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Q. Which of the following file types would NOT be a good candidate for a Docker config?
Q. Are Docker configs shared across all Swarm nodes?
Q. Which one of these is NOT a benefit of Docker configs?
Q. What kind of access do containers have to Docker configs?
Q. How do you attach a config in a Compose file?
Q. What happens if a config is removed while still in use?
Q. How is a config removed in Docker?
Q. Docker configs are best suited for which of the following?
Q. Which option is required when using configs in `docker service create`?
Q. What does the command `docker config inspect <config_name>` do?
Q. Which of the following file types is commonly stored in Docker configs?
Q. What happens if a service is updated with a new config?
Q. Which of the following is true about configs and services?
Q. What is the difference between Docker secrets and Docker configs?
Q. Which command lists all Docker configs?
Q. Can Docker configs be updated after being attached to a service?
Q. How do you create a Docker config?
Q. Which Docker mode is required to use Docker configs?
Q. What is the purpose of Docker configs?
Q. What is the main advantage of Docker secrets over environment variables?
Q. How do you assign a secret to a service in Docker Compose?
Q. Which YAML section in Docker Compose is used to declare secrets?
Q. What file system do secrets use inside containers?
Q. Can secrets be accessed by a non-root user inside the container?
Q. Can secrets be shared across multiple services in Docker?
Q. How do you provide multiple secrets to a service in Docker?
Q. Which role has access to secrets on a Docker Swarm manager node?
Q. How are secrets encrypted in Docker?
Q. Which of these best practices is recommended when working with secrets?
Q. What happens when a secret is deleted using Docker CLI?
Q. What command lists all Docker secrets in a Swarm?
Q. Can you update the contents of a Docker secret directly?
Q. Which of the following best describes a Docker secret?
Q. What is the default file permission for Docker secrets inside containers?
Q. Can a secret be used in a standalone Docker container?
Q. In which directory are secrets mounted inside a running container?
Q. Which of the following is a valid syntax to create a secret from a file?
Q. Which command is used to create a new Docker secret?
Q. What happens to Docker secrets when a container stops?
Q. How can secrets be accessed inside a container?
Q. Where are Docker secrets stored on a node?
Q. Which Docker feature must be enabled to use secrets?
Q. What is the purpose of Docker secrets?
Q. What is required before using secrets in a service?
Q. Can a single secret be used by multiple services?
Q. Which file format is used to pass a secret to Docker?
Q. What is the lifecycle of a Docker secret in Swarm?
Q. Which of the following is a secure way to handle secrets in Docker?
Q. Which Docker Swarm role has access to manage secrets?
Q. Which of these can be stored as a Docker secret?
Q. In which directory can a container find its secrets in Docker Swarm?
Q. What happens to a secret after the container using it stops?
Q. Can Docker secrets be updated in place?
Q. Are Docker secrets encrypted at rest?
Q. How do you remove a Docker secret?
Q. What is the default directory where secrets are mounted inside the container?
Q. Can Docker secrets be used in non-Swarm containers?
Q. Which of the following command lists all secrets in Docker Swarm?
Q. How can a container access a secret in Docker Swarm?
Q. How do you create a Docker secret from a file?
Q. Where are Docker secrets stored?
Q. Which Docker mode supports secrets management?
Q. What is the primary use of Docker secrets?
Q. What Swarm feature allows you to mount immutable configuration files into containers?
Q. Which command displays detailed information about a single service, including its update status?
Q. What field in a service definition tells Swarm to recreate tasks if they exit?
Q. How can you label a node for placement decisions?
Q. Which built-in network handles external load-balanced traffic to Swarm services?
Q. Which flag specifies the maximum number of task failures allowed during an update before rollback?
Q. What is the minimum recommended number of manager nodes for high availability?
Q. Which command rolls back a service to the previous working configuration?
Q. What scheduler strategy spreads tasks evenly across nodes by default?
Q. Which feature stores sensitive data such as passwords directly in Swarm’s Raft store?
Q. How can you pause a rolling update for a Swarm service?
Q. Which directive in a service update controls how many tasks are updated simultaneously?
Q. What built-in network encrypts container traffic automatically between Swarm nodes?
Q. Which command drains a node so it stops receiving new tasks?
Q. Which scheduling filter pins a service to nodes with a specific label?
Q. Which update failure action rolls back a service to the previous version automatically?
Q. What is the command to view the current join tokens for a Swarm?
Q. Which Swarm service mode ensures one task runs on every eligible node?
Q. What flag is used with docker swarm init to advertise the manager’s reachable address?
Q. Which command shows whether the current Docker engine is part of an active Swarm?
Q. What command promotes a worker to manager?
Q. What happens if all manager nodes are lost in a Swarm?
Q. How do you leave a Docker Swarm?
Q. Which of the following commands demotes a manager to a worker?
Q. What is the main purpose of the Raft protocol in Swarm?
Q. Which of the following best describes a manager node?
Q. What is a task in Docker Swarm?
Q. How do you scale a service in Docker Swarm?
Q. Which command removes a service in Docker Swarm?
Q. What command updates the image of a running service?
Q. What is the role of a worker node in Docker Swarm?
Q. What happens when a Swarm manager node fails?
Q. How does Docker Swarm handle load balancing?
Q. What is the default number of replicas if not specified when creating a Swarm service?
Q. Which command deploys a new service in Docker Swarm?
Q. What is a service in Docker Swarm?
Q. Which command shows the nodes in a Swarm cluster?
Q. Which command adds a new node to the Swarm as a worker?
Q. What command is used to initialize a Docker Swarm?
Q. What is Docker Swarm used for?
Q. Which protocol does Docker networking primarily use?
Q. What does `docker network prune` do?
Q. Which network driver is best for production multi-host deployments?
Q. Which command connects a running container to a network?
Q. How to remove a Docker network?
Q. Which Docker component handles DNS-based service discovery?
Q. How do containers on different Docker hosts communicate?
Q. What does the `--driver` option in `docker network create` specify?
Q. What is the default subnet used in bridge mode?
Q. Which file can define networks in Docker Compose?
Q. Which option connects a container to multiple networks?
Q. What is the scope of a custom bridge network?
Q. What does the command `docker inspect <network>` show?
Q. Which network driver uses the host’s networking stack directly?
Q. In a 'bridge' network, how do containers communicate with each other?
Q. Which Docker network type provides no external network access?
Q. What type of network driver is required for multi-host container communication?
Q. Which Docker command is used to create a custom network?
Q. Which Docker network driver is used by default?
Q. Which Docker network mode allows direct container-to-container communication without port mapping?
Q. What is the purpose of the 'macvlan' driver in Docker?
Q. Which command disconnects a container from a network?
Q. Which of these drivers isolates the container with no network access?
Q. What happens when you remove a Docker network in use?
Q. Can a container be connected to multiple networks?
Q. Which file stores network configuration in Docker Compose?
Q. Which type of Docker network allows container DNS resolution by name?
Q. What is the scope of a 'local' Docker network?
Q. Which command is used to create a custom bridge network?
Q. Which of the following networks is created by default in Docker?
Q. Which flag is used to set a static IP for a container?
Q. What is required to use the overlay network driver?
Q. What does 'docker network inspect' do?
Q. How do you connect a running container to a network?
Q. What is the function of the 'none' network driver?
Q. Which network driver should be used for multi-host container communication?
Q. Which Docker network mode allows containers to share the host’s network stack?
Q. What happens if you remove a network with active containers connected?
Q. What does Docker use for internal DNS resolution?
Q. In a Docker network, which service provides DNS-based container name resolution?
Q. Which Docker command removes a network?
Q. Can a user-defined bridge network have custom subnet and gateway?
Q. What does the `--internal` flag do when creating a Docker network?
Q. What is the function of a network alias in Docker?
Q. What is the default subnet range of the Docker bridge network?
Q. Can you connect a container to multiple Docker networks?
Q. Which network driver provides the highest level of network isolation?
Q. How can you inspect a Docker network?
Q. What is required to use the overlay network?
Q. Which driver should be used to assign a container an IP from the local LAN?
Q. What happens when a container is started with --network=none?
Q. Which command is used to connect a container to a network?
Q. Which command lists all Docker networks?
Q. Which network driver is used for multi-host networking?
Q. What does the 'host' network driver do in Docker?
Q. Which Docker network driver allows containers on the same host to communicate?
Q. Which is the default network driver in Docker?
Q. What type of volume is created when no name is specified in `docker run -v /data`?
Q. Which command removes all unused volumes?
Q. Which of the following is a difference between a bind mount and a named volume?
Q. Which type of volume is managed by Docker and stored in the Docker directory?
Q. Which flag is used to mount volumes using long syntax in `docker run`?
Q. What happens when you remove a container using a volume?
Q. Which of the following is a valid way to mount a volume inside a container?
Q. How do you list all volumes created in Docker?
Q. Which command creates a named volume in Docker?
Q. What is the main purpose of Docker volumes?
Q. Which is true about volume data if a container is removed?
Q. What does `-v myvol:/data` mean?
Q. Which of the following allows volume declaration in Docker Compose?
Q. What is the scope of a named volume?
Q. How do you remove all unused volumes?
Q. Which type of mount is suitable for sharing config files from the host?
Q. Which flag in `docker-compose.yml` defines volume usage?
Q. What is an anonymous volume?
Q. Can you use the same volume with multiple containers?
Q. Which of the following mounts is temporary and lost after container stop?
Q. What is the benefit of using volumes over bind mounts?
Q. Which option is used with `docker run` to mount a volume?
Q. What happens if a container that uses a volume is deleted?
Q. Which command can be used to inspect the details of a Docker volume?
Q. Which volume type is managed by Docker?
Q. How can you list all Docker volumes on your system?
Q. Where are Docker volumes stored by default on Linux systems?
Q. Which command is used to create a Docker volume?
Q. What is a Docker volume primarily used for?
Q. Which instruction should be placed at the beginning of a Dockerfile?
Q. Can a Dockerfile contain comments?
Q. What should you do to reduce image size?
Q. Which instruction is used to configure the container at runtime?
Q. What is the default shell used by `RUN` in a Dockerfile?
Q. What flag skips the cache when building a Docker image?
Q. What does each line in a Dockerfile represent?
Q. What command builds an image using a Dockerfile?
Q. Which instruction in Dockerfile is deprecated?
Q. Which instruction can download files from a remote URL?
Q. What is the extension of a Dockerfile?
Q. Where should the Dockerfile be placed?
Q. What is the effect of using `ENTRYPOINT` with `CMD`?
Q. What is multi-stage build in Dockerfile?
Q. Which instruction sets the user to execute subsequent commands?
Q. How do you specify a maintainer for a Docker image?
Q. What is the best practice when copying large files in a Dockerfile?
Q. What happens if multiple `CMD` instructions are in a Dockerfile?
Q. Which instruction allows downloading and extracting tar files automatically?
Q. How can you copy files with permissions preserved?
Q. Which instruction is used to run scripts after a container starts?
Q. Which Dockerfile instruction is used to add metadata to an image?
Q. How can you specify environment variables in a Dockerfile?
Q. What does the `EXPOSE` instruction do in a Dockerfile?
Q. Which instruction sets the working directory inside a Docker container?
Q. What is the function of the `CMD` instruction?
Q. Which Dockerfile instruction copies files from the host system to the container?
Q. What is the purpose of the `FROM` instruction in a Dockerfile?
Q. What happens if both `CMD` and `ENTRYPOINT` are defined?
Q. How do you override a CMD at runtime?
Q. Which instruction should be used to clean up cache during image build?
Q. Which instruction can be used to copy files with permission changes?
Q. What is the default shell in Dockerfile on Linux containers?
Q. How can you reduce image size while writing Dockerfiles?
Q. Which Dockerfile instruction defines the user to run subsequent commands?
Q. What’s the difference between `ADD` and `COPY`?
Q. Which instruction is best for downloading dependencies during image build?
Q. What does `VOLUME` do in Dockerfile?
Q. What is the result of using multiple `FROM` instructions?
Q. Which instruction allows combining multiple commands into one layer?
Q. What does `ENV APP_ENV=production` do?
Q. What does `EXPOSE 80` do in a Dockerfile?
Q. What is the purpose of the `COPY` instruction?
Q. What is the difference between `CMD` and `ENTRYPOINT`?
Q. How can you add metadata to an image using Dockerfile?
Q. Which instruction is used to specify the default command when a container starts?
Q. What does the `RUN` instruction do in a Dockerfile?
Q. Which instruction in Dockerfile is used to specify the base image?
Q. Which functional interface is preferred for computations that may fail with an exception?
Q. In which Java version were functional interfaces introduced?
Q. Which functional interface method returns void?
Q. Which interface is marked as functional even though it has `default` methods?
Q. What is the main benefit of using functional interfaces in Java?
Q. Which functional interface accepts two arguments and returns a result?
Q. Which functional interface is used to chain multiple transformations?
Q. What is the output type of `Function<String, Integer>` when applied to a String?
Q. Which functional interface returns a value and may throw an exception?
Q. Which of these is NOT a standard functional interface in Java?
Q. Which functional interface method is defined in `Predicate`?
Q. What does the `Function` functional interface do?
Q. Which functional interface is used when no input is taken but a result is returned?
Q. Which method does `Consumer` functional interface define?
Q. What is the purpose of the `Predicate` functional interface?
Q. Which method is declared by the functional interface `Supplier`?
Q. Which of the following is a functional interface?
Q. Which annotation is used to indicate a functional interface?
Q. What is a functional interface in Java?
Q. Which method reference would map a collection of strings to their lengths?
Q. To map a stream of strings to their uppercase form, which method reference is used?
Q. What method reference would replace `() -> new Employee()`?
Q. Which is the method reference equivalent of `(a, b) -> a.compareToIgnoreCase(b)`?
Q. Which method reference is ideal for sorting a list of integers?
Q. Which method reference helps to instantiate a new ArrayList?
Q. What functional interface would you use with `String::length` in a stream mapping?
Q. What method reference could map Employee objects to their ages?
Q. Which type of method reference is `System.out::println`?
Q. What is the correct method reference to print each element in a list?
Q. Which method reference can replace a lambda used in filtering non-empty strings?
Q. What is the equivalent method reference for `x -> x.toString()`?
Q. Which method reference would replace `str -> str.trim()`?
Q. Which functional interface is used with `Supplier<Employee> supplier = Employee::new;`?
Q. Which type of method reference is `Employee::getName` when used in mapping operations?
Q. In the real-world, which method reference helps when sorting a list of strings alphabetically?
Q. What method reference would replace `(e1, e2) -> e1.getName().compareTo(e2.getName())`?
Q. Which method reference is used to create new objects via Supplier?
Q. Which method reference is commonly used to print each element of a collection?
Q. Can method references refer to overloaded methods?
Q. In which Java version were method references introduced?
Q. Which interface is typically used with `ClassName::new` to provide objects?
Q. What is returned by `Function<String, String> f = String::trim;` when applied to " Hello "?
Q. Is `object::staticMethod` a valid method reference?
Q. Which method reference form would match `Function<String, Integer> length = String::length;`?
Q. What kind of reference is `Arrays::sort`?
Q. Which is the correct method reference for `String::valueOf`?
Q. In which scenario can method references replace a lambda?
Q. Which is a valid method reference for creating a new `ArrayList`?
Q. What does `super::methodName` refer to?
Q. Method references require the functional interface to match in:
Q. Which method reference is equivalent to `(list, e) -> list.add(e)`?
Q. Which method reference replaces `s -> s.isEmpty()`?
Q. Which functional interface matches with `String::new` when used with a Supplier?
Q. What type of method reference is `this::equals`?
Q. Which of these is NOT a valid form of method reference?
Q. Which method reference is valid for invoking an instance method on a particular object?
Q. Which method reference can replace `x -> x.toString()`?
Q. Method references are available from which Java version?
Q. Which interface does `Supplier<ClassName>` match with?
Q. Which operator is used in method reference syntax?
Q. Is `ClassName::fieldName` a valid method reference?
Q. What does `super::method` represent?
Q. What is the syntax for a method reference to the current instance's method?
Q. Method references can be used with which Java API feature extensively?
Q. Which reference is equivalent to `(x, y) -> x.compareTo(y)`?
Q. What does `Function<String, Integer> lengthFunc = String::length;` do?
Q. Which method reference type allows creating new object instances?
Q. Which is the correct way to reference an instance method on an arbitrary object?
Q. Method references can replace lambdas when:
Q. What is the output of `Arrays.asList("a", "b").forEach(System.out::println);`?
Q. Which method reference is equivalent to `str -> str.trim()`?
Q. Which is a valid method reference to a constructor?
Q. Which form of method reference is `ClassName::staticMethodName`?
Q. Which functional interface is most suitable for `System.out::println`?
Q. Which form of method reference is used to refer to an instance method of an existing object?
Q. Can a method reference refer to a method with parameters?
Q. Method references are part of which Java version?
Q. What kind of method reference is used in `objectName::methodName`?
Q. Which interface is often used with a constructor reference like `ArrayList::new`?
Q. What is the method reference equivalent of `() -> ClassName.staticMethod()`?
Q. Can method references replace lambda expressions?
Q. What kind of method reference is `Thread::new`?
Q. Which of the following is NOT a valid method reference form?
Q. What is the equivalent method reference for `(x, y) -> Integer.compare(x, y)`?
Q. Method references can be used in combination with which Java feature?
Q. Which type of method reference is represented by `Object::toString`?
Q. Which method reference matches a lambda expression like `s -> s.toLowerCase()`?
Q. Which functional interface is often used with method references that return a value?
Q. What does the method reference `this::methodName` refer to?
Q. What type of method reference is `Math::abs`?
Q. What does `ClassName::new` represent in Java?
Q. Which method reference type is demonstrated by `System.out::println`?
Q. What is the purpose of a method reference in Java?
Q. Which type of method reference is demonstrated by `String::toUpperCase`?
Q. Which operator is used for method references in Java?
Q. In which Java version were method references introduced along with lambdas?
Q. Which functional interface should be used to replace a for-each loop with a lambda?
Q. What will be the output of `(x, y) -> x * y` for inputs 3 and 4?
Q. Can lambda expressions implement default methods in interfaces?
Q. What kind of interface is necessary for a lambda to be used?
Q. What will `() -> System.out.println("Hi")` produce?
Q. Lambda expressions were primarily introduced to support which Java feature?
Q. Which lambda expression can be used to check if a string is empty?
Q. What is the syntax to implement a `Runnable` using a lambda?
Q. What is the purpose of method references like `String::length`?
Q. Can lambda expressions contain loops?
Q. What is the role of parentheses in lambda expressions?
Q. Which of the following can lambda expressions NOT directly implement?
Q. What is the type of `x -> x.toUpperCase()` if x is a String?
Q. Can a lambda expression return a value?
Q. What does the following lambda expression represent: `x -> x % 2 == 0`?
Q. Which lambda expression will reverse a given string 's'?
Q. Which of the following is a correct lambda expression with no parameters that returns 100?
Q. Which interface is used to implement a lambda that takes two arguments and returns a boolean?
Q. Which interface is designed to accept a value and produce no result?
Q. What will be the output of `(a, b) -> a - b` for inputs 5 and 3?
Q. How many abstract methods can a functional interface contain?
Q. Which functional interface consumes two input arguments and returns no result?
Q. What restriction is placed on local variables used inside a lambda?
Q. What does a lambda like `(x, y) -> x * y` implement?
Q. Which of the following is a valid method reference to an instance method?
Q. Can lambdas access static variables of the enclosing class?
Q. Which Java keyword is used to ensure an interface is functional?
Q. Which operator is used in method references?
Q. Which functional interface returns a result and may throw an exception?
Q. What is the output of `Runnable r = () -> System.out.println("Hello"); r.run();`?
Q. Can a lambda expression have multiple statements in its body?
Q. Which lambda expression counts the length of a string?
Q. Which lambda expression syntax is valid to implement a `Consumer<String>` that prints the string?
Q. What does the `Supplier` functional interface represent?
Q. Which functional interface is commonly used to filter elements in a stream?
Q. Which feature works closely with lambda expressions to facilitate bulk data operations?
Q. Which method does the `Runnable` functional interface define?
Q. What does a lambda expression represent in Java?
Q. Which of the following functional interfaces is used to perform operations on primitive int values?
Q. What is the purpose of method references in the context of lambdas?
Q. What is the default behavior of variables captured in lambdas?
Q. Which Stream API method is commonly used with lambdas?
Q. In which scenario is using a lambda not possible?
Q. Can lambdas be used to replace anonymous inner classes that implement listeners in GUI?
Q. Which of the following is a valid lambda expression that accepts two integers and returns their sum?
Q. Which statement is true about lambdas and anonymous classes?
Q. Which annotation helps in identifying a functional interface?
Q. In lambda expression `(a, b) -> a + b`, what is required of 'a' and 'b'?
Q. Which of the following lambda expressions is valid for a `Predicate<Integer>`?
Q. What is the main purpose of lambda expressions in Java?
Q. Which of these interfaces does NOT support lambda implementation?
Q. Which method is provided by the Predicate functional interface?
Q. Which functional interface is used to evaluate conditions with lambda expressions?
Q. Which lambda expression syntax is correct for a function that takes no arguments and returns 5?
Q. What is the output type of this lambda: `(String s) -> s.length()`?
Q. Which of these is NOT a characteristic of lambda expressions in Java?
Q. What is the default return type of a lambda expression without a return statement?
Q. Can lambda expressions be used to override methods in interfaces with multiple abstract methods?
Q. Which feature in Java 8 works closely with lambda expressions for collection processing?
Q. Which of these is NOT a benefit of using lambda expressions?
Q. Can a lambda expression throw a checked exception?
Q. Which functional interface does not take any arguments nor return any result?
Q. What is captured from the enclosing scope in a lambda expression?
Q. Which of the following is a valid lambda expression for no parameters?
Q. Which method reference operator is used in Java?
Q. Which functional interface returns a boolean value after testing a condition?
Q. Which functional interface is used when no input is provided but a result is returned?
Q. Which keyword is used to define a functional interface?
Q. Which of these is NOT a valid functional interface in Java?
Q. What is the type of a lambda expression?
Q. Lambda expressions can only be used with:
Q. Which of these is a correct lambda expression syntax in Java?
Q. Which symbol is used in a lambda expression to separate parameters from the body?
Q. Which Java version introduced Lambda Expressions?
Q. How do you copy a dictionary?
Q. Which statement will throw a KeyError?
Q. How do you iterate over keys and values in a dictionary?
Q. What does the `update()` method do?
Q. Which of the following can be a dictionary key?
Q. Which of the following is not a dictionary method?
Q. What will happen if you assign a value to an existing key?
Q. What does `dict.pop('key')` do?
Q. Dictionaries in Python are:
Q. Which method returns all key-value pairs in a dictionary?
Q. How can you get all the keys from a dictionary?
Q. What will `my_dict = {'a': 1}; 'a' in my_dict` return?
Q. Which method removes all items from a dictionary?
Q. What will `list({'a': 1, 'b': 2})` return?
Q. Which method adds a new key-value pair to a dictionary?
Q. What will `my_dict = {'a':1}; my_dict['b']` return?
Q. Which method is used to get the value from a dictionary for a given key?
Q. What will `len({'a':1, 'b':2, 'c':3})` return?
Q. Which of the following is the correct way to define a dictionary?
Q. What is a dictionary in Python?
Q. What happens if you delete a key that doesn't exist using `del`?
Q. What is the output of `dict(zip(['a', 'b'], [1, 2]))`?
Q. Which data type is returned by `dict.items()`?
Q. Which of these can be used to loop through a dictionary?
Q. What does `dict.keys()` return?
Q. Can dictionary values be duplicated?
Q. What will `dict([(1, 'a'), (2, 'b')])` return?
Q. What does `dict1 == dict2` check?
Q. Which of the following will raise a TypeError?
Q. Which is a correct way to merge two dictionaries `d1` and `d2` in Python 3.9+?
Q. What is the time complexity of accessing a value from a dictionary?
Q. What does `popitem()` do in a dictionary?
Q. Which method returns the value for the given key, or None if not found?
Q. Can a dictionary have a key of any data type?
Q. What does `dict.setdefault('key', default)` do?
Q. Which keyword is used to check if a key exists in a dictionary?
Q. What will `dict.fromkeys(['a', 'b'], 0)` return?
Q. What happens when two keys in a dictionary are the same?
Q. Which method is used to return a view object of dictionary values?
Q. What does the 'uptime' command display?
Q. Which command shows real-time log updates?
Q. Which option with 'grep' makes the search case-insensitive?
Q. What does the 'export' command do in Linux?
Q. Which file is used to configure network interfaces in older Debian systems?
Q. Which command is used to find the location of a command binary?
Q. What does the 'alias' command do?
Q. Which of the following commands will change the hostname of a Linux machine?
Q. Which command will compress files using bzip2 compression?
Q. Which option with the 'rm' command is used to prompt before every removal?
Q. Which command is used to view and manage disk partitions interactively?
Q. Which command is used to list all running services in a systemd-based system?
Q. Which command is used to list USB devices connected to a Linux system?
Q. Which command is used to test network connectivity?
Q. Which file controls the startup services in a systemd-based system?
Q. What does the command 'ps' do?
Q. Which command is used to extract a `.zip` file?
Q. Which directory contains log files in Linux?
Q. Which of the following commands is used to change file ownership?
Q. Which command is used to show the current working directory?
Q. Which command is used to display the last lines of a file?
Q. Which symbol is used to redirect standard output to a file?
Q. Which file is used to define scheduled cron jobs?
Q. Which command is used to display active internet connections?
Q. Which command is used to remove non-empty directories?
Q. Which command is used to count the number of lines in a file?
Q. Which command in Linux is used to search for a string inside a file?
Q. Which Linux command shows a file one page at a time?
Q. Which command is used to extract `.tar.gz` files?
Q. Which Linux command shows the number of lines, words, and characters in a file?
Q. Which of the following commands is used to delete a directory in Linux?
Q. Which command will display the CPU architecture?
Q. Which command lists all files and subdirectories recursively?
Q. Which command shows the path of a command's executable?
Q. Which of these is a valid runlevel for reboot?
Q. What does the command 'ls -lh' do?
Q. Which command is used to print the current user ID and group ID?
Q. Which command can be used to create an empty file in Linux?
Q. Which command will display the disk usage of a directory and its contents?
Q. Which command is used to display the kernel version in Linux?
Q. Kafka Connect uses which type of connectors?
Q. Kafka broker configuration file is named:
Q. Kafka offsets are stored by default in:
Q. Which Kafka feature provides strong message delivery guarantees?
Q. Kafka retention policy can be based on:
Q. What is the effect of increasing the number of Kafka partitions?
Q. Kafka MirrorMaker is mainly used for:
Q. Kafka guarantees message order in:
Q. In Kafka, 'compacted topics' are useful for:
Q. What is a Kafka message key used for?
Q. Kafka is optimized for which type of workloads?
Q. What does `min.insync.replicas` ensure in Kafka?
Q. Kafka uses what kind of commit for offset management?
Q. Which command is used to consume messages from a topic?
Q. What happens if a Kafka topic does not exist when a producer sends data?
Q. What is the use of the Kafka AdminClient API?
Q. Kafka’s default message compression type is:
Q. Which Kafka command lists the current consumer groups?
Q. Which Kafka setting determines how often data is flushed to disk?
Q. Kafka ensures scalability by using:
Q. In Kafka, messages are immutable. This means:
Q. Kafka relies on which data structure for its core storage?
Q. What is the default number of partitions for a Kafka topic?
Q. Kafka can be deployed using:
Q. Kafka can encrypt messages using:
Q. Which Kafka feature allows integration with relational databases?
Q. Kafka topics can be configured for cleanup using:
Q. What does the `acks=all` setting ensure?
Q. Kafka brokers are identified by:
Q. What is the default format of Kafka message timestamps?
Q. Which feature allows Kafka to provide durability?
Q. What does Kafka’s `auto.offset.reset=earliest` do?
Q. Which tool is used to manage Kafka topics?
Q. Kafka’s throughput is highest when:
Q. Kafka messages are stored in:
Q. What happens when a Kafka broker fails?
Q. Which Kafka component helps to mirror data between clusters?
Q. Kafka Connect is suitable for:
Q. Which API in Kafka is used for writing messages?
Q. Kafka uses what strategy for distributing partitions to consumers?
Q. What happens when a consumer group has more consumers than partitions?
Q. Kafka cluster scaling is primarily achieved by:
Q. Which of the following is true about Kafka consumers?
Q. Which Kafka feature supports exactly-once processing?
Q. What is the use of 'acks=1' in Kafka producer?
Q. Kafka topics can be configured with:
Q. Which component is used to stream data processing in Kafka?
Q. Kafka’s log compaction is useful for:
Q. In Kafka, what is a 'leader' replica?
Q. Kafka message offsets are unique to:
Q. What type of messaging system is Kafka?
Q. What is the purpose of Kafka’s retention policy?
Q. Kafka partitions help achieve:
Q. Kafka consumers fetch data from:
Q. What is the primary function of Kafka brokers?
Q. Kafka's replication factor determines:
Q. Which component assigns partitions to consumers?
Q. Kafka is highly scalable due to:
Q. Kafka topics are identified by:
Q. In Kafka, a 'consumer group' allows:
Q. Kafka Connect enables integration with:
Q. Kafka cluster metadata is updated using:
Q. Kafka’s 'log compaction' feature allows:
Q. Which property enables idempotent Kafka producers?
Q. Kafka uses which mechanism to ensure high throughput?
Q. Kafka stores consumer offsets in:
Q. Which setting controls how often the producer sends batches?
Q. Kafka’s leader election is handled by:
Q. What ensures message durability in Kafka?
Q. What does ISR stand for in Kafka?
Q. What is Kafka’s default message format?
Q. What is the role of the Kafka producer API?
Q. Kafka 2.8.0 introduced the option to:
Q. Kafka’s load balancing across consumers is handled by:
Q. Kafka MirrorMaker is used for:
Q. Kafka partitions can be reassigned to brokers using:
Q. Kafka’s 'exactly-once' guarantee works best when:
Q. Kafka consumers can manage offsets manually or:
Q. Kafka's message keys are used to:
Q. Which configuration determines how Kafka handles log cleanup?
Q. Kafka Connect includes which types of connectors?
Q. Kafka's Streams API is used for:
Q. In Kafka, 'throughput' typically refers to:
Q. Kafka does not delete messages immediately after consumption because:
Q. Kafka’s retention policy is based on:
Q. Which of these improves Kafka message durability?
Q. Kafka consumers subscribe to topics using:
Q. Which Kafka component acts as a distributed commit log?
Q. Kafka topics are split into partitions to:
Q. What happens if a Kafka producer sends messages faster than the broker can handle?
Q. Kafka is designed to handle:
Q. Kafka clients can be written in:
Q. In a Kafka cluster, each broker has a unique:
Q. Kafka producers send data to:
Q. Kafka topics can be divided into multiple:
Q. What is the main purpose of a Kafka broker?
Q. Which of these guarantees is strongest in Kafka by default?
Q. Which of the following can automatically scale Kafka workloads?
Q. What does Kafka's 'linger.ms' setting control?
Q. Kafka messages are immutable, meaning:
Q. Kafka achieves low latency because it:
Q. Kafka provides fault tolerance through:
Q. In Kafka, each partition is:
Q. Kafka messages are grouped into:
Q. Which Kafka component helps in aggregating and transforming data in real time?
Q. To improve Kafka durability, you should:
Q. Kafka partition count affects:
Q. How does Kafka ensure consumers do not re-read messages?
Q. Which of these can consume Kafka topics?
Q. Kafka partitions can be distributed among brokers for:
Q. What is the role of 'consumer offset' in Kafka?
Q. Which property ensures Kafka producer does not duplicate messages on retry?
Q. In Kafka, what is the default behavior if a consumer crashes?
Q. What ensures load distribution among Kafka consumers?
Q. Kafka supports exactly-once delivery using:
Q. Kafka guarantees ordering of messages:
Q. What does 'acks=0' mean in Kafka producer config?
Q. Which Kafka API allows you to programmatically create and delete topics?
Q. Which configuration controls how frequently Kafka deletes old data?
Q. Kafka can handle high throughput due to:
Q. How does Kafka achieve horizontal scalability?
Q. What is the role of the Kafka offset?
Q. Kafka’s throughput can be increased by:
Q. Kafka’s log compaction ensures:
Q. To configure replication in Kafka, you set:
Q. Kafka partitions are assigned to consumers using:
Q. Kafka can achieve exactly-once semantics using:
Q. What is the default delivery guarantee of Kafka?
Q. Kafka producers can send messages in batches to improve:
Q. Which Kafka API is used to process data as streams?
Q. Kafka topics can be configured to delete messages based on:
Q. Kafka ensures durability using:
Q. What does a Kafka broker do when it becomes the leader for a partition?
Q. In Kafka, a partition can be:
Q. Kafka MirrorMaker is used to:
Q. What is log retention policy in Kafka?
Q. Kafka uses what for leader election and cluster metadata?
Q. Which Kafka component allows connectors for databases and storage systems?
Q. Kafka consumer group ensures that:
Q. Kafka uses what data structure to store messages in a partition?
Q. What happens if all replicas of a partition go out of sync?
Q. What is the purpose of Kafka's ISR (In-Sync Replicas)?
Q. In Kafka, messages are appended to a partition in:
Q. Kafka Streams state stores are used to:
Q. Kafka guarantees message delivery under which setting?
Q. Kafka handles schema evolution best with:
Q. Kafka retention settings are configured:
Q. Kafka consumers poll messages using:
Q. Which Kafka feature helps prevent loss of unprocessed messages?
Q. What ensures Kafka producers don’t overwhelm the broker?
Q. What is the default data retention policy in Kafka?
Q. In a Kafka cluster, which node acts as the leader of a partition?
Q. Kafka topics with compaction enabled are useful for:
Q. What type of messages does Kafka Streams work with?
Q. Kafka compaction is used to:
Q. What is the purpose of Kafka Connect?
Q. Kafka uses which mechanism to avoid message duplication?
Q. Kafka message ordering is guaranteed:
Q. Kafka achieves fault tolerance through:
Q. What is the function of a Kafka broker?
Q. Which of the following best describes Kafka's role in a data pipeline?
Q. Kafka’s distributed architecture allows:
Q. Kafka messages are deleted based on which criteria?
Q. Kafka uses which of the following to ensure message durability?
Q. The Kafka internal topic for storing consumer offsets is:
Q. Which Kafka component enables real-time stream processing?
Q. Kafka producer idempotency prevents:
Q. Kafka's default behavior when a consumer fails is to:
Q. Kafka messages are stored on disk as:
Q. The command to list topics in Kafka is:
Q. Kafka topics are divided into:
Q. In Kafka, producers can send messages to a specific partition using:
Q. Kafka consumers pull data from:
Q. Kafka retains logs even if:
Q. Which configuration ensures a Kafka producer retries failed sends?
Q. Kafka messages are identified by:
Q. Kafka's high throughput is enabled primarily by:
Q. Which Kafka component is responsible for publishing records?
Q. Kafka is ideal for which use case?
Q. Kafka partitions can be reassigned using:
Q. Kafka cluster performance can be monitored using:
Q. Kafka guarantees message ordering within:
Q. What is a dead-letter queue (DLQ) in Kafka used for?
Q. Kafka allows a topic to have how many partitions?
Q. Kafka partitions must have:
Q. The default format for Kafka message key and value is:
Q. Kafka topics can be configured to retain messages:
Q. Kafka retains data based on:
Q. What does the 'bootstrap.servers' configuration specify?
Q. Kafka achieves durability primarily through:
Q. What happens if a Kafka topic does not exist when a producer tries to send data?
Q. Which is NOT a valid delivery guarantee in Kafka?
Q. In Kafka, how are consumer offsets stored in newer versions?
Q. Kafka is best suited for which type of data processing?
Q. Which Kafka component stores metadata about topics and partitions in older versions?
Q. What does the 'linger.ms' configuration do in Kafka producer?
Q. Which Kafka client API is used to write messages to topics?
Q. What is the main benefit of Kafka's partitioning model?
Q. Which Kafka version introduced KRaft (Kafka Raft Metadata mode)?
Q. Kafka uses ZooKeeper for all except:
Q. Kafka uses what data structure for storing messages?
Q. What happens when a consumer commits an offset?
Q. What does Kafka use to monitor health and performance?
Q. Kafka guarantees message delivery to consumers at which level?
Q. What is a 'consumer lag' in Kafka?
Q. Which protocol does Kafka use for communication?
Q. Kafka's topic cleanup policy 'compact' does what?
Q. Which file format is commonly used for Kafka configurations?
Q. What is a connector in Kafka Connect?
Q. Kafka Connect uses which of the following to run connectors?
Q. Kafka messages can be compressed using all except:
Q. Kafka consumers track their read progress using:
Q. Which component is not part of the Kafka ecosystem?
Q. Kafka uses which method to distribute messages among partitions?
Q. What does 'offset.reset' configuration control?
Q. Which of these ensures reliable delivery in Kafka?
Q. What is the role of the Kafka Controller?
Q. What is the default replication factor in Apache Kafka if not specified?
Q. Kafka message ordering can break if:
Q. In Kafka, which process reassigns partitions during failure?
Q. Kafka allows producers to send messages to a specific partition using:
Q. Which Kafka component handles client requests and storage?
Q. Which Kafka feature supports stream joins and windowing?
Q. Which option allows Kafka to support exactly-once semantics?
Q. Kafka’s primary design goal is:
Q. Which command lists all available Kafka topics?
Q. Kafka can be used as a replacement for:
Q. Kafka topic replication improves:
Q. How does Kafka scale horizontally?
Q. What happens if Kafka’s disk becomes full?
Q. Kafka messages are assigned which type of identifier?
Q. How does Kafka handle backpressure?
Q. Which property controls the maximum number of records returned in one poll?
Q. What type of storage does Kafka use to persist data?
Q. In Kafka, what is the purpose of the 'key' in a message?
Q. Kafka achieves fault tolerance by:
Q. Which Kafka feature ensures messages are processed in the exact order they are received?
Q. Which of the following is true about Kafka's log compaction?
Q. Which one is a common message format used with Kafka?
Q. What does Kafka use to serialize and deserialize data?
Q. Kafka works best in which type of architecture?
Q. Kafka is highly available due to:
Q. What is a dead-letter queue (DLQ) in Kafka?
Q. Which setting in the Kafka producer ensures delivery of messages without duplication?
Q. Which Kafka consumer API allows asynchronous processing?
Q. Kafka topics are divided into which of the following?
Q. What is the maximum size of a Kafka message by default?
Q. Kafka is best suited for which type of systems?
Q. What does the 'linger.ms' setting in Kafka producer do?
Q. What is the minimum number of brokers required in a Kafka cluster?
Q. Which tool can be used to replicate Kafka data across clusters?
Q. How can Kafka provide exactly-once delivery semantics?
Q. What is the role of ZooKeeper in Kafka?
Q. What happens to messages in Kafka if no consumer reads them?
Q. Which Kafka component enables building distributed stream processing applications?
Q. What is the function of the Kafka retention policy?
Q. Which of the following is a stream processing library for Kafka?
Q. Which Kafka component helps to transform and move data between systems?
Q. What is the default Kafka message retention policy?
Q. Which delivery semantics is NOT supported by Kafka?
Q. Which setting determines the durability of a Kafka message?
Q. What does a Kafka producer do?
Q. Which of the following ensures coordination between Kafka brokers?
Q. Which tool is commonly used to monitor and manage Kafka clusters?
Q. Kafka is written in which programming language?
Q. What happens when a Kafka consumer fails?
Q. Which of the following is NOT a Kafka component?
Q. Kafka messages are always stored in the order they are received in a:
Q. What does 'partition' in Kafka help achieve?
Q. Which component of Kafka is responsible for maintaining offset information?
Q. What is the role of a Kafka broker?
Q. In Kafka, what is a 'topic'?
Q. What is Apache Kafka primarily used for?
Q. Which of the following is true about Django ORM?
Q. How do you define static files directory in settings.py?
Q. Which signal is sent after a model is saved?
Q. Which module provides timezone utilities in Django?
Q. Which of these is used to upload and handle images?
Q. Which of the following defines a one-to-many relationship?
Q. What does F() expression in Django do?
Q. What is the default port when running Django locally?
Q. Which tag is used to render a block of content in Django templates?
Q. Which command creates migration files from model changes?
Q. Which function creates a model form dynamically in Django?
Q. Which setting is used to define the list of allowed hostnames?
Q. Which of the following is a context processor?
Q. Which class is used to serialize Django models into JSON?
Q. Which HTTP method is used for deleting an object in REST API?
Q. What does the Meta class inside a model define?
Q. Which of these is used to define a database model in Django?
Q. Which of the following is a valid template tag to extend a base template?
Q. Which method is used to check if a user is authenticated?
Q. In which file do you typically register models to appear in Django admin?
Q. Which module provides URL routing functionality in Django?
Q. Which of these template filters is used to convert a string to lowercase?
Q. Which management command in Django creates a new application?
Q. Which Django component renders the admin interface?
Q. Which function in Django is used to return JSON responses?
Q. What does verbose_name do in Django models?
Q. Which of these allows you to group URLs in Django?
Q. How do you access the current session in Django views?
Q. Which Django app helps manage users and permissions?
Q. Which of these can be used to send HTML emails in Django?
Q. Which tag is used to check a condition in Django templates?
Q. Which of these classes provides a view for deleting an object?
Q. Which tag is used to load a custom template tag file?
Q. What is the default database engine used in Django?
Q. Which of the following is a valid migration command?
Q. Which of the following is used to add pagination in Django?
Q. What is the use of Django signals?
Q. Which middleware is required for sessions to work?
Q. Which of these is a valid way to include another template?
Q. Which of the following allows file uploads in Django forms?
Q. Which of these is used to define a form based on a model?
Q. What is the purpose of the manage.py file?
Q. Which setting is used to configure the time zone in a Django project?
Q. What is the default primary key field type in Django models?
Q. What does csrf_token protect against?
Q. Which class-based view is used to create a new object in Django?
Q. Which of the following template tags is used for looping in Django templates?
Q. What does request.GET contain in Django?
Q. Which method is used to send email in Django?
Q. What is the purpose of settings.py in a Django project?
Q. What does the objects.all() method return?
Q. Which of these is a built-in Django app?
Q. What does request.user represent in Django?
Q. Which of the following is used to create a custom model manager?
Q. Which option allows a field to be used as a primary key?
Q. Which method is used to save changes to a model instance?
Q. What is the use of the Meta class in Django models?
Q. Which of the following is a valid way to define a URL pattern?
Q. Which HTTP method is used by Django form submissions by default?
Q. What type of object is returned by Django ORM queries?
Q. What does the blank=True option in a model field mean?
Q. Which command is used to apply changes made to models to the database?
Q. Which Django setting is used to enable debug mode?
Q. How do you access static files in Django templates?
Q. What does the null=True option in a model field signify?
Q. How do you prevent a model field from being editable in Django admin?
Q. Which template tag is used to display a variable in Django templates?
Q. Which model field should be used to store boolean values?
Q. Which of the following is a valid file for configuring database settings in Django?
Q. Which of the following is used to create a one-to-many relationship in Django models?
Q. What does the render function return in Django views?
Q. Which of the following is used to reverse a URL name into a URL path?
Q. How are templates linked to views in Django?
Q. Which of the following is true about Django signals?
Q. How do you run a Django project on the development server?
Q. Which template tag is used for looping over a list?
Q. What does csrf_exempt decorator do?
Q. Which class-based view is used to list model objects?
Q. Which tool is recommended for debugging in Django?
Q. Which function can be used to hash passwords in Django?
Q. Which model field would you use to store an image file?
Q. Which setting is used to define the time zone in a Django project?
Q. Which of the following best describes QuerySet in Django?
Q. Which of these is used to add custom error messages in Django forms?
Q. Which method is used to validate a Django form manually?
Q. Which database is used by default in Django if no other is specified?
Q. Which of the following is not a valid status code returned by Django?
Q. What is the purpose of get_object_or_404 in Django?
Q. How do you access form data submitted via POST method in a view?
Q. Which option is used in Meta class to define the default ordering of model objects?
Q. What does the auto_now_add attribute in a DateTimeField do?
Q. Which function is used to define a custom admin layout?
Q. Which setting defines the list of domains allowed to serve a Django site?
Q. What is the main purpose of middleware in Django?
Q. Which of the following commands is used to start a new Django project?
Q. Which class is used to create a list view in Django class-based views?
Q. What is the use of `__str__()` method in Django models?
Q. Which signal is triggered before a model instance is saved?
Q. What is the default port for Django's development server?
Q. Which setting stores the full list of installed apps?
Q. What is the use of `get_absolute_url()` method in models?
Q. What is the use of `reverse()` function in Django?
Q. What does the `on_delete=models.CASCADE` option do?
Q. Which field would be best to store user profile pictures?
Q. Which Django feature allows automatic form creation from models?
Q. Which of the following settings must be set for sending email in Django?
Q. Which of the following is used for defining custom template filters?
Q. Which is the correct order of Django’s MVT architecture?
Q. Which command shows all defined routes in Django?
Q. Which signal is triggered when a model instance is saved?
Q. Which command is used to start a new Django app?
Q. What does `Meta` class inside a Django model define?
Q. How can you protect a view so that only authenticated users can access it?
Q. Which middleware handles session management in Django?
Q. Which of the following is used to filter a queryset in Django?
Q. What does the `get_object_or_404()` function do?
Q. Which of the following is used to paginate querysets in Django?
Q. How do you refer to another model in a ForeignKey field?
Q. What does `null=True` in a model field mean?
Q. Which module contains Django’s generic views?
Q. Which method is used to check if a form is valid?
Q. What is the correct way to create a reverse relation in a Django model?
Q. What is the correct way to define a many-to-many field in Django?
Q. Which class in Django REST Framework is used for serialization?
Q. Which template tag is used for conditional logic?
Q. Which Django view decorator is used to allow only staff users?
Q. What is `MEDIA_ROOT` in Django used for?
Q. How can you serve static files during development?
Q. Which of the following is required in a model to use Django Admin?
Q. Which of these is a valid lookup type in Django ORM?
Q. What is the name of the file used to define model admin settings?
Q. Which method is used to delete a record in Django models?
Q. How do you create a superuser in Django?
Q. Which of these is NOT a valid field type in Django?
Q. Which context variable contains the logged-in user in templates?
Q. Which method is called when a form is submitted with valid data?
Q. Which method in Django model is used to save data to the database?
Q. Which of the following is used to display flash messages in Django?
Q. What is the default template engine used by Django?
Q. Which class is used to define model forms in Django?
Q. Which command is used to create migrations for changes in models?
Q. Which of these is used to build APIs in Django?
Q. Which command starts a new Django project?
Q. Which template tag is used to define content blocks?
Q. Which tag is used to extend templates in Django?
Q. What is the recommended way to define URL paths in Django 2+?
Q. How can you group related URLs in Django?
Q. Which signal is sent before a model is deleted?
Q. Which of the following helps with model serialization in Django?
Q. Which decorator restricts access to logged-in users?
Q. What is the default port for Django development server?
Q. Which file is essential to turn a folder into a Django app?
Q. Which command removes database tables for a Django app?
Q. Which of the following is used to hash passwords in Django?
Q. Which class is extended to create a form in Django?
Q. Which file is used to define Django settings?
Q. What is used in Django to paginate query results?
Q. What does `unique=True` mean in Django models?
Q. Which Django command shows SQL statements for migrations?
Q. Which middleware is required for session support?
Q. In Django, what does `__str__` method define?
Q. Which database backend is NOT supported natively by Django?
Q. Which of these is a class-based generic view in Django?
Q. Which function is used to redirect users in Django views?
Q. What is the purpose of `get_object_or_404()` in Django?
Q. Which database is supported by Django by default?
Q. Which decorator is used to exempt a view from CSRF protection?
Q. How do you fetch all users in Django?
Q. Which middleware is essential for authentication to work?
Q. Which method is used to validate a form in Django?
Q. Which file should contain custom template tags?
Q. Which command dumps the database data to a file?
Q. What does the `Meta` class inside a Django model do?
Q. Which Django template tag is used for URL reversing?
Q. Which function is used to display admin site?
Q. What happens if you don’t add a view to `urlpatterns`?
Q. What is the correct way to reverse a URL in Django?
Q. Which setting should be set to False in production?
Q. Which of these is used for database-independent models in Django?
Q. How do you include static files in Django templates?
Q. Which field should be used to generate slugs in Django?
Q. Which signal is sent after a model instance is saved?
Q. Which management command is used to check for errors without making migrations?
Q. What does `request.POST.get('key')` return if the key is not found?
Q. Which method is used to create a superuser in Django?
Q. In Django, what does `blank=True` mean in model fields?
Q. What is the purpose of `csrf_token` in Django templates?
Q. Which Django class is used to create a form from a model?
Q. Which of the following is the default templating engine in Django?
Q. Which command creates a new Django application?
Q. Which view decorator restricts access to logged-in users?
Q. Which template tag is used to include another template?
Q. Which setting defines the list of allowed hosts?
Q. What does `HttpResponseRedirect` do?
Q. Which command is used to apply migrations?
Q. Which field should be used to store large text in Django?
Q. How can you access GET parameters in a view?
Q. Which of these is used to create custom commands in Django?
Q. Which middleware handles user sessions in Django?
Q. Which template filter is used to make a string uppercase?
Q. Which HTTP method is not handled by default in Django views?
Q. What is the default port when running `runserver`?
Q. Which file contains database settings in Django?
Q. What does `{{ variable|default:'N/A' }}` do in Django templates?
Q. Which method can be used to delete an object in Django ORM?
Q. How can you limit the number of items displayed in a QuerySet?
Q. How do you define a one-to-one relationship in Django models?
Q. What is the purpose of `null=True` in a Django model field?
Q. Which Django ORM method returns a single object or raises DoesNotExist?
Q. Which tag is used in Django templates for conditions?
Q. Which of the following can be used to connect models in Django?
Q. Which Django command is used to list all registered URLs?
Q. What is the correct way to define a URL namespace in Django?
Q. Which method is called after a model instance is created?
Q. Which class is used to return JSON response in Django?
Q. Which tag is used for loop iteration in templates?
Q. Which of the following can be used to paginate Django QuerySets?
Q. Which setting is used to manage static file locations?
Q. What is the purpose of `Model.objects.all()`?
Q. Which middleware helps protect against clickjacking?
Q. Which attribute ensures uniqueness of a model field?
Q. What is used to test Django views?
Q. Which Django feature allows displaying related objects in admin?
Q. Which method is used to override model saving behavior?
Q. What does the `blank=True` attribute mean in a model field?
Q. Which built-in field validates email addresses in Django?
Q. Which template tag is used to load custom template tags?
Q. Which is the correct way to define URL patterns in Django?
Q. What does `@csrf_exempt` decorator do?
Q. In Django admin, how can we register a model?
Q. Which function is used to serve static files in development?
Q. Which method in Django model is called before saving?
Q. Which field is best for storing boolean values?
Q. Which class is used to define a form manually in Django?
Q. Which HTTP status code indicates a redirect in Django?
Q. Which Django class is used to create a class-based view?
Q. Which database is the default in Django?
Q. Which method is used to create a new model object and save it?
Q. What does `@require_GET` do in Django views?
Q. Which of the following signals is sent after saving a model?
Q. What does `AutoField` in Django represent?
Q. Which tool is used to serialize and deserialize Django models to JSON?
Q. Which setting defines the base directory of a Django project?
Q. Which module is used to create model forms automatically?
Q. Which tag is used to define a placeholder for content in a Django base template?
Q. What happens if `DEBUG = True` in settings?
Q. Which view type handles HTTP methods like GET, POST in Django?
Q. Which of these is used to perform raw SQL queries in Django?
Q. What does `slug` field store?
Q. Which is the default port for Django development server?
Q. What does the `filter()` method return in Django ORM?
Q. Which method is used to include a template within another template?
Q. Which function is used to redirect users to another URL?
Q. Which of the following decorators is used to restrict access to logged-in users?
Q. In Django, which field is suitable for storing long text?
Q. Which of the following is used to define relationships between models?
Q. What will `get_or_create()` return in Django?
Q. Which of the following is a valid Django middleware?
Q. What is the purpose of `INSTALLED_APPS` in settings.py?
Q. Which Django command applies migrations to the database?
Q. Which Django command creates migration files?
Q. What does `manage.py runserver` do?
Q. Which of the following settings defines where templates are located?
Q. What does the `@receiver` decorator do in Django?
Q. What does `__str__` method do in a Django model?
Q. How are environment-specific settings typically handled in Django?
Q. What does `blank=True` mean in a Django model field?
Q. In Django, what does `request.user` return?
Q. Which tag is used to load custom tags and filters in a Django template?
Q. Which database is used by default in Django?
Q. Which HTTP status code does Django return for a successful form submission?
Q. How are static files managed in Django?
Q. Which command is used to create a new Django project?
Q. What is the use of `csrf_token` in Django templates?
Q. Which of these is NOT a valid Django template tag?
Q. In Django, what does ORM stand for?
Q. Which method is called when a Django model instance is saved?
Q. Which class allows the use of HTML forms tied to Django models?
Q. Which of the following is not a valid status code that Django’s HttpResponse can return?
Q. Which command shows all SQL statements for a migration in Django?
Q. Which file is used to route URLs to views in a Django project?
Q. Which command is used to check for coding issues in a Django project?
Q. Which method retrieves a single object matching a queryset in Django?
Q. Which environment variable tells Django about the settings module?
Q. What is the default file for database settings in Django?
Q. Which of the following methods is used to customize model validation?
Q. Which of the following is NOT a valid database backend supported by Django?
Q. Which of the following is a security feature provided by Django?
Q. Which of these is used to create many-to-many relationships in Django?
Q. Which template tag is used to comment code in Django templates?
Q. Which of the following can be used to send emails in Django?
Q. Which of these is NOT a valid field option in Django models?
Q. What is a queryset in Django?
Q. What is the correct method to render a template in Django?
Q. Which built-in validator checks if two passwords match in Django?
Q. Which class is used for defining a form in Django?
Q. Which of these is a valid Django form field?
Q. What is the correct way to create a superuser in Django?
Q. Which of the following can be used to paginate querysets in Django?
Q. What is the purpose of Django's `Meta` class in models?
Q. Which of the following is used to reverse a URL in Django?
Q. How do you return a 404 error manually in a view?
Q. What is the use of `verbose_name` in Django models?
Q. Which of the following is used to filter querysets in Django?
Q. Which decorator is used to make a function view accept only POST requests?
Q. How do you define a one-to-one relationship in Django?
Q. Which of the following is NOT a valid HTTP method in Django views?
Q. What is the default port Django's development server runs on?
Q. Which template filter converts text to lowercase in Django?
Q. How do you register a model with the admin site?
Q. What is the purpose of `makemigrations` command?
Q. Which Django model method is used to save data to the database?
Q. Which of the following is a template inheritance tag in Django?
Q. Which class-based view is suitable for creating a new object?
Q. In Django, what does `on_delete=models.CASCADE` do?
Q. Which Django command is used to start a new application?
Q. Which template tag is used for conditional logic in Django templates?
Q. Which of these is a valid model relationship field in Django?
Q. What is the purpose of `@login_required` decorator?
Q. Which middleware in Django is responsible for handling sessions?
Q. What is the default name of the configuration class for a Django app?
Q. Which view in Django is used to change the password of a user?
Q. What does `manage.py check` command do?
Q. What is the purpose of `@receiver` decorator in Django?
Q. Which database is used by default in a new Django project?
Q. Which Django signal is triggered before a model is saved?
Q. Which field in Django automatically updates the timestamp when a record is modified?
Q. Which HTTP status code is returned by default when `HttpResponseForbidden` is used?
Q. Which of the following is used to include another template?
Q. How can you protect a Django view from CSRF attacks?
Q. What is the use of `null=True` in Django model fields?
Q. What is the use of `blank=True` in Django model fields?
Q. Which of the following is used to define custom model managers?
Q. How can you enable internationalization in Django?
Q. Which file is required to make a directory a Python package?
Q. Which model field is used to store date and time in Django?
Q. Which management command lists all of the URLs in a Django project?
Q. What is the default primary key field in Django models?
Q. Which of the following is used for debugging SQL queries in Django?
Q. Which command is used to apply migrations to the database?
Q. Which function is used to hash passwords in Django?
Q. Which directive in Django templates is used to load static files?
Q. Which class is used to validate Django forms?
Q. Which field is ideal for storing long text content in Django?
Q. How do you define a custom command in Django?
Q. Which function is used to render templates in Django?
Q. Which of the following is used to cache data in Django?
Q. What is the correct way to import the `HttpResponse` class?
Q. Which environment variable is set to define the Django settings module?
Q. In Django, which is used to group multiple models logically?
Q. Which built-in class helps you create list views in Django?
Q. Which method in a class-based view handles GET requests?
Q. Which file is responsible for routing URLs to views?
Q. What will `{{ value|default:'N/A' }}` do in a template?
Q. Which of the following is used to handle file uploads in Django?
Q. Which signal is triggered just after a model instance is saved?
Q. Which command shows the SQL statements for migrations?
Q. What does the `Meta` class inside a model do?
Q. What does the `reverse()` function in Django do?
Q. Which of the following is used to define the location of static files?
Q. Which method is used to retrieve a single object or raise a 404 error if not found?
Q. How are URL parameters captured in Django?
Q. Which function is used to redirect to another URL in Django?
Q. Which setting is used to enable debugging in Django?
Q. Which of the following is used to return a 404 error in Django?
Q. Which middleware is responsible for CSRF protection?
Q. Which template tag is used for looping in Django templates?
Q. In Django, where are static files like CSS and JS typically placed?
Q. How do you define a one-to-many relationship in Django models?
Q. What will `{{ my_list.0 }}` return in a Django template?
Q. Which of the following is NOT a valid HTTP method Django handles?
Q. Which template tag is used to extend a base template?
Q. Where do you register models to make them accessible in the Django admin?
Q. Which Django command creates an admin user?
Q. Which built-in Django view helps in handling user authentication?
Q. Which of the following is NOT a valid Django field type?
Q. In Django, what is a 'slug' field used for?
Q. Which of the following commands starts the Django development server?
Q. Which method is called when a form is submitted via POST in a Django view?
Q. Which class is used to create a form from a Django model?
Q. Which decorator is used to restrict access to a Django view to authenticated users?
Q. What is the default port Django’s development server runs on?
Q. Django middleware is used for:
Q. Which of the following is a built-in field type in Django models?
Q. In Django, CSRF stands for:
Q. Which of these is used for form handling in Django?
Q. How do you define a URL pattern in Django?
Q. Which function is used in Django models to define a string representation?
Q. Django admin site is enabled by:
Q. Which of these is a Django template tag?
Q. What command is used to create migrations for changes in models?
Q. Which function is used to render HTML in Django views?
Q. Which of the following handles HTML output in Django?
Q. What is the default database used by Django?
Q. Which file contains the list of installed apps in a Django project?
Q. Which Django feature is used for defining database structure?
Q. What is the purpose of Django’s `manage.py` file?
Q. Which command applies migrations to the database?
Q. Which file contains database configuration settings in Django?
Q. Which of the following is the correct command to create a Django app?
Q. Which command is used to start a new Django project?
Q. Which file is used to define URL patterns in a Django project?
Q. What does MTV stand for in Django architecture?
Q. Which programming language is Django based on?
Q. What is Django primarily used for?
Q. What does the 'hdfs dfs -du' command show?
Q. Which of the following does not directly interact with HDFS?
Q. Which language is used to write Pig scripts?
Q. What is the primary responsibility of the ApplicationMaster in YARN?
Q. Which of the following supports ACID transactions in Hadoop?
Q. What is a heartbeat in Hadoop?
Q. Which of the following stores metadata in Hadoop?
Q. In which language is Apache Pig written?
Q. Which scheduler in YARN is best for multi-tenant clusters?
Q. What is the default port for HDFS NameNode web UI?
Q. Which tool is used to interact with Hive using SQL-like queries?
Q. Which of these Hadoop tools is used for log data ingestion?
Q. What happens when you store small files in HDFS?
Q. Which component helps reduce the time taken for shuffling in MapReduce?
Q. What is the function of Oozie in the Hadoop ecosystem?
Q. Which of the following file formats is best for columnar storage in Hadoop?
Q. What does HDFS do when a DataNode fails?
Q. What type of data model does HBase use?
Q. Which component is responsible for launching containers in YARN?
Q. Which protocol does HDFS use for communication between NameNode and DataNodes?
Q. What is the purpose of 'yarn-site.xml'?
Q. Which of these is a scheduling algorithm used in YARN?
Q. Which command is used to copy files from local to HDFS?
Q. Which of the following is a metadata store used by Hive?
Q. What does the 'mapred.job.tracker' property specify?
Q. Which is true about HDFS data replication?
Q. What is the primary language used to write Hadoop's core components?
Q. What is speculative execution in Hadoop?
Q. Which of these is a row-based file format in Hadoop?
Q. What is the function of 'YARN' in Hadoop?
Q. Which daemon in Hadoop YARN allocates resources to various applications?
Q. What does the 'combiner' function in MapReduce help with?
Q. Which of the following is used for in-memory data processing in the Hadoop ecosystem?
Q. Which of the following tools can be used for near real-time data processing with Hadoop?
Q. What is the role of the 'fsck' command in Hadoop?
Q. Which configuration file in Hadoop contains the core system settings?
Q. What is the default block size in HDFS (Hadoop 2.x and above)?
Q. Which of the following is NOT a valid mode of Hadoop operation?
Q. Which of the following tools is best suited for moving data from MySQL to Hadoop?
Q. What is the primary purpose of the Secondary NameNode in Hadoop?
Q. What is the default file replication factor in HDFS?
Q. Which of the following is used to define dependencies in Oozie workflows?
Q. Which of the following is true about Hadoop scalability?
Q. Which Hadoop tool is used for data cleansing and transformation?
Q. Which of the following handles user authentication in Hadoop?
Q. What kind of data is best suited for processing by Hadoop?
Q. Which of these is true about the Hadoop distributed cache?
Q. In Hadoop, what is the function of 'input split'?
Q. Which component in Hadoop handles the actual execution of a MapReduce job?
Q. Which of the following file formats is optimized for reading large volumes of data in Hadoop?
Q. Which of the following is a benefit of Hadoop's distributed architecture?
Q. What is the output format of a typical MapReduce job?
Q. Which of these is a NoSQL database in the Hadoop ecosystem?
Q. What does the term 'rack awareness' refer to in Hadoop?
Q. Which command in Hadoop is used to delete a file in HDFS?
Q. Which of the following is NOT a Hadoop ecosystem component?
Q. Which of the following is used for data serialization in Hadoop?
Q. What is the purpose of the 'hdfs dfsadmin -safemode get' command?
Q. Which daemon in Hadoop is responsible for managing the file system namespace?
Q. Which of the following is a fault-tolerant, scalable, and distributed storage system in Hadoop?
Q. What is the use of 'mapred-site.xml' in Hadoop?
Q. Which daemon in Hadoop maintains the job tracker functionality in YARN?
Q. Which tool is used to monitor cluster health in Hadoop?
Q. Which of the following stores columnar data for fast analytics in Hadoop?
Q. Which is not a valid HDFS command?
Q. Which Hadoop component translates SQL queries into MapReduce jobs?
Q. What is a block in HDFS typically replicated to?
Q. Which command lists the content of an HDFS directory?
Q. What happens when a block is corrupted in HDFS?
Q. Which format is commonly used for storing MapReduce output?
Q. Which file system does Hadoop use to store its data?
Q. In YARN, what is the function of NodeManager?
Q. Which port does ResourceManager typically run on?
Q. Which statement is true about NameNode?
Q. How does HDFS ensure fault tolerance?
Q. Which of the following helps in streaming real-time data into Hadoop?
Q. What is the main responsibility of a DataNode?
Q. Which Hadoop ecosystem tool is suitable for workflow scheduling?
Q. What is the function of the HDFS fsimage file?
Q. Which scripting language is used in Apache Pig?
Q. What is a rack-aware Hadoop cluster?
Q. In Hadoop, where are intermediate results stored during MapReduce?
Q. What happens if the NameNode fails and there's no backup?
Q. What does 'dfs' stand for in 'hdfs dfs'?
Q. Which command moves a file in HDFS?
Q. Which component handles resource allocation in YARN?
Q. Which tool in Hadoop can be used for ETL operations?
Q. Which file contains Hadoop core configuration?
Q. Which component allows task monitoring in Hadoop?
Q. Which of the following is true about Hadoop MapReduce?
Q. Which process in Hadoop creates checkpoints of file system metadata?
Q. What does speculative execution in Hadoop do?
Q. Which tool is used to transfer bulk data between Hadoop and RDBMS?
Q. What is the role of Apache ZooKeeper in Hadoop?
Q. Which command copies a file from HDFS to the local file system?
Q. Which of these components no longer exists in YARN-based Hadoop 2.x?
Q. Which component handles user-submitted applications in YARN?
Q. What does the command 'hdfs dfsadmin -report' provide?
Q. What is the default block size in HDFS (Hadoop 2.x)?
Q. Which of the following is used to execute SQL-like queries in Hadoop?
Q. Which of the following is true about the Secondary NameNode?
Q. Which of the following tools helps monitor Hadoop clusters?
Q. Which component is used for log processing in Hadoop?
Q. What is the purpose of the hadoop-env.sh file?
Q. What does the command 'hadoop version' show?
Q. Which component acts as a master in YARN architecture?
Q. Which command is used to check disk usage in HDFS?
Q. Which command is used to delete a file from HDFS?
Q. Which feature allows Hadoop to recover from hardware failure?
Q. What is the purpose of the Combiner in MapReduce?
Q. Which mode allows Hadoop to run on a single node for testing?
Q. Which of the following is true about HDFS?
Q. Which file format is optimized for Hadoop processing?
Q. What is the default port for Hadoop NameNode web UI?
Q. What does the Reduce phase in MapReduce do?
Q. Which of the following is a benefit of Hadoop?
Q. What is the role of JobTracker in Hadoop 1.x?
Q. Which command is used to put a file into HDFS?
Q. Which file stores configuration settings in Hadoop?
Q. What is the function of the Secondary NameNode?
Q. Which of the following provides coordination and synchronization services in Hadoop?
Q. Which daemon in Hadoop runs on the slave node and handles tasks?
Q. Which is a high-level scripting language for Hadoop data analysis?
Q. Which tool is used to define workflows in Hadoop?
Q. What does the 'Map' function do in MapReduce?
Q. Which scheduler is used by default in Hadoop YARN?
Q. Which of the following ensures fault tolerance in Hadoop?
Q. Which command is used to list files in HDFS?
Q. What happens when a DataNode fails in HDFS?
Q. Which of the following is a NoSQL database that integrates with Hadoop?
Q. Which Hadoop component is used for importing data from relational databases?
Q. Which of the following is NOT a part of the Hadoop ecosystem?
Q. What does MapReduce do in Hadoop?
Q. Which tool in the Hadoop ecosystem is used for data warehousing?
Q. Which Hadoop component is responsible for storing the actual data?
Q. What is the function of the NameNode in HDFS?
Q. Which language is primarily used for writing Hadoop applications?
Q. In Hadoop, data is broken into blocks. What is the default block size?
Q. What is the name of the Hadoop component responsible for resource management?
Q. Which programming model does Hadoop use?
Q. Which of the following is the core component of Hadoop?
Q. What is Hadoop primarily used for?
Q. What is the role of an API gateway in cloud architecture?
Q. Which cloud service would you use for real-time chat application backend?
Q. Which Azure service is used for identity and access management?
Q. Which component allows isolation within a cloud environment?
Q. What is a major risk associated with cloud computing?
Q. Which of the following is a benefit of cloud load balancers?
Q. Which AWS service allows notifications based on certain conditions?
Q. What is the main goal of disaster recovery in cloud computing?
Q. Which Google Cloud product is used for serverless execution?
Q. Which of the following is an example of cloud storage?
Q. Which service would you use for auto-scaling in AWS?
Q. Which of the following does PaaS provide?
Q. Which service in cloud is used for content delivery?
Q. Which is a popular open-source cloud management platform?
Q. Which type of storage is best suited for archiving in the cloud?
Q. Which of the following is a database service in AWS?
Q. Which is NOT a cloud deployment model?
Q. What does 'multi-tenancy' mean in cloud computing?
Q. Which of these is a cloud service model focused on developers?
Q. Which of the following is a key benefit of cloud computing?
Q. Which of the following services is used to transfer large amounts of data to AWS?
Q. Which AWS service helps to define Infrastructure as Code?
Q. What does VPC stand for in AWS?
Q. Which of the following is used for real-time data streaming in AWS?
Q. Which service allows large data sets processing in AWS?
Q. Which of the following ensures encryption during data transmission in the cloud?
Q. Which is a cloud-based IDE?
Q. Which cloud provider offers 'Cloud Functions' as serverless service?
Q. Which protocol is commonly used to manage virtual machines in the cloud?
Q. Which storage type provides block-level storage in AWS?
Q. Which of these AWS services is used for monitoring?
Q. Which cloud service type is Google App Engine?
Q. Which tool is used for container orchestration in the cloud?
Q. Which of these services is used for object lifecycle management in AWS?
Q. What is the purpose of cloud orchestration?
Q. Which platform provides serverless computing in Azure?
Q. In which deployment model do organizations share cloud infrastructure?
Q. Which of the following is not a characteristic of cloud computing?
Q. Which AWS service provides DNS management?
Q. Which service model abstracts the hardware layer completely?
Q. Which of the following cloud platforms is by IBM?
Q. What does scalability mean in cloud computing?
Q. Which service allows large-scale object storage in AWS?
Q. Which of the following is an example of FaaS?
Q. Which of the following is responsible for delivering software over the web?
Q. What does cloud bursting mean?
Q. Which of these services falls under IaaS?
Q. Which type of cloud is shared by multiple organizations with common goals?
Q. Which one of these is not a core feature of cloud computing?
Q. Which AWS service is used for database hosting?
Q. Which layer in cloud computing deals with data storage and compute power?
Q. Which of the following can be used to deploy applications on AWS?
Q. What does the term 'serverless' mean in cloud computing?
Q. Which company offers Azure cloud services?
Q. Which tool is used for automating cloud infrastructure?
Q. Which of the following is NOT a deployment model of cloud computing?
Q. Which service model offers complete software solutions to end-users?
Q. Which of these is a private cloud platform?
Q. Which term best describes cloud computing resources that are dynamically allocated?
Q. What is a key benefit of using cloud services for startups?
Q. Which cloud feature allows usage tracking and billing?
Q. Which technology enables running multiple OS on one physical machine?
Q. What type of service is AWS S3?
Q. Which cloud deployment model is used for sensitive data?
Q. Which of these is a cloud monitoring tool?
Q. What is multi-tenancy in cloud computing?
Q. Which cloud provider offers 'Elastic Beanstalk'?
Q. Which of the following refers to managing cloud infrastructure using code?
Q. Cloud services are typically delivered via what model?
Q. Which of the following is a security concern in cloud computing?
Q. Which service allows event-driven serverless computing?
Q. Which service helps to store files in the cloud?
Q. Which of the following is a type of cloud service model?
Q. What is elasticity in cloud computing?
Q. Which one of these is a PaaS provider?
Q. What is the main feature of public cloud?
Q. Which of the following companies provides Google Cloud Platform?
Q. Which of the following is NOT a benefit of cloud computing?
Q. Which of the following cloud providers offers Azure?
Q. What does 'serverless computing' mean?
Q. What is the term for moving applications to the cloud?
Q. Which of the following is a major security concern in cloud computing?
Q. Which protocol is commonly used to access cloud-based files?
Q. What does the 'scalability' of a cloud system mean?
Q. What is a common billing model for cloud services?
Q. Which of the following ensures high availability in cloud computing?
Q. Which is NOT an advantage of cloud storage?
Q. Which is an open-source cloud computing platform?
Q. Which of the following provides container orchestration in the cloud?
Q. Which cloud service offers functions as a service?
Q. What does the term 'multi-tenancy' refer to?
Q. Which one is NOT a characteristic of cloud computing?
Q. What is the purpose of a hypervisor in cloud computing?
Q. Which of the following is an example of IaaS?
Q. Which of the following is used to manage cloud resources?
Q. Which is *not* a common cloud deployment model?
Q. Which of the following cloud types is best for government organizations?
Q. What is the main benefit of virtualization in cloud computing?
Q. Which of these is a key characteristic of cloud computing?
Q. Cloud computing allows users to access services via which model?
Q. Which of these is a type of cloud service delivery model?
Q. Which one is a platform as a service (PaaS)?
Q. Which service offers virtual machines in cloud?
Q. Which of the following is a private cloud provider?
Q. Which cloud model combines public and private clouds?
Q. Which term refers to the ability to grow and shrink computing resources on demand?
Q. Cloud computing is based on which technology?
Q. Which of the following is not a feature of cloud computing?
Q. Which is the most basic cloud service model?
Q. Which of the following is a benefit of cloud computing?
Q. Which cloud deployment model provides services to the general public?
Q. Which layer in cloud computing provides runtime environment?
Q. Which of the following is an example of SaaS?
Q. Which company is not a cloud service provider?
Q. Which of the following is a cloud service model?
Q. Which method creates a new DOM element?
Q. Which method adds a new class to an element?
Q. Which method can be used to change the content of an HTML element?
Q. What does the window object represent?
Q. Which object is used to manipulate the HTML document?
Q. Which DOM method returns the first element that matches a selector?
Q. Which DOM method selects an element by its ID?
Q. How can you defer script execution until the DOM is loaded?
Q. What is the main thread in JavaScript?
Q. Which function is used to delay execution of code by a given time?
Q. Which JavaScript property refers to the element that triggered the event?
Q. Which method stops event propagation in the DOM?
Q. Which method is used to prevent the default action of an event?
Q. Which method is used to add an event listener in JavaScript?
Q. What is the role of clearTimeout()?
Q. What does setInterval() do?
Q. Which has higher priority in JavaScript event loop?
Q. Which queue does setTimeout use?
Q. What is the event loop in JavaScript?
Q. Which method ensures code runs regardless of Promise result?
Q. How do you catch both resolved and rejected states of a Promise?
Q. Which feature allows defining class-level methods?
Q. What is the result of 2 + '2'?
Q. What will console.log(typeof []) return?
Q. Which object method executes a reducer function on each element?
Q. Which of the following is NOT a valid JavaScript class feature?
Q. What will be the result of await Promise.reject('error') in async function?
Q. What will be the output of: typeof Promise?
Q. Which method is automatically called when a new object is created?
Q. How do you create an instance of a class?
Q. Which keyword is used to define a class in JavaScript?
Q. Which JavaScript feature allows function to access variables from an outer scope?
Q. What is the purpose of the await keyword?
Q. What is the purpose of async keyword in JavaScript?
Q. Which method is used to handle errors in Promises?
Q. Which method is used to handle a resolved Promise?
Q. What is the default state of a JavaScript Promise?
Q. What does a JavaScript Promise represent?
Q. Which statement is used to exit a function early?
Q. What does the 'new' keyword do?
Q. How do you check if an object has a specific property?
Q. Which method combines two or more arrays?
Q. What is the output of typeof null?
Q. What is the result of null == undefined?
Q. Which method removes the last element from an array?
Q. Which property gives the number of elements in an array?
Q. How do you create an object in JavaScript?
Q. Which operator checks both value and type?
Q. Which method is used to round a number down to the nearest integer?
Q. What is the purpose of the 'use strict' directive?
Q. Which method tests whether at least one element passes a test?
Q. Which method returns the first element that satisfies a testing function?
Q. Which symbol is used for nullish coalescing in JavaScript?
Q. Which of the following can be used to stop a setInterval?
Q. What does the 'typeof' operator return for a function?
Q. Which built-in object is used for mathematical operations?
Q. Which value is not equal to itself in JavaScript?
Q. Which method is used to loop over an array and create a new array with the results?
Q. What is the default return value of a function that doesn't return anything?
Q. Which method is used to add an element to the beginning of an array?
Q. Which symbol is used to spread an array?
Q. Which method can be used to join array elements into a string?
Q. What will be the result of '5' + 2?
Q. How do you write a comment that spans multiple lines?
Q. What will be the output of Array.isArray([])?
Q. Which of these is not a falsy value?
Q. Which built-in method parses a string to an integer?
Q. What will be the output of typeof NaN?
Q. Which operator is used for exponentiation in JavaScript?
Q. What will be the output of 0 == '0'?
Q. Which keyword is used to handle exceptions in JavaScript?
Q. What does the 'this' keyword refer to in a method of an object?
Q. Which symbol is used for optional chaining?
Q. What will typeof [] return?
Q. Which of the following is a correct way to define an arrow function?
Q. What does the filter() method do?
Q. Which of these is used for debugging JavaScript code?
Q. Which of the following is a valid way to create a new array?
Q. Which method removes the first element from an array?
Q. Which method adds elements to the end of an array?
Q. Which method is used to convert an object to a JSON string?
Q. Which keyword is used to create a class in JavaScript?
Q. Which function returns the length of a string?
Q. Which of the following is a looping structure in JavaScript?
Q. Which method can be used to extract a section of a string?
Q. Which of the following is used to declare a constant in JavaScript?
Q. Which symbol is used for single-line comments in JavaScript?
Q. What does the isNaN() function do?
Q. Which object in JavaScript is the global object for client-side scripts?
Q. What will be the output of '2' * 3 in JavaScript?
Q. Which function converts a number to a string?
Q. What does Math.floor(4.7) return?
Q. Which method returns the character at a specified index in a string?
Q. Which operator is used to assign a value to a variable?
Q. What does the eval() function do?
Q. Which of these methods can be used to convert a string to uppercase?
Q. Which of these is NOT a JavaScript data type?
Q. Which built-in object can be used to handle dates and times?
Q. What will be the result of Boolean('')?
Q. Which method removes elements from an array and can insert new elements?
Q. Which operator checks both value and type in JavaScript?
Q. Which built-in method reverses the order of the elements of an array?
Q. Which statement is used to stop the execution of a function and return a value?
Q. What is the output of typeof null in JavaScript?
Q. Which loop will always execute the block of code at least once?
Q. Which function is used to sort the elements of an array?
Q. Which method is used to find the index of the first occurrence of a value in an array?
Q. Which symbol is used to denote comments in JavaScript?
Q. Which of the following is used to detect the type of a variable?
Q. What is the output of 2 ** 3 in JavaScript?
Q. Which object is used to access the HTML elements in the DOM?
Q. What does the break statement do in a loop?
Q. Which keyword is used to define a block-scoped variable?
Q. How can you declare a variable globally inside a function?
Q. Which function is used to execute a function once after a delay?
Q. What will be the output of '5' + 2 in JavaScript?
Q. Which method can be used to convert a JSON string into a JavaScript object?
Q. What is the use of the includes() method in JavaScript?
Q. Which value is considered falsy in JavaScript?
Q. Which method is used to remove the last element of an array?
Q. What is the use of the slice() method in arrays?
Q. Which method adds one or more elements to the beginning of an array?
Q. What does the push() method do?
Q. Which keyword prevents a variable from being reassigned?
Q. Which of the following is a primitive data type in JavaScript?
Q. Which statement defines a constant variable?
Q. Which method checks if all elements in an array pass a test?
Q. What is the default behavior of the sort() method?
Q. What is the output of typeof Infinity?
Q. Which operator returns true if two values are not equal?
Q. What will 'apple'.length return?
Q. How can you write an arrow function?
Q. Which array method removes the first element?
Q. Which function is used to delay code repeatedly at intervals?
Q. What does the map() method do?
Q. Which of the following is not a loop in JavaScript?
Q. Which symbol is used to spread elements in JavaScript?
Q. What is the result of Boolean(0)?
Q. What will be the output of '10' - 2?
Q. Which method converts an object to a JSON string?
Q. Which keyword is used to inherit a class?
Q. What is a closure in JavaScript?
Q. How do you define a class in JavaScript?
Q. What will be the output of typeof function(){}?
Q. Which method is used to filter elements in an array?
Q. What is the value of null == undefined?
Q. Which symbol is used to create a template literal?
Q. Which event is triggered when a user clicks on an HTML element?
Q. Which function is used to check if a value is not a number?
Q. Which operator is used to assign a value?
Q. What will console.log(0.1 + 0.2 == 0.3) print?
Q. What does the 'this' keyword refer to in a regular function?
Q. What is the output of Boolean('false')?
Q. Which function parses a string and returns an integer?
Q. Which method joins array elements into a string?
Q. Which loop is guaranteed to run at least once?
Q. What will be the result of typeof []?
Q. Which object represents the browser window in JavaScript?
Q. Which function is used to round a number down?
Q. How do you write a multi-line comment in JavaScript?
Q. Which operator is used to compare both value and type?
Q. What is the default value of an uninitialized variable in JavaScript?
Q. Which keyword is used to define a function in JavaScript?
Q. Which method returns the index of the first occurrence of a value in an array?
Q. Which keyword is used to define a constant in JavaScript?
Q. What is the output of 1 + '2' + 3?
Q. How do you write a conditional statement in JavaScript?
Q. Which of the following is a JavaScript framework?
Q. Which function is used to delay code execution?
Q. What is the correct way to create an array?
Q. Which method is used to convert a number to a string?
Q. What is the output of typeof NaN?
Q. What is the result of 2 == '2'?
Q. Which method removes the last element of an array?
Q. Which keyword declares a block-scoped variable?
Q. Which function is used to print something to the console?
Q. Which of the following is not a primitive data type in JavaScript?
Q. What is the result of '5' + 3 in JavaScript?
Q. Which method converts a JSON string into a JavaScript object?
Q. Which method adds an element to the end of an array?
Q. What will be the output of typeof null?
Q. Which symbol is used for comments in JavaScript?
Q. Which company developed JavaScript?
Q. What will echo 2 ** 3; return?
Q. What is the scope of a variable declared outside a function?
Q. What is the output of 10 + '5' in PHP?
Q. Which of the following can be used to sort an associative array in ascending order by value?
Q. Which method sends raw binary data to the output buffer?
Q. Which function is used to generate a unique ID in PHP?
Q. Which of the following functions can be used to format a number?
Q. Which one is a valid way to define a constant?
Q. Which function is used to list all defined variables?
Q. Which operator is used to access properties or methods of an object?
Q. Which function is used to unserialize a serialized string?
Q. Which function is used to serialize a value in PHP?
Q. Which magic constant contains the full path and filename of the file?
Q. Which of the following functions is used to read a file into an array?
Q. What is the output of echo strlen('PHP');?
Q. Which of the following functions can be used to sort an array in reverse order?
Q. Which of the following is used to get the type of a variable?
Q. Which function is used to end output buffering and flush the output buffer?
Q. Which keyword is used to declare a constant in PHP?
Q. Which operator is used for error control in PHP?
Q. Which of the following functions returns the ASCII value of a character?
Q. Which function is used to split a string into an array by a regular expression?
Q. Which of the following is NOT a PHP comparison operator?
Q. Which of the following is used to check if a variable is set?
Q. What does the PHP function unset() do?
Q. How do you access the current session ID?
Q. Which function is used to start a session?
Q. Which superglobal contains data submitted through forms using POST?
Q. Which function is used to replace all occurrences of a search string with a replacement?
Q. What will be the output of strpos('hello', 'e')?
Q. Which function can be used to reverse an array?
Q. Which error type is not caught by a try-catch block in PHP?
Q. What will be the result of 3 === '3'?
Q. Which of the following is not a PHP loop structure?
Q. What will be the output of is_array('string')?
Q. Which function is used to redirect to another page?
Q. What does the die() function do?
Q. Which function is used to destroy a session?
Q. Which function is used to set a cookie in PHP?
Q. Which function is used to convert a JSON string into a PHP variable?
Q. Which function is used to convert an array to a JSON string?
Q. How do you terminate a PHP script?
Q. Which function is used to send an email using PHP?
Q. Which function is used to remove whitespace from both sides of a string?
Q. Which function can be used to escape special characters in a string for use in SQL?
Q. Which function is used to round a number to the nearest integer in PHP?
Q. What will echo 5 % 2; return?
Q. Which keyword is used to define an interface in PHP?
Q. What will be the output of var_dump(null == false)?
Q. Which function is used to include and execute a PHP file only once?
Q. Which function is used to convert a string into an array?
Q. What will be the output of strlen('PHP')?
Q. Which function is used to check if a file is readable?
Q. Which function returns the type of a variable?
Q. What does the function is_numeric() return for '123'?
Q. What will be the output of print_r(array('a', 'b', 'c'))?
Q. What is the default visibility for class members in PHP?
Q. Which of the following is used to get environment variables?
Q. What will echo '5' + '5'; output?
Q. Which of these can be used to define multiple constants at once?
Q. Which magic constant contains the full path of the current file?
Q. What is the function of error_reporting(0)?
Q. Which keyword is used to inherit a class in PHP?
Q. How do you define a namespace in PHP?
Q. Which of the following starts output buffering?
Q. Which method is used to retrieve the current working directory?
Q. What is the result of === in PHP?
Q. Which of these is not a valid PHP data type?
Q. What will be the output of echo 10 == '10';?
Q. Which function is used to check if a file exists in PHP?
Q. Which function is used to get a list of all defined variables?
Q. Which statement correctly defines a constant?
Q. Which function gets the current line number of a file handle?
Q. What is the output of intval('42abc')?
Q. Which function is used to replace all occurrences of a string?
Q. Which function is used to read a complete file into a string?
Q. Which function is used to create a URL-encoded string?
Q. What is the purpose of session_start()?
Q. What does header('Location: url') do in PHP?
Q. What will empty('0') return?
Q. What does $_FILES superglobal hold?
Q. Which function is used to remove HTML and PHP tags from a string?
Q. Which function is used to remove the last element of an array?
Q. Which superglobal is used to get cookies?
Q. Which operator is used for string concatenation in PHP?
Q. What is the result of casting 'hello' to an integer in PHP?
Q. What will the expression '2' + '3abc' return in PHP?
Q. Which function returns the number of elements in an array?
Q. What is the purpose of the 'clone' keyword in PHP?
Q. What does the 'final' keyword do in a PHP method?
Q. Which keyword is used to implement an interface in PHP?
Q. Which operator is used to assign by reference?
Q. Which of the following is NOT a PHP error type?
Q. Which method is automatically called when an object is created?
Q. Which of the following is used to stop script execution in PHP?
Q. What will be the output of print 5 + '5 cars'?
Q. Which of the following is used to add an element at the beginning of an array?
Q. What does the 'public' keyword in a class define?
Q. Which function converts special characters to HTML entities?
Q. Which keyword is used to declare a class in PHP?
Q. Which function is used to sort an associative array in ascending order, according to the value?
Q. What is the correct way to start a PHP block?
Q. Which function is used to check if a variable is an array?
Q. Which function returns an array of keys from an array?
Q. What does isset() return if a variable is not set?
Q. What will be the result of strpos('Hello World', 'World')?
Q. What is the default method used by forms if not specified?
Q. Which of the following is used to destroy a session in PHP?
Q. What does the explode() function do in PHP?
Q. Which function is used to include and evaluate a file in PHP?
Q. What does the 'children' prop represent in React?
Q. Which command creates a new React application using Create React App?
Q. What does the useEffect hook’s cleanup function do?
Q. What is the purpose of the useReducer hook?
Q. How do you handle errors in React components?
Q. What is the difference between React.Component and React.PureComponent?
Q. Which React feature helps improve performance by preventing unnecessary re-renders?
Q. What is the significance of the dependency array in useEffect?
Q. Which of the following hooks is used to manage state in functional components?
Q. What is the role of the Context API in React?
Q. How do you create a controlled component in React?
Q. What does the ReactDOM.render() method do?
Q. What is the purpose of keys in React lists?
Q. How can you optimize performance in React when passing functions to child components?
Q. What is the use of the useCallback hook?
Q. How do you update the state in React functional components?
Q. Which lifecycle method is called when a component is first added to the DOM in class components?
Q. How can you force a re-render in a functional component?
Q. What is the default value of useState when not provided?
Q. Which hook can be used to access the previous value of a prop or state?
Q. In React, which statement about props is correct?
Q. Which of these is a way to handle events in React?
Q. What is reconciliation in React?
Q. Which attribute is used to specify inline styles in React?
Q. What does React.Fragment help you do?
Q. Which hook would you use to perform side effects such as data fetching in functional components?
Q. How do you create a context in React?
Q. What is the primary role of React Router in React applications?
Q. Which method in React class components can be used to update the state?
Q. What is the purpose of the useRef hook?
Q. How do you pass data from a child component to a parent component in React?
Q. What is the purpose of the React.StrictMode component?
Q. What is the main benefit of using useMemo hook?
Q. Which of the following is NOT true about React hooks?
Q. What is the React DevTools used for?
Q. What does 'lifting state up' help to solve in React?
Q. What will happen if a React component returns false in its render method?
Q. Which of these hooks can replace both useState and useReducer in certain scenarios?
Q. What is the difference between useEffect and useLayoutEffect?
Q. Which of the following is a feature of React?
Q. What is the purpose of the useCallback hook?
Q. What is the correct syntax to create a React Fragment?
Q. Which React feature helps avoid prop drilling?
Q. What does the term 'prop drilling' mean in React?
Q. How can you optimize performance by avoiding unnecessary re-renders in React?
Q. What is the difference between controlled and uncontrolled components in React?
Q. Which of these is NOT a valid way to create a React component?
Q. How can you prevent a component from rendering in React?
Q. What is the purpose of the useReducer hook in React?
Q. What hook would you use to manage state in a functional component?
Q. What will happen if you update the state directly without using setState in a class component?
Q. How can you pass a function as a prop in React?
Q. What does the React.StrictMode component do?
Q. How do you update state in a class component?
Q. Which React hook lets you optimize expensive calculations by caching their results?
Q. What is the main difference between props and state?
Q. Which hook should you use to access the previous state value?
Q. What is the correct way to handle events in React?
Q. How can you memoize a React component to avoid unnecessary re-renders?
Q. Which method is used to convert JSX to React elements?
Q. What is the significance of keys when rendering lists in React?
Q. What is the default behavior of setState in class components?
Q. What does the 'useRef' hook do?
Q. Which React hook is used to access the context value?
Q. What is a higher-order component (HOC) in React?
Q. How do you access props in a functional React component?
Q. Which of the following is true about React Context API?
Q. What hook would you use to perform side effects in functional components?
Q. What is the primary purpose of the React key prop?
Q. Which of these is NOT a feature of React?
Q. What happens if a component returns null?
Q. What is the recommended way to handle forms in React?
Q. How do you pass data from a child component to a parent component?
Q. Which tool helps to inspect React component hierarchies in browser?
Q. Which lifecycle method is deprecated in React 17?
Q. How can you optimize a React component to prevent unnecessary re-renders?
Q. What does the React.Fragment component do?
Q. Which of these is a controlled component in React?
Q. Which package is typically used to enable routing in React applications?
Q. Which of these hooks is used for complex state logic or multiple related states?
Q. What is the correct way to update state based on the previous state?
Q. How do you conditionally render a component in React?
Q. What will the following JSX compile to? <div>Hello, {name}</div>
Q. Which is a valid way to apply inline styles in React?
Q. How do you prevent a form submission from refreshing the page in React?
Q. Which hook is used to manage local state in functional components?
Q. Which component should wrap your app to use Context API?
Q. Which method allows performing side effects in functional components?
Q. What type of architecture does React use?
Q. Which attribute must be used with lists in React?
Q. Which method is used to return multiple elements without a parent node?
Q. What is the purpose of React.StrictMode?
Q. How can React improve SEO for single-page applications?
Q. Which tool is commonly used with React to build UIs faster?
Q. Which of these hooks is useful for referencing a DOM node?
Q. Which file contains the root React component by default?
Q. What happens if you call setState() inside render()?
Q. Which of the following is used for global state management in React?
Q. Which of the following can cause a React component to re-render?
Q. In which lifecycle method is it safe to set state in a class component?
Q. Which command is used to create a new React application?
Q. What does React use to improve performance?
Q. How do you forward a ref to a child component in React?
Q. Which hook is used to manage complex state logic in React?
Q. Which method can be used to handle errors in React class components?
Q. What is `React.memo` used for?
Q. What does `ReactDOM.hydrate` do?
Q. How do you prevent a component from re-rendering?
Q. Which of these is NOT true about React?
Q. How is `props.children` used in React?
Q. Which hook would you use to share logic across multiple components?
Q. What is the role of the `key` prop in React?
Q. What is the benefit of using `React.Fragment`?
Q. What is the default behavior of a form submission in React?
Q. Which of the following is true about JSX?
Q. Which React method is used to update the UI when state changes in class components?
Q. How do you pass props to a component in React?
Q. What does `useMemo` do in React?
Q. Which hook is used to memoize a function in React?
Q. Which statement is true about React keys?
Q. How do you ensure a component only mounts once with a side-effect?
Q. What is the purpose of `shouldComponentUpdate`?
Q. What is the recommended place to fetch data in a class component?
Q. What is the role of `key` in React lists?
Q. What does `ReactDOM.createPortal` do?
Q. What will happen if you call `setState` inside `render()`?
Q. In which hook can you initialize state from props?
Q. What is `forwardRef` used for in React?
Q. What does `useImperativeHandle` do?
Q. Which lifecycle method is invoked after a component is removed from the DOM?
Q. What is the purpose of `propTypes` in React?
Q. Which of these allows dynamic import in React?
Q. What will happen if two React components have the same key in a list?
Q. What is the purpose of `defaultProps` in React?
Q. What does 'lifting state up' mean in React?
Q. How can we optimize performance for a large list in React?
Q. Which of the following is used to handle side effects in React functional components?
Q. What is a pure component in React?
Q. Which hook would you use to share logic between components?
Q. In React, what is reconciliation?
Q. What is the purpose of `useLayoutEffect`?
Q. How do you create context in React?
Q. What does `useCallback` hook do?
Q. What is the correct way to create a component in React?
Q. Which React component lifecycle method is called before rendering?
Q. Which hook is best for accessing DOM elements directly?
Q. What will `useEffect(() => {}, [])` do?
Q. How do you pass data from parent to child component in React?
Q. Which of the following is used for performance optimization in React?
Q. How many elements can a React component return?
Q. Which method is used to change the state in a React class component?
Q. What is the main advantage of using keys in React lists?
Q. Which attribute is used in React to give CSS classes?
Q. Which of the following is not a valid React hook?
Q. What does JSX stand for in React?
Q. What does `defaultValue` do in input elements?
Q. What happens if you try to render an array in JSX?
Q. How does React achieve better performance?
Q. What is the return type of a functional component?
Q. Which is true about props in React?
Q. What is the purpose of `useMemo`?
Q. What is a controlled component?
Q. What does `React.StrictMode` do?
Q. Which of the following hooks is used to persist values across renders without causing re-renders?
Q. Which React method is used to clean up resources in a component?
Q. What is `useReducer` typically used for?
Q. What is the role of the `key` prop in lists?
Q. What is React's virtual DOM?
Q. Which component in React Router is used to define a route?
Q. What is the primary purpose of React Router?
Q. What does the second value returned by useState represent?
Q. Which hook is used to manage state in functional components?
Q. What happens if you update state directly in React?
Q. What does `ReactDOM.render()` do?
Q. What is the default behavior of React's `useEffect` without a dependency array?
Q. Which attribute is required when using map to render lists?
Q. Which hook allows you to share logic between components?
Q. What is the correct syntax to pass a function as a prop?
Q. Which one is a correct way to create a functional component?
Q. What is the difference between useMemo and useCallback?
Q. Which of the following is true about useRef?
Q. What is a React Fragment used for?
Q. Which React feature helps break the UI into independent pieces?
Q. How do you handle forms in React?
Q. What happens when setState is called?
Q. What is the role of a key in a list of elements?
Q. What is the main benefit of using React?
Q. Which hook helps you prevent unnecessary function recreation?
Q. What happens if you use the same key for elements in a list?
Q. Which hook replaces lifecycle methods in functional components?
Q. How many root elements can a React component return?
Q. What does lifting state up mean in React?
Q. Which method is used to pass props to a component?
Q. What is JSX?
Q. How do you pass data from a child to a parent component?
Q. What is returned by the useState hook?
Q. Which hook should you use to manage complex state logic?
Q. What is the key difference between props and state in React?
Q. What will happen if a hook is used inside a conditional statement?
Q. Which of these is used to style React components?
Q. What is the default port for React development server?
Q. How can we prevent a component from re-rendering?
Q. Which command is used to start a React app in development mode?
Q. What does a React component return?
Q. What is the output of React.createElement?
Q. What will happen if you modify state directly in React?
Q. Which of these is not a valid React event?
Q. In JSX, how do you write a JavaScript expression?
Q. Which lifecycle method is equivalent to useEffect with an empty dependency array?
Q. Which hook allows you to access the DOM element directly?
Q. Which of the following will NOT cause a component to re-render?
Q. What is the main purpose of useEffect in React?
Q. Which tag is necessary to wrap multiple elements in JSX?
Q. Which of the following is used to install React?
Q. How can you conditionally render a component in React?
Q. Which of the following is a valid custom hook name?
Q. What is the role of defaultProps in React?
Q. What will happen if you forget to include a key in a list item?
Q. Which statement is true about state in React?
Q. Which React hook is used to store and persist a reference across renders?
Q. Which hook is used to memoize a callback function in React?
Q. Which of the following best describes React?
Q. Which package is commonly used for form handling in React?
Q. What is React Router used for?
Q. When using useEffect with an empty dependency array, how often does it run?
Q. How do you pass a function as a prop in React?
Q. Which of the following is true about React keys in a list?
Q. What is a controlled component in React?
Q. What is the default behavior of React when state changes?
Q. What is the purpose of useContext in React?
Q. Which of the following is NOT a React hook?
Q. Which method is used to update state in a class component?
Q. What does React.StrictMode do?
Q. In which file is the root React component typically rendered?
Q. Which hook should be used to avoid re-creating functions on every render?
Q. What does the useMemo hook do?
Q. What is the use of Fragment in React?
Q. Which statement about props is correct?
Q. Which of the following correctly describes React's data flow?
Q. Which React hook is best suited for managing complex state logic?
Q. Which of these is a valid way to pass props to a component?
Q. What does the 'key' prop help React identify?
Q. How can props be made optional in a functional component?
Q. What will happen if you change the state directly without setState or useState?
Q. Which of the following is true about React keys?
Q. What is the second argument of useEffect used for?
Q. What does the useEffect hook return?
Q. What is the correct syntax to handle an event in React?
Q. Which company developed React?
Q. Which hook is used to store a mutable value that does not cause re-render?
Q. Which lifecycle method is invoked immediately after a component is mounted?
Q. Which hook allows sharing logic between components in React?
Q. What does the key prop do in React lists?
Q. How do you prevent a component from re-rendering in React?
Q. Which method is used to pass data from parent to child in React?
Q. What is the default state of a new useState variable?
Q. What is the virtual DOM in React?
Q. Which hook is used to perform side effects in functional components?
Q. Which method is used to render React components to the DOM?
Q. What is the purpose of the useState hook in React?
Q. What does Angular use to update the DOM when data changes?
Q. Which decorator is used to make a service injectable in Angular?
Q. Which operator is commonly used in Angular for reactive programming with RxJS?
Q. Which directive is used to conditionally include an element in Angular templates?
Q. What is the default style encapsulation method in Angular?
Q. Which of the following is used to define routes in Angular?
Q. What does the Angular CLI command `ng serve` do?
Q. Which Angular decorator is used to create a service?
Q. What is the role of `AppRoutingModule` in Angular?
Q. How does Angular detect changes in components?
Q. Which of the following is a built-in directive in Angular?
Q. What is the use of `ng-template` in Angular?
Q. Which operator is commonly used with Observables in Angular for HTTP requests?
Q. What does `Renderer2` help with in Angular?
Q. What is `NgModule` in Angular?
Q. How do you define a wildcard route in Angular?
Q. What does `RouterLink` directive do?
Q. Which pipe is used to transform text to uppercase in Angular templates?
Q. What does Angular use to bind form controls to data models in reactive forms?
Q. What command is used to generate a new component using Angular CLI?
Q. What is the purpose of the `RouterOutlet` directive?
Q. Which Angular lifecycle hook is triggered after the component’s view has been fully initialized?
Q. Which command builds an Angular app for production?
Q. Which directive is used to switch between templates based on a condition?
Q. What does `ngOnDestroy()` lifecycle hook do?
Q. Which Angular file contains the metadata about components, services, and modules?
Q. What does the `async` pipe do in Angular?
Q. Which Angular feature allows dynamic injection of components?
Q. What is the purpose of the `*` symbol before Angular structural directives like `*ngIf`?
Q. Which Angular module is used for creating reactive forms?
Q. How do you apply a custom pipe in Angular?
Q. Which module is required to use two-way binding via `ngModel`?
Q. Which Angular directive is used to apply a CSS class conditionally?
Q. What is the syntax for one-way binding in Angular?
Q. Which file is the entry point for an Angular application?
Q. What is a service in Angular used for?
Q. Which method in `HttpClient` is used to send a GET request?
Q. What is the purpose of Angular's `HttpClient` service?
Q. Which hook is used for cleanup logic before a component is destroyed?
Q. What is `zone.js` used for in Angular?
Q. What does Angular CLI stand for?
Q. What is the use of `RouterLink` directive?
Q. Which keyword is used to define a constant in Angular?
Q. How do you bind an event in Angular?
Q. Which Angular tool is used for unit testing?
Q. Which file defines global styles for an Angular project?
Q. Which Angular command compiles and runs the application?
Q. Which lifecycle hook is called once after the first `ngOnChanges`?
Q. Which directive allows dynamic styling in Angular?
Q. Which Angular feature helps in reusing UI components?
Q. How can you lazy-load a module in Angular?
Q. Which decorator is used to create a service in Angular?
Q. Which operator is used in Angular to catch errors in RxJS streams?
Q. What is the role of `@Input()` in Angular?
Q. What does the `ngModel` directive provide?
Q. What is the purpose of the `ngFor` directive?
Q. Which Angular module is needed to use template-driven forms?
Q. How do you protect a route in Angular?
Q. What does the `async` pipe do in a template?
Q. Which operator is used to combine multiple observables?
Q. What does the `selector` property in `@Component` specify?
Q. Which hook is useful to perform actions after view initialization?
Q. Which command is used to create a new Angular project?
Q. What does the `providedIn: 'root'` option in `@Injectable()` indicate?
Q. Which form type provides more flexibility and control in Angular?
Q. Which Angular module allows HTTP communication?
Q. Which file bootstraps the Angular application?
Q. What does `ngOnChanges` lifecycle hook do?
Q. Which directive is used to apply CSS classes conditionally?
Q. Which syntax is used for two-way binding in Angular?
Q. What does the `ngIf` directive do?
Q. What does Angular's AOT stand for?
Q. Which operator is used to transform data emitted by Observables in Angular?
Q. How do you make an Angular service available to the entire application?
Q. Which Angular directive is used to iterate over a list in templates?
Q. What Angular concept allows you to pass data from child to parent component?
Q. Which metadata property of @Component specifies the HTML template?
Q. Which of the following helps in optimizing Angular apps by removing unused code?
Q. How can you create a custom directive in Angular?
Q. Which lifecycle hook is called when a component is about to be destroyed?
Q. Which symbol is used for interpolation binding in Angular templates?
Q. What will happen if you forget to add a component to a module’s declarations?
Q. What is the role of NgModule’s declarations array?
Q. How do you bind a click event in Angular templates?
Q. Which Angular module should be imported to use reactive forms?
Q. Which service is used to perform HTTP requests in Angular?
Q. What lifecycle hook is called after Angular has initialized all data-bound properties?
Q. What is the main purpose of Angular Router?
Q. Which decorator is used to receive data from a parent component?
Q. What does the 'providedIn: root' metadata property in a service do?
Q. Which decorator is used to define metadata for an Angular module?
Q. What is the purpose of the Angular CLI 'ng build' command?
Q. Which of the following is a correct way to include CSS styles in an Angular component?
Q. What does Angular's NgZone service do?
Q. Which module should be imported to use Angular animations?
Q. What is the default file extension for Angular component templates?
Q. Which Angular feature allows you to communicate between sibling components?
Q. How are environment-specific variables managed in Angular projects?
Q. Which decorator is used to listen to DOM events in Angular components?
Q. Which Angular feature is used for lazy loading modules?
Q. How do you declare a two-way data binding in Angular templates?
Q. What is the purpose of Angular’s @Injectable decorator?
Q. Which directive is used to conditionally include a template in Angular?
Q. What does the 'ng serve' command do?
Q. Which file defines the root module of an Angular application?
Q. What command is used to create a new Angular project using Angular CLI?
Q. How do you pass data from a child component to a parent component in Angular?
Q. What will the following Angular template expression output? {{ 5 + 10 }}
Q. Which Angular decorator is used to create a custom pipe?
Q. What does Angular’s ng-content element do?
Q. Which service in Angular allows you to perform HTTP requests?
Q. Which Angular directive helps to repeat a template for each item in a list?
Q. Which Angular decorator marks a property as input binding?
Q. What is the purpose of the async pipe in Angular templates?
Q. Which Angular module is required to work with reactive forms?
Q. How does Angular support dependency injection?
Q. What is the selector in an Angular component?
Q. Which Angular service provides support for reactive programming with Observables?
Q. How can you unsubscribe from Observables in Angular to avoid memory leaks?
Q. What is Angular's EventEmitter used for?
Q. What is the purpose of Angular's Renderer2 service?
Q. How do you prevent a component from being destroyed when navigating away in Angular?
Q. Which lifecycle hook is called before ngOnInit and when any data-bound property changes?
Q. What is the main purpose of Angular's RouterModule?
Q. Which Angular module is required for animations?
Q. What does the Angular service HttpInterceptor do?
Q. How do you declare a route guard in Angular?
Q. Which Angular decorator marks a method to listen to a host event?
Q. How do you create a service singleton throughout the entire Angular application?
Q. Which symbol is used for property binding in Angular templates?
Q. Which Angular directive conditionally includes a template based on a boolean expression?
Q. What does the Angular decorator @HostBinding do?
Q. What is the primary purpose of Angular Pipes?
Q. Which decorator allows you to listen to DOM events in Angular templates?
Q. How do you inject a service in an Angular component?
Q. Which lifecycle hook is invoked when Angular finishes creating the component's view?
Q. What is the purpose of Angular CLI?
Q. What is the purpose of Angular's Zone.js?
Q. Which Angular feature helps in modularizing the application into cohesive blocks?
Q. Which RxJS operator is used to handle errors in Angular Observables?
Q. How can you define default routes in Angular routing?
Q. Which Angular decorator is used to pass data from parent to child component?
Q. What does the Angular pipe 'async' do?
Q. How do you bind the value of an input element to a component property in two-way binding?
Q. How can you access a child component's properties and methods in Angular?
Q. Which decorator is used to define a custom Angular directive?
Q. How do you prevent Angular from sanitizing and trusting HTML content?
Q. What is the default encapsulation mode for Angular component styles?
Q. Which Angular feature allows sharing data between unrelated components?
Q. How do you apply CSS styles specifically to one Angular component?
Q. Which lifecycle hook is called after Angular initializes the component's input properties?
Q. Which operator is commonly used to combine multiple Observables in Angular?
Q. Which Angular command generates a new component?
Q. What Angular decorator marks a class as an injectable service?
Q. Which Angular module is necessary to use forms in template-driven approach?
Q. What does the Angular CLI command 'ng lint' do?
Q. How do you pass data from a child component back to a parent component?
Q. Which Angular command builds the project for production?
Q. What is the purpose of Angular’s Renderer2?
Q. Which Angular directive binds data to an HTML element property?
Q. How can you protect a route in Angular to allow only authorized users?
Q. Which Angular feature allows intercepting and modifying HTTP requests globally?
Q. What does the Angular @HostListener decorator do?
Q. How do you create a reactive form control in Angular?
Q. What is the Angular CLI command to serve the application locally?
Q. How do you create a lazy-loaded feature module in Angular?
Q. What is the purpose of the async pipe in Angular?
Q. Which Angular lifecycle hook is called when a component is destroyed?
Q. What is Angular’s router outlet used for?
Q. Which Angular directive can be used to add or remove CSS classes conditionally?
Q. How can you secure routes in Angular?
Q. What is Angular’s default animation engine?
Q. Which command runs unit tests in an Angular project?
Q. Which Angular feature helps in lazy loading modules?
Q. What is the selector property in @Component decorator used for?
Q. How do you trigger change detection manually in Angular?
Q. Which Angular decorator is used to create a pipe?
Q. What Angular feature allows you to share data between unrelated components?
Q. What is the main difference between structural and attribute directives in Angular?
Q. How do you prevent Angular from sanitizing URLs in a template?
Q. Which file typically contains the root component of an Angular app?
Q. What is the primary purpose of Angular’s Renderer2?
Q. How do you declare a service to be provided only in a specific Angular module?
Q. Which Angular decorator allows injecting dependencies into a service or component?
Q. What is the purpose of the Angular environment files?
Q. How can you optimize an Angular application for production?
Q. Which Angular module is needed for using forms with ngModel?
Q. What does the 'declarations' array in @NgModule do?
Q. How are pipes used in Angular templates?
Q. What is the use of Angular’s ContentChild decorator?
Q. What is the purpose of Angular’s NgZone service?
Q. How do you implement two-way data binding in Angular?
Q. Which of the following is used to bind component class data to the HTML template?
Q. What is Angular's AOT compilation?
Q. Which Angular CLI command is used to generate a new component?
Q. What Angular decorator is used to create a custom attribute directive?
Q. How do you add metadata to an Angular component?
Q. What is the purpose of Angular’s HttpClientModule?
Q. How can you make an Angular service singleton?
Q. Which lifecycle hook is called when Angular sets or resets data-bound input properties?
Q. What is the primary role of Angular Router?
Q. How do you access a child component's properties in the parent component?
Q. What does the 'providedIn' property in @Injectable decorator specify?
Q. Which Angular directive is used to conditionally include a template?
Q. How do you inject a service into a component?
Q. Which file typically contains the main module bootstrapping code?
Q. Which decorator is used to define input properties in a component?
Q. How do you define a reactive form in Angular?
Q. What is the primary purpose of Angular CLI?
Q. Which Angular decorator is used to declare a class as a module?
Q. How do you emit an event from a child component to a parent component?
Q. Which decorator is used to create a pipe in Angular?
Q. How can you create a lazy-loaded module in Angular?
Q. What is the purpose of the Renderer2 service in Angular?
Q. What does Angular's ChangeDetectionStrategy.OnPush do?
Q. Which service allows intercepting HTTP requests and responses in Angular?
Q. What does the @HostListener decorator do in Angular?
Q. How is a custom directive defined in Angular?
Q. What does the BrowserModule import provide?
Q. What is the role of NgModules in Angular?
Q. Which file typically contains route configurations?
Q. Which RxJS operator is used to switch to a new observable on emission?
Q. Which Angular CLI command is used to add a new service?
Q. How can you navigate programmatically in Angular?
Q. What is the use of the async pipe in Angular templates?
Q. What does Angular's HttpClient return when making HTTP requests?
Q. Which component decorator property is used to define the template HTML file?
Q. What is a pure pipe in Angular?
Q. How can you prevent a route from being accessed in Angular?
Q. What is the default port used by Angular development server?
Q. What is the use of the `trackBy` function in *ngFor?
Q. Which built-in pipe is used to transform text to lowercase in Angular?
Q. Which Angular module is needed for two-way data binding using ngModel?
Q. Which decorator is used to pass data from a parent component to a child component?
Q. Which Angular lifecycle hook is called after the component's view and child views are initialized?
Q. What is the purpose of the @Injectable() decorator in Angular?
Q. Which command creates a new Angular component?
Q. Which operator should be used to catch errors in an observable stream?
Q. What is the use of the `environment.ts` file in Angular?
Q. Which class in Angular represents the active route and its data?
Q. Which directive is used to handle multiple conditional views?
Q. How do you define a service as a singleton in Angular?
Q. What does the Angular `async` pipe do?
Q. What is a resolver in Angular routing?
Q. Which file contains metadata like the app selector and template path for a component?
Q. Which Angular feature allows communication from child to parent component?
Q. Which RxJS operator is used to transform emitted values in Angular services?
Q. Which syntax is used to bind an event in Angular?
Q. What is the purpose of Angular CLI's `ng build` command?
Q. Which Angular class is used to handle form validation in reactive forms?
Q. Which Angular directive is used to loop through a list and render items?
Q. Which directive creates a placeholder for dynamically loaded views?
Q. What does the `*` symbol represent in structural directives?
Q. Which Angular feature can be used to handle user input in a template-driven form?
Q. Which lifecycle hook is called when the component is created?
Q. What does the `@Injectable()` decorator do?
Q. What does `ng serve` do in Angular CLI?
Q. Which Angular concept enables dependency injection?
Q. Which decorator marks a class as an Angular pipe?
Q. Which Angular feature allows subscribing to asynchronous data streams?
Q. What does a guard in Angular routing do?
Q. Which feature in Angular helps split the application into smaller modules loaded on demand?
Q. Which directive conditionally includes a template in the DOM?
Q. What does the Angular CLI command `ng lint` do?
Q. What does `trackBy` do in an *ngFor directive?
Q. What is the purpose of the `HttpClientModule` in Angular?
Q. Which binding technique allows passing data from the component class to the template?
Q. Which Angular module is essential for template-driven forms?
Q. Which directive helps in creating tab-based navigation using routes?
Q. Which decorator is used to define output properties?
Q. Which Angular service is used to access the current route parameters?
Q. What does `FormBuilder` help simplify in Angular?
Q. What is the main purpose of `RouterModule.forRoot()`?
Q. What happens when you use `OnPush` change detection strategy?
Q. What is the purpose of the `async` pipe in Angular?
Q. Which RxJS operator is used to handle errors in an observable chain?
Q. Which command generates a new Angular component using Angular CLI?
Q. Which lifecycle hook is called before a component is destroyed?
Q. What does the `ng-content` directive do?
Q. Which file in Angular contains global configurations for CLI commands?
Q. What is the purpose of the Angular CLI command `ng build`?
Q. Which Angular feature is primarily used to intercept and handle HTTP requests and responses?
Q. How do you pass data to a route in Angular?
Q. What is the purpose of `ng-template` in Angular?
Q. What does `trackBy` do in `*ngFor`?
Q. Which module is required for animation support in Angular?
Q. Which method is used to navigate programmatically in Angular?
Q. How do you make a service available application-wide?
Q. Which Angular feature helps in lazy loading of modules?
Q. Which decorator is used to define an input property in a component?
Q. What is the default port Angular development server runs on?
Q. What is the purpose of a guard in Angular?
Q. Which Angular directive is used for conditional rendering?
Q. Which operator is commonly used with observables in Angular?
Q. Which file is responsible for bootstrapping an Angular application?
Q. What does the `HttpClientModule` provide?
Q. What is the correct syntax to create a two-way binding in Angular?
Q. Which decorator is used to define a service in Angular?
Q. What is the purpose of `ngOnInit` lifecycle hook?
Q. Which directive is used to repeat a block of HTML for each item in a list?
Q. What happens if you forget to import a module used by a component?
Q. How is a custom pipe created in Angular?
Q. What is `environment.ts` used for?
Q. What is a reactive form in Angular?
Q. How do you share data between unrelated components?
Q. Which binding syntax is used for property binding?
Q. Which property in `angular.json` specifies the app's starting point?
Q. How are Angular modules decorated?
Q. What does `pathMatch: 'full'` mean in Angular routes?
Q. What is an Angular service?
Q. What is the difference between `@Input()` and `@Output()`?
Q. What does `async pipe` do in Angular?
Q. What is the role of `ngOnDestroy()` lifecycle hook?
Q. Which file contains the root module of an Angular application?
Q. How do you bind a method to a button click in Angular template?
Q. What does `ng serve` command do?
Q. What does `ngIf` directive do?
Q. Which Angular module is required for using forms in template-driven approach?
Q. Which command is used to create a new Angular component using CLI?
Q. What does `providedIn: 'root'` mean in Angular services?
Q. How do you define a route in Angular?
Q. Which module is needed for browser-specific features?
Q. What is the purpose of `@ViewChild()`?
Q. How is dependency injection provided in Angular?
Q. What is the use of `FormBuilder`?
Q. What is the purpose of `HttpClientModule`?
Q. Which Angular directive is used to iterate over a list?
Q. Which decorator defines an Angular component?
Q. Which Angular directive is used for two-way data binding?
Q. What is a `Guard` in Angular used for?
Q. What is `@Injectable()` used for in Angular?
Q. What does `ngOnInit` lifecycle hook do?
Q. What is the purpose of the Angular `RouterModule`?
Q. How do you listen to events in a child component from the parent?
Q. What is the purpose of the trackBy function in *ngFor?
Q. What is the purpose of the ng-template directive?
Q. Which Angular module is required to work with template-driven forms?
Q. Which structural directive is used to conditionally include an element in the DOM?
Q. Which RxJS operator is used to transform values emitted by an Observable?
Q. What is a singleton service in Angular?
Q. What is ViewEncapsulation in Angular?
Q. What is the role of a resolver in Angular routing?
Q. Which HTTP method is used for updating data in Angular?
Q. Which operator in RxJS is commonly used to handle HTTP errors?
Q. How can you pass data from a parent to a child component?
Q. What is the purpose of the CommonModule in Angular?
Q. Which of the following is used to bind a form control in a reactive form?
Q. Which lifecycle hook is used to clean up subscriptions in Angular?
Q. What does the Angular async pipe do?
Q. What is the purpose of Angular decorators like @Input and @Output?
Q. Which command compiles an Angular app in production mode?
Q. What is the main role of a module in Angular?
Q. What does the 'ngOnInit' lifecycle hook do?
Q. Which directive would you use to show an element only when a condition is true?
Q. Which command is used to add a new component via Angular CLI?
Q. Which decorator is used to define an Angular component?
Q. How do you declare a service so it's available application-wide?
Q. Which Angular module is necessary to use Angular routing?
Q. What is the purpose of FormGroup in Angular?
Q. What does AOT stand for in Angular?
Q. Which pipe would you use to format a number as currency in Angular?
Q. Which Angular package provides support for animations?
Q. Which built-in directive helps in looping through a list in Angular?
Q. What does Angular use to detect changes in component state and update the view?
Q. Which file defines the root module in a typical Angular application?
Q. Which directive is used to dynamically add or remove CSS classes in Angular?
Q. Which method is used to navigate programmatically to a different route in Angular?
Q. Which lifecycle hook is called after the component's view has been fully initialized?
Q. How does Angular provide dependency injection?
Q. Which file typically bootstraps the root Angular module?
Q. Which Angular CLI command is used to add a new module?
Q. What is the use of HttpInterceptor in Angular?
Q. What is used in Angular to transform data before displaying in the view?
Q. Which decorator is used to create a new Angular service?
Q. What is a guard in Angular?
Q. Which metadata field is used to define the HTML used by a component?
Q. Which of the following is a structural directive in Angular?
Q. How can Angular detect changes in model and update the view?
Q. What is the primary purpose of a Service in Angular?
Q. What is the default value of the 'preserveWhitespaces' setting in Angular components?
Q. What is the purpose of the async pipe?
Q. Which module must be imported to use Angular reactive forms?
Q. Which service is used for navigation in Angular?
Q. What is the use of 'ngModel' in Angular?
Q. Which file is used to configure Angular CLI?
Q. What does the Angular compiler transform templates into?
Q. What is the Angular environment file used for?
Q. Which command initializes a new Angular project?
Q. How do you access route parameters in an Angular component?
Q. Which Angular directive is used to apply styles conditionally?
Q. What is the primary use of Angular Pipes?
Q. How can you share data between sibling components in Angular?
Q. Which lifecycle hook is called just before Angular destroys a component?
Q. How do you listen to DOM events in Angular templates?
Q. Which Angular feature allows you to create reusable UI logic without a template?
Q. What does Angular's 'HttpClientModule' provide?
Q. Which decorator is used to define a custom pipe in Angular?
Q. What is the purpose of the Angular CLI command 'ng build'?
Q. Which Angular feature allows you to protect routes from unauthorized access?
Q. How can you optimize Angular app performance with change detection?
Q. Which Angular CLI command is used to serve the application locally?
Q. What is the default selector type in Angular component metadata?
Q. Which method is used to subscribe to an Observable in Angular?
Q. Which Angular directive is used to conditionally include or exclude a template?
Q. How do you pass data from a parent component to a child component?
Q. Which Angular module is required to use forms with template-driven approach?
Q. Which Angular decorator is used to get a reference to a template element inside a component class?
Q. Which Angular feature allows sharing data across multiple components?
Q. Which Angular decorator is used to define an Angular module?
Q. How do you define a route path that loads a module lazily?
Q. What is the Angular CLI command to add a new component?
Q. What is the correct way to inject a service into an Angular component?
Q. How can you import Angular Material components into your app module?
Q. What Angular directive is used to iterate over a collection and render elements?
Q. How do you create a reactive form in Angular?
Q. What is the purpose of the 'declarations' array in an Angular module?
Q. Which file is the main entry point for bootstrapping an Angular application?
Q. Which Angular service is used to navigate programmatically between routes?
Q. How do you define a two-way data binding in Angular template syntax?
Q. What is the purpose of the 'providers' array in an Angular module?
Q. Which decorator is used to make a class injectable as a service in Angular?
Q. Which Angular directive is used to bind the value of an HTML element to a variable?
Q. Which file contains the root component for an Angular application by default?
Q. What does Angular's Renderer2 service help with?
Q. What is Angular's built-in directive to conditionally include or exclude an element in the DOM?
Q. What is the purpose of Angular’s environment files?
Q. Which Angular decorator is used to define a class as a directive?
Q. How can you pass static data to a route in Angular routing?
Q. Which Angular feature helps avoid memory leaks with Observable subscriptions?
Q. Which Angular CLI command runs the development server?
Q. What is the role of Angular’s NgZone service?
Q. What type of binding uses parentheses () in Angular templates?
Q. Which Angular decorator is used to define a custom pipe?
Q. What is Angular’s default strategy for loading feature modules?
Q. How do you emit events from a child component to a parent component?
Q. What does the Angular HttpClient service return when making HTTP requests?
Q. Which Angular feature allows you to run code when a route is activated or deactivated?
Q. What is the Angular directive for binding input properties to HTML elements?
Q. How can Angular improve startup time by compiling templates before running the app?
Q. How do you add metadata to an Angular component to define its selector, template, and styles?
Q. Which decorator allows you to inject a service into a component or another service?
Q. Which Angular lifecycle hook is called when input properties change?
Q. What does the Angular decorator @NgModule declare?
Q. Which Angular service provides navigation information such as URL parameters and query parameters?
Q. What is the purpose of the 'trackBy' function in *ngFor?
Q. How can you include global styles that apply to the entire Angular application?
Q. How would you lazy load a feature module in Angular routing?
Q. Which operator in RxJS is commonly used to transform values emitted by an Observable?
Q. What Angular concept helps with dependency injection and managing service lifecycles?
Q. Which directive allows you to create a custom structural directive?
Q. What is the purpose of the Angular 'RouterModule.forRoot()' method?
Q. How do you prevent a service from being a singleton and provide a new instance at component level?
Q. Which Angular module do you need to import to use two-way data binding with ngModel?
Q. Which service is used to pass data between components that do not have a parent-child relationship?
Q. What is the main advantage of using Angular’s Reactive Forms over Template-driven Forms?
Q. What is the function of the Angular 'Renderer2' service?
Q. Which Angular module do you import to use reactive forms?
Q. How can you optimize Angular app performance by avoiding unnecessary change detection?
Q. Which Angular lifecycle hook is called every time Angular runs change detection?
Q. What is the purpose of the 'schemas' property in an NgModule?
Q. What Angular feature allows you to create reusable validation logic for forms?
Q. What is the role of the 'async' pipe in Angular?
Q. Which Angular directive is used to bind a CSS style property?
Q. What does the Angular CLI command 'ng generate component my-component' do?
Q. What Angular decorator is used to get a reference to a child component or DOM element?
Q. What is the purpose of the Angular 'NgZone' service?
Q. Which method in a service returns an Observable from an HTTP GET request?
Q. What is the default encapsulation mode of styles in Angular components?
Q. How can you make a component reusable and configurable from the outside?
Q. What is the purpose of the 'providedIn' property in the @Injectable decorator?
Q. Which Angular decorator is used to listen to DOM events inside a component class?
Q. What does Angular's AOT compilation stand for?
Q. Which Angular service is commonly used to navigate programmatically?
Q. What is the difference between a structural directive and an attribute directive in Angular?
Q. What does the Angular 'ng-content' directive do?
Q. Which Angular directive is used to bind an event to a method?
Q. What is the syntax for two-way data binding in Angular templates?
Q. What Angular feature helps to optimize bundle size by loading modules only when needed?
Q. Which directive would you use to dynamically add or remove CSS classes based on a condition?
Q. What file contains the root module of an Angular application by default?
Q. Which decorator is used to emit events from a child component to its parent?
Q. What does the Angular CLI command 'ng serve' do?
Q. What is the Angular router outlet?
Q. How do you declare a reactive form in Angular?
Q. What is an Angular pipe used for?
Q. What is the Angular directive used for iterating over a list?
Q. What is the role of the HttpClientModule in Angular?
Q. Which decorator is used to define an input property in a child component?
Q. Which Angular directive is used to conditionally include or exclude elements in the DOM?
Q. What is the Angular decorator used to create a component?
Q. What is the purpose of Angular guards?
Q. What Angular module must be imported to use Angular animations?
Q. How can you define a route parameter in Angular routing?
Q. What does Angular's dependency injection system do?
Q. What is the difference between an Observable and a Promise in Angular?
Q. What is the Angular CLI command to build the application for production?
Q. Which lifecycle hook is called when Angular destroys a component?
Q. What does two-way data binding use internally in Angular?
Q. What is the role of the ngModule decorator?
Q. Which of the following is used to get a reference to a DOM element in a component?
Q. What is the use of the async and await keywords in Angular?
Q. Which Angular decorator defines a service class that can be injected?
Q. How can you pass data from a parent component to a child component?
Q. Which module is required to use template-driven forms?
Q. What is the primary purpose of Angular Services?
Q. Which of the following is NOT a valid Angular lifecycle hook?
Q. Which decorator is used to inject dependencies into Angular components or services?
Q. What is the purpose of the 'entryComponents' array in Angular?
Q. What is Angular Universal used for?
Q. Which Angular CLI command generates a new component?
Q. How do you handle errors globally in Angular HTTP requests?
Q. Which command is used to serve the Angular application locally?
Q. Which property in @Component defines the HTML template?
Q. How do you lazy load a module in Angular routing?
Q. Which decorator allows adding metadata to a component class?
Q. How can you make a form reactive in Angular?
Q. What is the significance of the 'providers' array in an @NgModule or @Component?
Q. Which Angular service is used to perform HTTP requests?
Q. What is the purpose of the ngOnInit lifecycle hook?
Q. How do you create a custom event to communicate from a child to a parent component?
Q. Which Angular decorator is used to define a directive?
Q. How can you prevent a component from being recreated every time it is navigated to?
Q. What does the RouterModule.forRoot() method do?
Q. In Angular, what is a 'pipe' used for?
Q. Which directive is used to repeat a template for each item in a collection?
Q. Which decorator do you use to inject a dependency in Angular?
Q. How do you define a route with a parameter in Angular?
Q. What is the purpose of the 'keyvalue' pipe?
Q. What is a 'Template Reference Variable' in Angular?
Q. How can you protect a route from unauthorized access?
Q. What is the significance of 'declarations' array in @NgModule?
Q. Which Angular module is necessary to run an Angular app in a browser?
Q. Which decorator allows defining metadata for services in Angular?
Q. What is the primary purpose of the HttpInterceptor?
Q. Which method in Angular service is commonly used to share data across components?
Q. Which module must be imported to use forms and ngModel in Angular?
Q. How do you enable two-way data binding in Angular?
Q. What is the role of Zone.js in Angular?
Q. Which lifecycle hook detects changes to input properties?
Q. What is the use of the @Output decorator in Angular?
Q. Which Angular directive is used to conditionally include or exclude an element?
Q. What is the purpose of the 'bootstrap' array in @NgModule?
Q. Which file typically contains the root module in an Angular project?
Q. How can you optimize Angular application performance?
Q. What does the term 'Ahead-of-Time (AOT) compilation' mean in Angular?
Q. Which operator is commonly used in Angular to unsubscribe automatically?
Q. Which Angular module must be imported to enable routing?
Q. What is the role of Renderer2 in Angular?
Q. What does the 'providers' array in @NgModule do?
Q. How do you add CSS styles specific to an Angular component?
Q. Which decorator is used to create Angular components?
Q. What is the role of the RouterModule in Angular?
Q. How do you catch HTTP errors globally in Angular?
Q. Which lifecycle hook is called after Angular initializes all data-bound properties?
Q. How do you provide a service at the root level in Angular?
Q. How can you lazy load an Angular module?
Q. Which Angular decorator is used to create a custom directive?
Q. What does the 'async' pipe do in Angular templates?
Q. What is the main purpose of Angular CLI?
Q. How can you share data between unrelated components in Angular?
Q. Which Angular lifecycle hook is called just before Angular destroys the component?
Q. What is the output of the Angular CLI command 'ng serve'?
Q. What is Angular’s Zone.js used for?
Q. How can you make a service available only to a specific module?
Q. Which command is used to create a new Angular project using Angular CLI?
Q. What is the correct syntax for an Angular event binding?
Q. How do you access a child component’s properties from the parent component?
Q. Which Angular decorator allows you to create a custom event from a child component?
Q. Which Angular decorator marks a class as injectable service?
Q. Which Angular module must be imported to use two-way data binding with ngModel?
Q. How is two-way data binding implemented in Angular?
Q. What type of data binding uses square brackets [ ] in Angular templates?
Q. What is the purpose of the 'ngIf' directive?
Q. Which decorator is used to receive input data from a parent component?
Q. What is the purpose of the 'ngFor' directive in Angular?
Q. How do you protect routes in Angular to restrict access?
Q. Which Angular decorator is used to listen to DOM events inside a component?
Q. Which of these Angular lifecycle hooks runs only once after the first ngOnChanges?
Q. Which of the following is true about Angular Ivy?
Q. What decorator is used to declare a pipe in Angular?
Q. Which Angular feature supports building reusable UI components with encapsulated styles?
Q. How can you create a service singleton available application-wide?
Q. Which of these is NOT a valid Angular template syntax?
Q. How do you unsubscribe from an Observable in Angular to prevent memory leaks?
Q. What is the purpose of the 'async' pipe in Angular templates?
Q. What is the main difference between components and directives in Angular?
Q. Which Angular decorator is used to create a directive?
Q. How does OnPush change detection strategy improve performance?
Q. What does the 'providers' array inside @NgModule metadata do?
Q. What is the Angular CLI command to generate a new component?
Q. Which Angular module must be imported to use HttpClient?
Q. What is Angular’s HttpClient used for?
Q. What is the primary purpose of Angular’s RouterModule?
Q. How do you access a child component’s method or property from a parent component?
Q. Which of these is NOT a valid Angular lifecycle hook?
Q. What does the Angular CLI command 'ng build --prod' do?
Q. What is the purpose of Angular’s Injector?
Q. Which of these is the Angular default port when running 'ng serve'?
Q. What is the Angular directive to iterate over lists?
Q. Which decorator is used to mark a class as an injectable service?
Q. How can you provide a service at the component level?
Q. Which symbol is used for two-way binding in Angular templates?
Q. What is Angular’s default stylesheet format?
Q. What is Angular’s CLI command to run a development server?
Q. Which lifecycle hook is called after Angular sets the component's input properties?
Q. What is the difference between template-driven and reactive forms?
Q. Which module should you import to work with template-driven forms?
Q. What decorator is used to emit events from child to parent components?
Q. How can you pass data from a parent to a child component in Angular?
Q. What is the purpose of Angular’s NgModule?
Q. What file does Angular CLI create by default for the root module?
Q. Which of the following is NOT a valid Angular binding syntax?
Q. What is the Angular lifecycle hook used for cleanup before a component is destroyed?
Q. How do you declare a service to be injectable throughout the app?
Q. Which Angular feature allows you to create reusable UI elements?
Q. How do you handle asynchronous data in Angular templates?
Q. Which directive is used to bind an element property to a template expression?
Q. What is the default selector prefix for Angular components generated by CLI?
Q. Which pipe formats a date in Angular?
Q. What is the purpose of Angular pipes?
Q. Which Angular directive conditionally includes a template?
Q. What command creates a new component using Angular CLI?
Q. How does Angular detect changes in template variables?
Q. How do you mark a component to use OnPush change detection?
Q. Which Angular module do you import to enable routing?
Q. What is Angular's Change Detection strategy default behavior?
Q. What does the Angular decorator @HostListener do?
Q. Which Angular directive is used to apply CSS classes conditionally?
Q. What is the main purpose of the Angular Renderer2 service?
Q. Which decorator would you use to mark a class as injectable?
Q. What is the default file extension of Angular style files?
Q. Which file contains the root component of an Angular app?
Q. What does the trackBy function optimize in *ngFor?
Q. Which command runs Angular unit tests using Karma?
Q. What is the purpose of the @Input decorator?
Q. How do you lazy load a feature module in Angular?
Q. Which operator allows combining multiple Observables in Angular?
Q. How can you share data between two unrelated Angular components?
Q. What is the selector property used for in @Component?
Q. Which Angular lifecycle hook is called when data-bound input properties change?
Q. What does the Angular HttpClient service do?
Q. Which module must be imported to use FormsModule in Angular?
Q. How do you create a two-way data binding in Angular template?
Q. What is the role of the bootstrap array in @NgModule?
Q. Which decorator defines an Angular module?
Q. What is Angular CLI used for?
Q. What is the purpose of the Angular environment.ts file?
Q. How can you listen to DOM events in Angular templates?
Q. Which Angular decorator is used to create a reusable directive?
Q. What is the default change detection strategy in Angular?
Q. Which decorator marks a class as a component in Angular?
Q. What does the async pipe do in Angular templates?
Q. How do you protect routes in Angular so that only authorized users can access them?
Q. Which operator is commonly used to unsubscribe automatically from an observable in Angular?
Q. Which of the following is used to create a custom pipe in Angular?
Q. What will happen if you add a service in the providers array of a component?
Q. How can you make an Angular form control required in reactive forms?
Q. What is the purpose of the @ViewChild decorator?
Q. What pipe would you use to format a date in Angular?
Q. How do you define a service that should be scoped only to a specific Angular module?
Q. What is the main purpose of the Angular RouterOutlet directive?
Q. Which lifecycle hook is called after Angular has fully initialized a component’s view?
Q. How can you pass parameters to a route in Angular?
Q. What Angular directive is used to conditionally include a template based on a boolean expression?
Q. How can you bind CSS classes conditionally in Angular?
Q. What is the purpose of the Angular CLI command 'ng build --prod'?
Q. Which method in HttpClient returns an Observable?
Q. What is the purpose of the HttpClientTestingModule?
Q. How can you inject a service into a component?
Q. Which of the following is NOT a valid lifecycle hook in Angular?
Q. How do you create a two-way data binding in Angular?
Q. Which decorator is used to define an input property in Angular?
Q. What is the main advantage of using OnPush change detection strategy?
Q. What does the `fixture.detectChanges()` method do in Angular testing?
Q. Which Angular testing utility is used to create a component fixture?
Q. What is the default scope of a service provided via 'providedIn: root'?
Q. What is the difference between Template-driven and Reactive forms in Angular?
Q. How can you create a reactive form control in Angular?
Q. Which of the following is a pure pipe?
Q. What is the role of the `trackBy` function in *ngFor?
Q. What is the purpose of the NgZone service?
Q. Which method is used to get the current value of a FormControl?
Q. Which Angular module is required for using reactive forms?
Q. Which change detection strategy checks only when the component’s inputs change?
Q. Which Angular CLI command generates a new service?
Q. Which Angular decorator marks a class as a component?
Q. Which of the following is a structural directive?
Q. Which lifecycle hook is called once the component’s view has been fully initialized?
Q. What is the purpose of the `providers` array in @NgModule?
Q. How do you unsubscribe from an Observable in Angular?
Q. What is the difference between Subject and BehaviorSubject in RxJS?
Q. Which method in a service would you use to share data reactively across components?
Q. Which decorator is used to specify metadata for an Angular pipe?
Q. What does Angular Elements allow you to do?
Q. What is the purpose of the AsyncPipe in Angular templates?
Q. Which pipe is used to transform text to uppercase in Angular?
Q. What is the primary function of Angular Animations?
Q. Which Angular module is required to use animations?
Q. Which Angular decorator is used to define an injectable service?
Q. How do you register a service for a lazy-loaded module?
Q. What is Dependency Injection in Angular?
Q. Which lifecycle hook is called after Angular has initialized all data-bound properties?
Q. Which decorator is used to emit events from a child component?
Q. How do you pass data from a parent to a child component?
Q. Which command installs a new Angular package?
Q. What does the `providedIn` property in @Injectable decorator do?
Q. Which Angular module should be imported to work with HTTP interceptors?
Q. Which Angular decorator is used to inject dependencies?
Q. What is the role of `ngOnDestroy` lifecycle hook?
Q. How can you optimize Angular app bundle size?
Q. Which Angular decorator is used to provide a service at the root level?
Q. What is lazy loading in Angular?
Q. Which decorator is used to define an Angular module?
Q. Which file typically bootstraps the Angular app?
Q. How do you create a custom pipe in Angular?
Q. Which Angular built-in pipe is used to format dates?
Q. Which decorator is used to create a directive in Angular?
Q. What does the AsyncPipe do?
Q. Which Angular service is used to make HTTP requests?
Q. How do you protect a route using authentication guard?
Q. Which module is required to use routing in an Angular app?
Q. Which command starts the Angular development server?
Q. Which Angular file is typically used to register providers globally?
Q. Which RxJS operator is best for canceling HTTP requests?
Q. Which method resets a reactive form in Angular?
Q. Which command builds the Angular app in production mode?
Q. What is the purpose of `trackBy` in `*ngFor`?
Q. How can you improve Angular app startup time?
Q. Which built-in Angular validator checks if input is required?
Q. Which method is used to validate a FormControl in Angular?
Q. Which class is used to create reactive forms in Angular?
Q. Which Angular directive is used to bind form input using template-driven forms?
Q. Which Angular CLI command adds server-side rendering support?
Q. Which tool is used for server-side rendering in Angular?
Q. Which testing utility is used to create test components?
Q. Which command runs unit tests in Angular?
Q. Which RxJS operator is commonly used in NgRx effects?
Q. Which NgRx feature handles side effects like API calls?
Q. In NgRx, which function returns new state based on actions?
Q. Which NgRx concept is used to define the state and its structure?
Q. Which library is commonly used for state management in Angular?
Q. Which signal method reacts to changes without returning data?
Q. Which Angular directive is used to loop through an array?
Q. What does the `ng build` command do?
Q. Which Angular CLI flag creates a flat folder structure?
Q. Which of the following is not a valid signal operation?
Q. What does the `zone.js` library do in Angular?
Q. Which CLI command updates Angular to the latest version?
Q. Which file holds default project configuration in Angular CLI?
Q. What is the role of `provideRouter()` in Angular?
Q. Which file is updated when a new component is added via CLI?
Q. What does ChangeDetectionStrategy.OnPush do?
Q. Which directive enables conditional rendering based on signal or boolean?
Q. Which method enables lazy loading of standalone components?
Q. What is the primary benefit of standalone components?
Q. Which lifecycle hook is best for subscribing to a signal?
Q. Which method is used to read the current value of a signal?
Q. Which function is used to declare a signal in Angular?
Q. Which Angular feature introduced in v16 provides reactive primitives?
Q. What is the purpose of the `--standalone` flag in Angular CLI?
Q. Which Angular CLI command creates a new component?
Q. Which RxJS operator prevents duplicate emissions?
Q. Which Angular construct helps split large applications into smaller modules?
Q. Which RxJS operator delays values by a specified time?
Q. Which lifecycle hook is used to initiate animations in Angular?
Q. Which Angular decorator is used to inject services in a constructor?
Q. How are animations triggered in Angular components?
Q. Which method is used to provide global dependencies in Angular?
Q. Which Angular CLI command is used to extract i18n messages?
Q. What is the purpose of the i18n attribute in Angular templates?
Q. Which Angular package supports internationalization?
Q. Which function is used to create route animations?
Q. Which command generates a new guard in Angular CLI?
Q. Which guard checks before unloading a component?
Q. Which routing guard is used to prevent navigation to a route?
Q. Which decorator is used to inject dependencies in Angular?
Q. Which RxJS operator limits the number of emissions?
Q. Which RxJS operator cancels previous Observable when a new one is emitted?
Q. Which RxJS operator combines multiple Observables into one by emitting all values?
Q. Which RxJS operator is used to transform emitted values?
Q. Which Angular Material component is used for tables?
Q. Which function is used to define routes in standalone components?
Q. Which Angular Material component is used for notification popups?
Q. What does Angular use to control asynchronous operations in tests?
Q. What is the primary purpose of TestBed in Angular testing?
Q. Which method is used to simulate user input in unit tests?
Q. Which Angular CLI command is used to run unit tests?
Q. Which tool is commonly used for Angular unit testing?
Q. Which file is used to set global styles in Angular?
Q. What keyword is used in component metadata to mark it standalone?
Q. Which Angular feature allows creating components without a module?
Q. What command is used to add Angular Material to a project?
Q. Which component in Angular Material is used for dialogs?
Q. Which module is needed to use Angular Material components?
Q. What does the 'pristine' property of a form control indicate?
Q. What is the purpose of the 'asyncValidator' in Angular forms?
Q. How do you apply built-in validators in reactive forms?
Q. Which class represents a form group in reactive forms?
Q. What directive is used to bind a form control in template-driven forms?
Q. Which module is used for template-driven forms in Angular?
Q. Which Angular compiler replaced ViewEngine?
Q. What happens if you forget to unsubscribe from a subscription?
Q. Which strategy reduces Angular bundle size?
Q. How can you track identity of items in ngFor for performance?
Q. What is the use of ChangeDetectorRef in Angular?
Q. Which method is used in Angular to clone an Observable?
Q. Which file contains metadata for the root Angular module?
Q. What does the async pipe automatically do in templates?
Q. How can services be shared across all modules in Angular?
Q. What is a key benefit of using Angular's OnPush change detection strategy?
Q. What is the purpose of HttpInterceptor in Angular?
Q. Which mechanism helps secure Angular applications against XSS?
Q. Which HTTP method is used in Angular to fetch data from a server?
Q. How do you emit an event from a child to parent component?
Q. Which decorator is used to define input properties in Angular?
Q. What is a selector in NgRx?
Q. What is the main role of NgRx effects?
Q. Which NgRx feature is used to dispatch actions?
Q. What is the purpose of NgRx in Angular applications?
Q. What does the async pipe handle automatically?
Q. Which command builds the Angular app for production?
Q. What is a HostListener in Angular?
Q. What happens when you use *ngIf and *ngFor on the same element?
Q. Which module is needed to use Angular's reactive forms?
Q. Which Angular CLI command is used to serve the application?
Q. How can you disable a button based on form validation status?
Q. Which pipe is used to transform text to uppercase?
Q. What does Angular's DomSanitizer help with?
Q. Which service is used to interact with the browser's URL in Angular?
Q. What does the `resolve` property in Angular routes do?
Q. What is a structural directive in Angular?
Q. Which Angular feature ensures that a module or component is loaded only when needed?
Q. How do you access query parameters in an Angular component?
Q. Which lifecycle hook is triggered every time Angular checks for changes?
Q. What is the primary use of the Angular TestBed utility?
Q. How do you define a route parameter in Angular routing?
Q. Which operator is commonly used in Angular with Observables to unsubscribe automatically?
Q. Which command is used to create a new Angular standalone component?
Q. What is the purpose of Angular Signals introduced in Angular 16?
Q. What is the purpose of the 'ng-template' element in Angular?
Q. Which Angular concept makes the app reactive and supports stateful behaviors?
Q. What is the role of the RouterModule.forRoot() method?
Q. Which Angular directive conditionally includes or removes an element in the DOM?
Q. What is the purpose of NgZone in Angular?
Q. How do you protect a route from unauthorized access?
Q. What is the key advantage of lazy loading in Angular?
Q. What is a feature module in Angular?
Q. How do you navigate to another route in Angular programmatically?
Q. What does the 'async' pipe do when the observable emits a new value?
Q. Which decorator is used to pass data from parent to child component?
Q. How can you prevent memory leaks in Angular when using Observables?
Q. What happens when a component is destroyed in Angular?
Q. What is the main purpose of ChangeDetectorRef in Angular?
Q. How do you bind a CSS class conditionally in Angular?
Q. What is the purpose of 'providedIn: root' in a service?
Q. What is the default scope of Angular services provided in a component?
Q. Which Angular version introduced Standalone Components?
Q. Which lifecycle hook is called after the component’s view has been fully initialized?
Q. Which Angular feature allows form fields to be added or removed dynamically?
Q. What is an interceptor in Angular?
Q. What is the use of `RouterOutlet`?
Q. Which part of Angular handles reactive forms?
Q. What is a directive in Angular?
Q. Which command creates a new Angular workspace?
Q. How does Angular support internationalization (i18n)?
Q. Which lifecycle hook is triggered after Angular projects external content into a component?
Q. What is the benefit of Angular's Ivy engine?
Q. Which Angular tool is used to analyze and optimize bundle size?
Q. What is the purpose of the `async` pipe in Angular templates?
Q. What does Angular use internally for reactivity and asynchronous programming?
Q. Which keyword is used for dependency injection in a constructor?
Q. What is used to perform unit testing in Angular?
Q. What is the default ChangeDetectionStrategy in Angular?
Q. What is the role of the 'trackBy' function in *ngFor?
Q. Which directive is used to apply dynamic styles in Angular?
Q. Which method is used to register a route guard in Angular?
Q. What is the purpose of a Resolver in Angular routing?
Q. Which RxJS operator is used to transform emitted items from an observable?
Q. Which Angular concept allows a component to be used without being declared in a module?
Q. Which strategy improves Angular app performance by reducing change detection cycles?
Q. Which Angular service handles navigation between views?
Q. Which Angular feature helps to lazy load modules?
Q. What is Zone.js used for in Angular?
Q. What does `ngOnChanges` do?
Q. How is the root component of Angular app identified?
Q. Which concept ensures code modularity in Angular?
Q. What symbol is used to denote event binding?
Q. Which decorator is used to emit events to parent components?
Q. What does Angular use for dependency injection?
Q. Which of the following is NOT a valid Angular directive?
Q. What does 'ng' stand for in Angular CLI commands?
Q. Which Angular concept allows sharing data between unrelated components?
Q. Which interface is implemented to use ngOnInit?
Q. Which lifecycle hook is called before Angular destroys the component?
Q. What is the use of @Injectable decorator in Angular?
Q. Which function is used to unsubscribe from an observable manually?
Q. Which directive is used to repeat a portion of HTML?
Q. What is the role of HttpClient in Angular?
Q. Which pipe is used to format currency values in Angular?
Q. Which module is used for template-driven forms?
Q. What does the async pipe do in Angular?
Q. How do you pass data to a child component?
Q. What is the purpose of the RouterModule?
Q. Which command is used to start the Angular development server?
Q. What is a module in Angular?
Q. Which Angular package is needed for routing?
Q. Which file contains the metadata for an Angular project?
Q. What is the correct syntax for two-way data binding?
Q. Which type of data binding uses square brackets?
Q. What is data binding in Angular?
Q. Which lifecycle hook is called once after the first ngOnChanges?
Q. What is the purpose of services in Angular?
Q. Which directive is used for conditional rendering in Angular?
Q. What does the Angular CLI stand for?
Q. Which command is used to create a new Angular component?
Q. What file is used to define the root module in Angular?
Q. Which decorator is used to define a component in Angular?
Q. Which architecture pattern does Angular follow?
Q. What is Angular primarily used for?
Q. Which application helps in backing up Windows?
Q. What is Windows Update used for?
Q. Which key is used to access the Windows boot menu?
Q. What does 'Safe Mode' in Windows do?
Q. What is the Windows Blue Screen of Death (BSOD)?
Q. Which file type is used for Windows driver files?
Q. What is the shortcut to refresh the current window in Windows?
Q. What is the maximum supported RAM for 32-bit Windows?
Q. Which Windows folder contains the system kernel files?
Q. What does the Task Manager NOT show?
Q. Which utility checks for corrupted system files?
Q. Which shortcut opens File Explorer?
Q. What is the function of Windows Firewall?
Q. Which utility is used to modify Windows startup programs?
Q. Which version of Windows introduced the Start menu?
Q. Which Windows key combination locks the computer?
Q. What is the name of the Windows virtual assistant?
Q. Which tool allows users to automate tasks in Windows?
Q. Which utility is used to uninstall programs in Windows?
Q. Which command is used to check disk errors in Windows?
Q. Which Windows feature allows you to access your computer remotely?
Q. Which folder typically contains user profiles in Windows?
Q. Which shortcut opens the Run dialog box in Windows?
Q. What type of file is .dll in Windows?
Q. What is the purpose of the Control Panel in Windows?
Q. Which utility allows partition management in Windows?
Q. Which of the following is a taskbar feature introduced in Windows 7?
Q. Which file contains the Windows boot loader?
Q. Which of the following is used to install Windows updates manually?
Q. Which Windows tool displays system resource usage graphically?
Q. Which feature in Windows helps to recover deleted files?
Q. What is the maximum length for a Windows file path?
Q. Which shortcut is used to rename a selected file in Windows?
Q. Which Windows feature lets you encrypt data on a drive?
Q. Which of the following is NOT a version of Windows?
Q. What does UAC stand for in Windows?
Q. Which of the following is a system folder in Windows?
Q. What is the default file system used by modern versions of Windows?
Q. Which Windows feature allows you to restore your system to an earlier point?
Q. What is the purpose of the Windows Registry?
Q. Which of these is used to install software updates in Windows?
Q. Which of the following extensions is a Windows screen saver file?
Q. Which Windows tool is used for checking memory problems?
Q. Which of these is NOT a valid Windows user account type?
Q. Where is the Windows paging file typically stored?
Q. Which shortcut opens Windows Settings?
Q. Which program manages disk space usage in Windows?
Q. What is the use of the 'Run as administrator' option?
Q. Which tool lets you automate administrative tasks in Windows?
Q. Which of these is used to change screen brightness in Windows?
Q. What is the primary function of the 'System Configuration' tool?
Q. Which command is used to display IP configuration in CMD?
Q. What command opens File Explorer from the Run dialog?
Q. Where can you change keyboard layout and input languages in Windows?
Q. Which file extension is associated with Windows batch files?
Q. What does 'Alt + F4' do in Windows?
Q. Which shortcut minimizes all open windows in Windows OS?
Q. Which Windows utility checks the integrity of hard drives?
Q. What is the function of the 'Task Manager' in Windows?
Q. Which Windows folder stores installed applications?
Q. What is the purpose of the Windows 'Run' dialog box?
Q. Which Windows tool allows system recovery to a previous state?
Q. Which of the following is the default command shell in Windows?
Q. What is the use of 'Windows Defender'?
Q. Which of the following is the default browser in Windows 10?
Q. Which Windows command opens the System Information tool?
Q. Which Windows update tool installs updates automatically?
Q. What is the use of Windows 'Snipping Tool'?
Q. Which file system is commonly used in modern versions of Windows?
Q. Which of the following is a core component of the Windows operating system?
Q. Which Windows file is responsible for booting the operating system?
Q. Which Windows utility is used for creating partitions?
Q. What is the function of the Windows Control Panel?
Q. Which shortcut is used to lock a Windows computer?
Q. What is the purpose of the Windows Recycle Bin?
Q. Which key opens the Windows Help menu?
Q. What is the function of the Windows Firewall?
Q. Which of the following is used to manage hardware devices in Windows?
Q. What does the .exe extension indicate?
Q. Which keyboard shortcut opens the Windows Start menu?
Q. Which tool in Windows is used to change screen resolution?
Q. What is the use of 'Task Scheduler'?
Q. Which tool shows system performance in real-time?
Q. Where are system restore points created?
Q. What does the Windows 'ping' command test?
Q. Which Windows tool can encrypt a single file or folder?
Q. Which Windows folder holds user-specific settings and data?
Q. Which command is used to shut down a Windows computer from CMD?
Q. What is 'msconfig' used for in Windows?
Q. Which Windows feature allows file backup and restore?
Q. Which Windows directory stores 64-bit system files?
Q. What is the default file manager in Windows?
Q. Which of the following can be used to uninstall a program?
Q. Which Windows feature protects against unauthorized drive access?
Q. What is the primary function of Windows Event Viewer?
Q. Which key is used to rename a file or folder in Windows?
Q. Which Windows folder contains the operating system files?
Q. Which folder holds temporary files in Windows?
Q. Which file format is used for Windows installation packages?
Q. Which Windows command line tool repairs the boot configuration data?
Q. Where are environment variables managed in Windows?
Q. Which Windows shortcut displays the desktop?
Q. What is the purpose of Safe Mode in Windows?
Q. Which Windows utility allows for disk cleanup?
Q. Which key combination forcefully closes an unresponsive program?
Q. What is the main function of the Windows Task Manager?
Q. Which tool in Windows can be used to manage disks and partitions?
Q. Which Windows component manages printers and print jobs?
Q. What does the 'chkdsk' command do?
Q. Which of the following is a hidden folder in Windows by default?
Q. What does 'sfc /scannow' do in Windows?
Q. Which version of Windows introduced Cortana?
Q. Which of these is NOT a Windows file system?
Q. What is the function of 'explorer.exe' in Windows?
Q. Which shortcut key refreshes the desktop or active window in Windows?
Q. Which of the following is used to compress files in Windows?
Q. Which Windows feature helps prevent unauthorized changes to the system?
Q. What does the Windows 'Snipping Tool' do?
Q. Which of these is used to open File Explorer quickly?
Q. What is the function of Windows Update?
Q. Which tool in Windows allows you to see background processes?
Q. Which file system is used by Windows for removable storage devices?
Q. What is the default extension of a Windows registry file?
Q. Which Windows utility allows you to edit the boot configuration?
Q. Which key is used to access Windows Boot Manager?
Q. Which tool allows you to restore Windows to an earlier point?
Q. What does Windows Defender protect against?
Q. Which command is used to display a list of files and folders in CMD?
Q. Which Windows version introduced the Start Menu tiles?
Q. Which feature allows you to manage multiple desktops in Windows?
Q. What is the purpose of the Windows Firewall?
Q. Which Windows feature helps to recover deleted files?
Q. Which tool provides detailed information about the system's hardware and software?
Q. What is the use of 'regedit' in Windows?
Q. Which Windows service is used to automatically assign IP addresses?
Q. What is the default port used by Remote Desktop Protocol (RDP) in Windows?
Q. Which Windows tool allows you to schedule automatic tasks?
Q. Which tool is used to encrypt specific files or folders in Windows?
Q. Which Windows process is responsible for displaying the GUI?
Q. Which shortcut minimizes all windows?
Q. Which Windows app provides a graphical interface for managing services?
Q. Which command opens the Device Manager?
Q. Which command-line utility repairs the master boot record?
Q. What is the Windows registry?
Q. Which Windows folder contains user profile information?
Q. What does the 'ping' command test?
Q. What does the 'netstat' command show?
Q. Which command is used to display the IP configuration of a system?
Q. Which Windows key shortcut locks the computer?
Q. What does the 'taskkill' command do?
Q. Which Windows component handles security and login authentication?
Q. Which tool is used to modify group policies in Windows?
Q. Which shortcut is used to open the Run dialog box?
Q. What does the Windows Action Center do?
Q. Which utility allows configuration of startup programs in Windows?
Q. What is the default file extension for a Windows batch file?
Q. Which Windows tool allows you to manage disk partitions?
Q. Which Windows feature restores the system to a previous working state?
Q. What does 'ping' command test in Windows?
Q. Which process is responsible for displaying the Windows graphical interface?
Q. What does 'Task Scheduler' in Windows do?
Q. What is the purpose of the 'format' command in Windows?
Q. Which shortcut opens the Windows Settings directly?
Q. Which of the following file systems is commonly used by Windows?
Q. Which Windows feature encrypts the entire drive to protect data?
Q. Which Windows tool helps clean up temporary and system files?
Q. Which file in Windows is responsible for storing user account information?
Q. What does the 'sfc /scannow' command do?
Q. Which Windows folder contains system files required for booting?
Q. Which Windows feature allows restoring system settings without affecting files?
Q. Which of the following is a Windows disk image file?
Q. What is the purpose of the Windows Event Viewer?
Q. Which Windows key combination opens the Task Manager directly?
Q. Which file extension is associated with Windows executable files?
Q. Which Windows component provides support for older programs?
Q. Which command is used to view or modify the Windows boot configuration?
Q. Which Windows tool helps users check and repair file system errors on a disk?
Q. Which Windows feature is used to automatically back up files to an external drive?
Q. What does the Windows 'msconfig' tool configure?
Q. Which Windows feature provides virtualization support for running Linux?
Q. Which Windows command lists active TCP and UDP connections?
Q. Which Windows tool is used to create system image backups?
Q. Which command opens the Windows Registry Editor?
Q. Which Windows service is responsible for printing tasks?
Q. What is the purpose of Windows Update?
Q. Which command is used to flush the DNS resolver cache in Windows?
Q. Which Windows utility can be used to monitor network usage per application?
Q. Which Windows feature allows you to pin frequently used apps to the taskbar?
Q. Which Windows tool is used for managing user accounts and groups?
Q. What does the 'shutdown /r' command do in Windows?
Q. Which Windows utility allows viewing hardware resource conflicts?
Q. Which Windows feature is used to configure network IP addresses manually?
Q. Which Windows folder contains temporary files created by the system and applications?
Q. Which Windows service manages the installation, removal, and updates of Windows software?
Q. What is the main function of the Windows Firewall?
Q. Which Windows command line tool is used to map network drives?
Q. Which Windows utility is used to restore files from previous versions or backups?
Q. Which file stores the list of programs that start automatically in Windows?
Q. Which Windows feature allows running applications in a lightweight virtual environment?
Q. Which Windows component is responsible for graphical user interface rendering?
Q. What is the purpose of the 'diskpart' command in Windows?
Q. Which Windows version first introduced the Cortana digital assistant?
Q. Which command is used to view the IP routing table in Windows?
Q. Which Windows feature allows users to recover deleted files?
Q. What is the purpose of the 'shutdown /s' command in Windows?
Q. Which of the following is NOT a valid Windows user account type?
Q. Which Windows command-line utility is used to view and configure network interfaces?
Q. Which Windows feature enables encryption of files and folders to protect data?
Q. What is the shortcut to open the Run dialog box in Windows?
Q. Which Windows folder contains user-specific application data?
Q. Which Windows utility is used to check system performance metrics?
Q. Which command line tool in Windows is used for managing network shares?
Q. What is the purpose of Windows Defender?
Q. Which protocol is commonly used by Windows for file and printer sharing?
Q. Which Windows utility allows you to manage startup programs easily?
Q. What does the 'gpedit.msc' utility in Windows do?
Q. Which Windows version introduced the Start Menu?
Q. What is the function of the 'netstat' command in Windows?
Q. Which Windows utility displays logs related to system and application events?
Q. What is the Windows feature called that allows multiple virtual desktops?
Q. Which Windows utility is used to clean unnecessary files and free disk space?
Q. Which folder contains Windows system files by default?
Q. What is the function of the 'sfc /scannow' command?
Q. Which key is used to access Safe Mode during Windows boot?
Q. Which tool in Windows allows scheduling tasks to run automatically?
Q. Which file extension is used for Windows executable files?
Q. Which Windows component manages startup programs and services?
Q. Which Windows utility allows you to view and manage installed device drivers?
Q. What does the 'ipconfig' command do in Windows?
Q. Which Windows feature allows creating restore points to revert system state?
Q. Which Windows command line tool is used to check and repair disk errors?
Q. What does the Windows Registry store?
Q. Which key combination opens the Task Manager in Windows?
Q. Which Windows feature provides a graphical interface for managing computer settings?
Q. What does the Windows Task Manager allow you to do?
Q. Which tool in Windows is used to manage disks and partitions?
Q. What is the default file system used by Windows 10?
Q. What is the use of the 'passwd' command?
Q. Which command is used to switch to another user account?
Q. Which command is used to download files from the internet via command line?
Q. How do you list all running services on a system using systemd?
Q. Which command is used to check disk space usage?
Q. What does the 'chmod 644 file' command do?
Q. Which command is used to display all open network connections?
Q. Which command is used to display the system hostname?
Q. What does the 'ln -s' command do?
Q. How can you display the first 10 lines of a file?
Q. Which command lists all mounted file systems?
Q. Which command can be used to monitor real-time system resource usage?
Q. Which command is used to display a calendar in Linux?
Q. What is the default permission for newly created files?
Q. Which file stores the list of services started at boot time?
Q. What is the purpose of the 'alias' command?
Q. What does the 'ps' command do?
Q. Which command is used to check the current working directory?
Q. What is the default shell in most Linux distributions?
Q. Which command creates a new empty file or updates timestamp of an existing file?
Q. Which command shows memory usage statistics?
Q. What is the purpose of the 'grep' command?
Q. Which command shows the last login details of users?
Q. Which file controls the shell startup configuration for a user?
Q. Which command is used to see the environment variables of the current shell?
Q. How do you display the contents of a compressed tar archive?
Q. Which command is used to remove a directory and its contents?
Q. Which command is used to display the contents of a file page by page?
Q. What does the 'uname -r' command display?
Q. Which command shows disk partitions and their sizes?
Q. What is the use of the 'sudo' command?
Q. Which command displays the IP address of the system?
Q. Which command is used to rename a file?
Q. Which directory contains user home directories by default?
Q. Which command will recursively list all files and directories?
Q. What does the 'env' command do?
Q. Which command is used to display the current user's username?
Q. Which command is used to find files by name?
Q. What is the role of the 'cron' daemon in Linux?
Q. Which command will display the last 10 lines of a log file in real time?
Q. Which command is used to change a file's permissions numerically?
Q. Which command shows the manual for systemd service management?
Q. What does the 'mount' command do?
Q. Which file contains the list of user groups?
Q. How do you switch to the root user account in Linux?
Q. Which command will show current system uptime?
Q. Which command can be used to find the location of an executable file in the system PATH?
Q. Which of the following commands will display disk usage of a directory and its contents?
Q. Which command is used to change a file's timestamp?
Q. What is the function of the 'uname -a' command?
Q. What is the purpose of the 'chmod 755 filename' command?
Q. Which command is used to view the contents of a compressed gzip file without decompressing it?
Q. What is the default port number for SSH service?
Q. Which command is used to schedule recurring jobs in Linux?
Q. Which command shows all user groups of the current user?
Q. Which command is used to check disk input/output performance?
Q. Which directory contains system log files?
Q. What is the use of the 'alias' command?
Q. Which signal is sent by default when using the 'kill' command?
Q. Which command is used to copy files or directories?
Q. How can you display the manual page for the 'ls' command?
Q. Which command shows real-time system processes and resource usage?
Q. What does the 'df' command do?
Q. Which command is used to update package index on Debian-based systems?
Q. Which file contains the list of mounted filesystems?
Q. What is the command to display the first 15 lines of a file?
Q. Which command will show all open files on the system?
Q. What does the 'tar -xvf archive.tar' command do?
Q. Which command displays the current directory path?
Q. What is the function of the 'kill' command?
Q. Which of the following commands will display hidden files when listing directory contents?
Q. What is the purpose of the 'ps' command?
Q. Which command is used to change the group ownership of a file?
Q. Which command shows all available disks and partitions in a tree format?
Q. Which directory contains user home directories?
Q. Which command is used to change the priority of a running process?
Q. How do you display the last 20 lines of a file?
Q. Which command will compress files using gzip?
Q. What does the 'history' command do?
Q. Which command lists users currently logged in?
Q. What is the function of the 'sudo' command?
Q. Which command is used to schedule a job to run once at a specific time?
Q. Which command can be used to search for a string inside files?
Q. Which command is used to show disk partition information?
Q. Which file contains system-wide environment variables?
Q. Which command will display all active network connections?
Q. Which command is used to change file ownership?
Q. Which file defines network interfaces on Debian-based systems?
Q. Which command displays the current user's username?
Q. What does the 'ln -s source target' command do?
Q. Which command is used to display the contents of a text file one page at a time?
Q. Which command is used to display or change the current directory?
Q. Which command is used to list mounted filesystems?
Q. What does the 'scp' command do?
Q. Which file contains user passwords in encrypted form?
Q. Which command is used to display kernel messages?
Q. Which command can be used to monitor network traffic in Linux?
Q. What does the 'basename' command do?
Q. Which command is used to safely remove a USB drive?
Q. Which command shows memory usage of running processes?
Q. What does the 'tail -n 10 filename' command do?
Q. Which command is used to reboot the Linux system?
Q. How can you display hidden files in a directory?
Q. Which command is used to add a user in Linux?
Q. Which command displays all environment variables?
Q. What is the purpose of the 'cron' daemon in Linux?
Q. Which command is used to check kernel version?
Q. What does the command 'chmod 755 filename' do?
Q. Which command is used to display detailed information about a file?
Q. Which Linux command is used to monitor real-time system resource usage?
Q. Which command is used to lock a user account in Linux?
Q. Which command is used to decompress .gz files in Linux?
Q. Which command is used to create a new empty file?
Q. What is the use of the 'export' command in Linux?
Q. Which command displays the hostname of the system?
Q. Which command is used to display open files by processes?
Q. Which command is used to change file timestamps?
Q. What does the 'ps -ef' command show?
Q. Which command is used to view and manipulate user groups?
Q. Which command is used to check system memory usage?
Q. What is the use of the 'chmod 644 filename' command?
Q. Which command is used to display network interface configurations?
Q. What does the 'df' command display?
Q. Which directory stores log files in Linux?
Q. Which command shows the current runlevel of the system?
Q. What is the function of the 'alias' command in Linux?
Q. Which Linux command is used to view running system services?
Q. Which file stores the system hostname in Linux?
Q. Which command can be used to check disk inode usage?
Q. What is the default shell for most Linux distributions?
Q. Which command is used to kill a process by its PID?
Q. Which Linux command displays the last lines of a log file continuously?
Q. Which command is used to update the package list on Debian-based systems?
Q. Which directory in Linux contains temporary files?
Q. Which Linux command displays the current logged-in users?
Q. Which command is used to check open ports and active connections in Linux?
Q. What is the use of the 'scp' command in Linux?
Q. Which file contains the list of hosts allowed for SSH login?
Q. Which command is used to schedule one-time tasks in Linux?
Q. Which command is used to switch user accounts in Linux?
Q. What is the function of the 'grep' command in Linux?
Q. Which command is used to list all files, including hidden ones, in a directory?
Q. Which command shows the manual pages of a command?
Q. Which Linux command is used to change the ownership of a file?
Q. What does the 'nohup' command do?
Q. Which command displays disk free space usage in human-readable format?
Q. Which command is used to permanently add a new environment variable in Linux?
Q. Which command is used to display all mounted block devices in Linux?
Q. Which command will show the last reboot time of the system?
Q. Which command is used to check the current IP address of your machine?
Q. What is the default port for SSH connections?
Q. Which command shows mounted filesystems and their mount points?
Q. What is the function of the 'iptables' command in Linux?
Q. Which command is used to display disk usage of files and directories?
Q. What does the 'ln -s' command do in Linux?
Q. Which command is used to extract files from a .tar.gz archive?
Q. Which command can be used to display running processes and their resource usage?
Q. What does the 'chmod 755 filename' command do?
Q. Which command is used to display all environment variables in Linux?
Q. Which file contains user account information in Linux?
Q. What is the command to copy files and directories recursively?
Q. Which command is used to display the current working directory?
Q. How do you display the last 50 lines of a file in Linux?
Q. What is the purpose of the /etc/fstab file in Linux?
Q. Which command will show the currently running kernel version?
Q. Which command in Linux is used to display disk partition information?
Q. Which command is used to view the first 20 lines of a file?
Q. Which command is used to add a new group in Linux?
Q. Which directory contains device files in Linux?
Q. Which command lists installed packages on Debian-based systems?
Q. What does the 'uptime' command show?
Q. Which command is used to find files by name in Linux?
Q. Which command is used to view the contents of a compressed .gz file without extracting?
Q. What is the function of the 'sudoers' file?
Q. Which command is used to display the current user's username in Linux?
Q. Which command is used to compress files using tar and gzip in Linux?
Q. Which Linux command is used to check the disk filesystem type?
Q. Which command is used to display kernel messages in Linux?
Q. What does the 'alias' command do in Linux?
Q. Which file stores information about groups in Linux?
Q. Which Linux command is used to monitor system processes in real-time?
Q. Which command is used to check the free and used memory in Linux?
Q. What does the 'cron' daemon do in Linux?
Q. Which command is used to change the default runlevel in Linux?
Q. What is the command to display all active network connections in Linux?
Q. Which command is used to display detailed information about a specific file or directory?
Q. Which file contains user passwords in Linux?
Q. What does the 'tar' command do in Linux?
Q. Which command is used to change permissions recursively in Linux?
Q. Which file contains system log messages in Linux?
Q. Which command is used to create a new user in Linux?
Q. Which command is used to display user groups in Linux?
Q. What does the 'kill' command do?
Q. What is the function of the 'grep' command?
Q. Which command is used to mount a filesystem in Linux?
Q. How do you list all files including hidden files in Linux?
Q. Which command shows the manual page for a command?
Q. Which command is used to display the environment variables in Linux?
Q. What does the 'df -h' command do?
Q. Which directory contains user home directories in Linux?
Q. Which command is used to schedule a one-time task in Linux?
Q. Which file contains the list of startup scripts in Linux?
Q. What is the default shell used in most Linux distributions?
Q. Which command displays the network configuration on a Linux system?
Q. Which command is used to change file ownership in Linux?
Q. What does the 'uname' command do in Linux?
Q. Which command is used to compress files in Linux?
Q. Which file stores user account information in Linux?
Q. What is the purpose of the 'sudo' command in Linux?
Q. Which command shows the currently logged-in users?
Q. Which symbol is used to redirect output to a file in Linux?
Q. Which command is used to display manual pages in Linux?
Q. Which command shows the last lines of a file in Linux?
Q. Which command is used to display disk usage in Linux?
Q. Which command is used to remove files in Linux?
Q. Which directory contains system configuration files in Linux?
Q. Which command shows the current running processes in Linux?
Q. Which command is used to search text in files in Linux?
Q. Which command displays the first few lines of a file in Linux?
Q. What does the 'chmod' command do in Linux?
Q. Which command moves or renames files in Linux?
Q. Which command is used to copy files in Linux?
Q. Which command is used to view the contents of a file in Linux?
Q. What is the command to display the current working directory?
Q. Which command is used to change the current directory in Linux?
Q. What does the PATH command do in MS-DOS?
Q. Which command is used to remove a file attribute in MS-DOS?
Q. Which command is used to display or set the system environment variables?
Q. Which command lists the files in a directory sorted by size?
Q. What does the RENAME command do in MS-DOS?
Q. Which command copies the contents of one disk to another?
Q. Which MS-DOS command can be used to print a file?
Q. Which command can be used to stop a batch file execution?
Q. How do you view the contents of a batch file in MS-DOS?
Q. Which of these is NOT a valid MS-DOS file attribute?
Q. Which MS-DOS command is used to display or change the system date?
Q. Which command shows the first few lines of a text file in MS-DOS?
Q. Which command is used to delete files in MS-DOS?
Q. Which command is used to create a new directory in MS-DOS?
Q. What is the maximum filename length supported by MS-DOS?
Q. Which command displays the amount of free disk space on a drive?
Q. What is the purpose of the COMMAND.COM file?
Q. How do you display hidden system files in MS-DOS?
Q. Which command is used to format a floppy disk in MS-DOS?
Q. What does the AUTOEXEC.BAT file do in MS-DOS?
Q. Which command can be used to abort a running command in MS-DOS?
Q. What is the function of the DELTREE command?
Q. What does the ECHO OFF command do in a batch file?
Q. Which command removes read-only, hidden, and system attributes?
Q. What is the role of IO.SYS in MS-DOS?
Q. Which command is used to compare the contents of two files?
Q. How do you display the current time in MS-DOS?
Q. Which command displays all subdirectories under a directory?
Q. Which file system is commonly used with MS-DOS?
Q. What does the CLS command do?
Q. Which command shows all running processes in MS-DOS?
Q. Which DOS command is used to display the current version of MS-DOS?
Q. Which key combination pauses the output of a command on the screen?
Q. Which MS-DOS command is used to move files from one directory to another?
Q. Which command is used to copy both files and directories?
Q. What symbol is used in MS-DOS to redirect output to a file?
Q. What is the function of the COPY CON command?
Q. Which command in MS-DOS allows you to exit from the command interpreter?
Q. Which MS-DOS command checks and repairs disk errors?
Q. Which command in MS-DOS is used to view the contents of a file one screen at a time?
Q. What does the command TREE do in MS-DOS?
Q. Which file holds device driver loading information in MS-DOS?
Q. Which command shows current directory's full path?
Q. What is the function of the DOSKEY command?
Q. Which switch with DIR command displays the results in bare format?
Q. Which MS-DOS command is used to print the contents of a file?
Q. Which command allows you to append text to an existing file using the console?
Q. Which MS-DOS command allows you to remove a directory only if it is empty?
Q. What is the function of FDISK in MS-DOS?
Q. What is the primary purpose of CONFIG.SYS in MS-DOS?
Q. Which command is used to display the contents of a directory including file attributes?
Q. What is the extension of a system file in MS-DOS?
Q. Which file must be present to boot MS-DOS?
Q. Which command is used to change file attributes in MS-DOS?
Q. What does the VOL command display?
Q. Which command is used to list all files and directories in the current directory in MS-DOS?
Q. How do you switch from one drive to another in MS-DOS?
Q. Which file is the DOS command interpreter?
Q. Which command shows a summary of memory usage?
Q. What is the function of the DEL command?
Q. Which command creates a new directory?
Q. Which command shows all current environment variables?
Q. What is the default prompt in MS-DOS?
Q. Which MS-DOS command lists all files, including hidden and system files?
Q. How do you terminate input when using the COPY CON command?
Q. Which MS-DOS command is used to view or set the date?
Q. What is the maximum length for a filename in MS-DOS?
Q. Which MS-DOS command is used to display disk space usage?
Q. Which file contains commands that are executed at startup in MS-DOS?
Q. Which MS-DOS command is used to clear the screen?
Q. Which character is used for command chaining in MS-DOS?
Q. What is the function of the PATH command in MS-DOS?
Q. Which MS-DOS command is used to change the file name?
Q. Which MS-DOS command is used to display the contents of a text file?
Q. What does the command 'COPY CON FILE.TXT' do?
Q. Which of the following is a wildcard character in MS-DOS?
Q. What is the use of the FC command in MS-DOS?
Q. Which command displays version information in MS-DOS?
Q. What does the /S switch do with the FORMAT command?
Q. How do you prevent a command from being displayed while executing a batch file?
Q. Which file is responsible for storing default environment variables?
Q. What does the /P switch do with the DIR command?
Q. Which command is used to view and set the system time?
Q. What does the command FORMAT C: do?
Q. Which file stores keyboard and display drivers in MS-DOS?
Q. Which command is used to create a new file in MS-DOS?
Q. What is the function of the REM command?
Q. What is the purpose of the ECHO command?
Q. Which command is used to delete a directory in MS-DOS?
Q. What does the ATTRIB command do in MS-DOS?
Q. Which command is used to check and repair disk errors in MS-DOS?
Q. Which file is responsible for initializing the DOS environment?
Q. What is the maximum partition size supported by MS-DOS using FAT16?
Q. Which key combination is used to abort a command in progress in MS-DOS?
Q. What is the function of the VOL command?
Q. Which MS-DOS command shows the current working directory?
Q. What does the XCOPY command do?
Q. Which command displays all hidden files in a directory?
Q. What happens when you type CD\ at the prompt?
Q. What is the role of COMMAND.COM in MS-DOS?
Q. Which command shows memory usage in MS-DOS?
Q. What is the use of the SET command?
Q. Which file is responsible for loading device drivers during boot in MS-DOS?
Q. Which command is used to rename files in MS-DOS?
Q. What does the '>' operator do in MS-DOS?
Q. Which command is used to list files including subdirectories?
Q. What is the function of the LABEL command?
Q. Which command is used to combine the contents of two files?
Q. Which command is used to exit from the command prompt in MS-DOS?
Q. Which of the following is not a valid file attribute in MS-DOS?
Q. Which command is used to copy an entire disk in MS-DOS?
Q. What does the command DEL *.* do in MS-DOS?
Q. What does the DIR command do in MS-DOS?
Q. Which command is used to see system date and time together?
Q. What is the use of NUL in MS-DOS?
Q. Which command is used to append one file to another?
Q. What is the extension of command files in MS-DOS?
Q. Which file stores command history in DOSKEY?
Q. Which command is used to run a program in MS-DOS?
Q. Which command is used to redirect output to a file?
Q. What is the use of the PATH command in MS-DOS?
Q. Which command is used to terminate a batch file before its end?
Q. What is the use of the PROMPT command in MS-DOS?
Q. Which command is used to move from one directory to another in MS-DOS?
Q. How many characters are allowed in a file name (including extension) in MS-DOS?
Q. Which command allows a user to create a new directory?
Q. Which of the following is a system file in MS-DOS?
Q. Which command is used to repeat the last command in MS-DOS?
Q. What is the function of the TREE command in MS-DOS?
Q. What is the function of AUTOEXEC.BAT file in MS-DOS?
Q. What is the default file extension for batch files in MS-DOS?
Q. Which command displays only filenames in lowercase?
Q. What happens if you try to delete a directory that is not empty using RMDIR?
Q. Which command allows you to rename a file in MS-DOS?
Q. What is the result of the command 'COPY file1.txt file2.txt'?
Q. Which command in MS-DOS displays disk space usage?
Q. What is the role of CONFIG.SYS in MS-DOS?
Q. Which command displays the list of files and directories in wide format?
Q. Which command is used to restart the system from MS-DOS?
Q. Which key combination is used to cancel the current command execution in MS-DOS?
Q. Which command in MS-DOS allows viewing and modifying the contents of memory?
Q. What is the function of the 'CHKDSK' command in MS-DOS?
Q. Which command is used to hide files in MS-DOS?
Q. Which of the following is used to change file attributes in MS-DOS?
Q. Which of the following is not an internal command in MS-DOS?
Q. Which DOS file system was introduced to support larger disks?
Q. Which command shows the version of MS-DOS running on the system?
Q. What is the maximum filename length in MS-DOS (excluding extension)?
Q. Which command shows all commands typed in the current session?
Q. What does the command 'FORMAT C:' do in MS-DOS?
Q. What is the purpose of the 'PATH' command in MS-DOS?
Q. Which command in MS-DOS is used to call another batch file from within a batch file?
Q. Which command sets environment variables in MS-DOS?
Q. Which command will delete all files in a directory without prompting?
Q. What is the default file extension for backup files in MS-DOS?
Q. Which of the following is a valid drive letter assignment in MS-DOS?
Q. What is the function of the FDISK command in MS-DOS?
Q. Which command is used to display a file's contents in hexadecimal?
Q. Which command is used to view the list of all running TSR (Terminate and Stay Resident) programs?
Q. Which command is used to compare two files in MS-DOS?
Q. What is the purpose of the 'LABEL' command in MS-DOS?
Q. Which command is used to terminate a program forcibly in MS-DOS?
Q. Which command sets the system time in MS-DOS?
Q. Which MS-DOS command is used to list the files in a subdirectory structure?
Q. Which command is used to check memory usage in MS-DOS?
Q. Which command is used to list all files, including hidden ones?
Q. Which command in MS-DOS is used to create a file?
Q. What does the command 'DIR /P' do in MS-DOS?
Q. Which command is used to display or modify the system date in MS-DOS?
Q. Which MS-DOS version first supported hard disks?
Q. Which MS-DOS command is used to terminate all batch file processing?
Q. In MS-DOS, which file extension indicates a system file?
Q. Which command allows you to schedule programs or batch files in MS-DOS?
Q. Which command is used to print a text file in MS-DOS?
Q. Which command is used to rename directories in MS-DOS?
Q. Which DOS command is used to end the session and return to the previous command processor?
Q. What does the DOS command 'ATTRIB' do?
Q. Which command is used to display hidden files in MS-DOS?
Q. Which DOS command is used to copy the entire disk?
Q. Which file contains DOS kernel code?
Q. How many primary partitions can MS-DOS support on a hard disk?
Q. Which MS-DOS command pauses the execution of a batch file?
Q. Which MS-DOS command provides help information?
Q. Which command is used to move files in MS-DOS?
Q. Which command clears the screen in MS-DOS?
Q. What is the default file extension for executable files in MS-DOS?
Q. Which command shows the current directory in MS-DOS?
Q. Which character is used as a wildcard in MS-DOS?
Q. What is the purpose of AUTOEXEC.BAT in MS-DOS?
Q. Which command is used to display the contents of a text file in MS-DOS?
Q. Which drive letter is usually assigned to the first floppy disk drive in MS-DOS?
Q. Which DOS command is used to check and repair disk errors?
Q. Which command is used to format a disk in MS-DOS?
Q. Which extension is used for batch files in MS-DOS?
Q. Which key is used to abort a command in MS-DOS?
Q. Which command is used to remove a directory in MS-DOS?
Q. Which file contains internal commands in MS-DOS?
Q. What is the function of the CONFIG.SYS file in MS-DOS?
Q. Which command is used to rename a file in MS-DOS?
Q. Which command shows the version of MS-DOS?
Q. Which command is used to copy files in MS-DOS?
Q. Which version of Windows was the last to be based on MS-DOS?
Q. Which command is used to change the working directory?
Q. What is the maximum filename length in MS-DOS?
Q. Which MS-DOS command is used to create a directory?
Q. What type of user interface does MS-DOS use?
Q. Which is the command to remove a file in MS-DOS?
Q. Which command is used to list files in MS-DOS?
Q. Which file is responsible for booting MS-DOS?
Q. What does MS-DOS stand for?
Q. What is the purpose of role-based access control (RBAC)?
Q. Which Python module is used to generate cryptographic hashes like SHA256?
Q. What is the main purpose of input validation in security?
Q. Which is a recommended practice when logging sensitive data?
Q. What does TLS stand for in network security?
Q. Which Python function is unsafe to use with untrusted input due to code execution risks?
Q. Which of these is a secure way to store API keys in a Python application?
Q. What is the role of a firewall in application security?
Q. Which Python library is useful for SSL/TLS communication?
Q. Which function can be used to securely compare two strings to avoid timing attacks?
Q. How can you prevent Cross-Site Request Forgery (CSRF) in a Python web app?
Q. What is Cross-Site Scripting (XSS)?
Q. Which Python package is commonly used for implementing JWT (JSON Web Tokens)?
Q. Which method helps prevent SQL Injection in Python applications?
Q. Which Python module provides tools for generating random secure tokens?
Q. What does the term 'salting' mean in password hashing?
Q. Which hashing algorithm is considered secure for password hashing?
Q. What is the purpose of hashing passwords before storing them?
Q. Which Python library is commonly used for cryptographic operations?
Q. What happens if you forget to close a file after opening?
Q. What does the method readlines() return?
Q. How to write Unicode data to a file?
Q. Which exception is raised if you try to read from a file opened in 'w' mode?
Q. What is the purpose of the close() method?
Q. How to open a file for writing in binary mode?
Q. What will happen if you call read() after reading the entire file once?
Q. If you want to write to a file but avoid overwriting existing content, which mode should you use?
Q. Which mode allows you to read and write without truncating the file?
Q. What will this code do? file = open('data.txt', 'r') data = file.read() file.close()
Q. Which statement is true about 'a' mode?
Q. How do you check the current position of the file pointer?
Q. What will happen if you try to open a file in 'x' mode that already exists?
Q. How can you write multiple lines to a file efficiently?
Q. Which method can move the file pointer to a specific position?
Q. What is the use of the 'with' statement when working with files?
Q. Which method reads all lines of a file into a list?
Q. How can you open a file for both reading and appending?
Q. Which method reads the entire content of a file as a single string?
Q. Which exception is raised for an invalid file path?
Q. What happens if close() is called twice on the same file?
Q. How to rename a file in Python?
Q. Which function lists all files in a directory?
Q. Which method would you use to reset the file pointer to the start?
Q. What will happen if you write a list directly to a file using write()?
Q. Which file mode should you use to avoid overwriting an existing file?
Q. How to delete a file in Python?
Q. Which method is used to truncate a file?
Q. Which module helps in working with file paths?
Q. What type of object is returned by open()?
Q. Which method is used to write a new line in a file?
Q. How do you check if a file is closed?
Q. Which of the following is a valid file mode?
Q. What is the default file mode in open() function?
Q. How to read a file line by line using a loop?
Q. What happens if you open a file in 'w' mode that already exists?
Q. Which statement is true about file handling in Python?
Q. Which method writes a string to a file?
Q. Which error is raised when trying to open a non-existent file in 'r' mode?
Q. Which method reads all lines from a file into a list?
Q. What does 'b' in file mode signify?
Q. Which function checks if a file exists?
Q. Which method closes a file?
Q. Which file mode creates a new file and allows writing?
Q. What will happen if you call read() after reaching the end of the file?
Q. Which file mode is used to read and write both?
Q. Which method moves the file pointer to a specific location?
Q. How can you write multiple lines to a file at once?
Q. Which method reads one line at a time from a file?
Q. What will open('data.txt', 'x') do if data.txt already exists?
Q. What is the correct way to ensure a file is closed automatically?
Q. Which method reads the entire content of a file at once?
Q. What does the 'a' mode do when opening a file?
Q. Which mode is used to write to a file, creating it if it doesn't exist?
Q. Which method is used to open a file in Python?
Q. Which operator is used to check if a value exists in a list?
Q. Which method removes all elements from a set?
Q. Which of these data structures supports indexing?
Q. Which function is used to find the maximum value in a list?
Q. What is the result of list(range(3))?
Q. Which built-in function returns a new sorted list from an iterable?
Q. Which data structure is best for representing a fixed collection of values?
Q. What is the result of {'a':1, 'b':2}.values()?
Q. How do you remove an element by value from a list?
Q. Which data structure is best for fast membership testing?
Q. Which of the following is true about sets?
Q. Which method inserts an element at a specific index in a list?
Q. What is the type of {} in Python?
Q. What does dict.get('key') return if 'key' is not found?
Q. How do you access the second element in a list x = [10, 20, 30]?
Q. Which operator is used to merge two sets?
Q. Which method is used to add multiple items to a list?
Q. What is the output of list(set([1, 2, 2, 3]))?
Q. Which data structure can be used as a key in a dictionary?
Q. What will be the output of len((1, 2, 3, 4))?
Q. What does the update method do in a dictionary?
Q. Which structure is ideal for storing data in a key-value format?
Q. How do you check if a key exists in a dictionary?
Q. Which method returns all items in a dictionary as pairs?
Q. What will be the output of list((1, 2, 3))?
Q. What is the result of set('aabcc')?
Q. Which function returns the smallest item from a list?
Q. What will list('abc') return?
Q. Which method is used to reverse a list in place?
Q. Which data structure allows multiple data types?
Q. How do you define an empty tuple?
Q. Which data structure is unordered and unindexed?
Q. Which method is used to remove a key from a dictionary?
Q. Which method adds an item to a set?
Q. What is the result of {'a', 'b'} & {'b', 'c'}?
Q. Which data structure uses keys and values?
Q. What is the output of len({'a':1,'b':2})?
Q. Which method is used to remove all elements from a list?
Q. Which data structure is immutable?
Q. Which data structure allows duplicate elements and maintains order?
Q. Which of the following is used to read a file in Python?
Q. Which operator is used for logical AND in Python?
Q. Which statement is used to skip the current iteration in a loop?
Q. What is the output of type(True)?
Q. Which method is used to get all values from a dictionary?
Q. Which function is used to convert an integer to a string?
Q. Which method returns the number of items in a dictionary?
Q. What will be the output of print('abc'.upper())?
Q. Which of the following is not a valid loop type in Python?
Q. Which method returns a list of dictionary keys?
Q. What is the result of 'Python'[-1]?
Q. Which of the following is used to define an empty dictionary?
Q. What is the output of print(9 // 2)?
Q. Which of the following is used to define a dictionary?
Q. Which method can be used to replace a substring in a string?
Q. What will be the output of print(bool(0))?
Q. Which keyword is used to define a loop that executes as long as a condition is true?
Q. What does the pop method do in a list?
Q. Which of the following is the correct way to comment a single line in Python?
Q. Which of the following is not a valid Python variable name?
Q. Which function is used to sort a list?
Q. Which data structure does not allow duplicate elements?
Q. Which function returns the largest value from a list?
Q. Which method adds an item to the end of a list?
Q. What will be the output of 7 % 3?
Q. What is the output of type(3.0)?
Q. What is the keyword to declare a class?
Q. What is the result of 4 + 3 * 2?
Q. Which function converts a string to lowercase?
Q. What will be the output of print(len('Hello'))?
Q. What is the correct way to start a function in Python?
Q. What does the strip method do in Python?
Q. Which keyword is used to stop a loop in Python?
Q. What is the result of 3 * 1 ** 3?
Q. What is the role of @property in Python classes?
Q. What is the output of this code?
Q. Which principle hides internal object details?
Q. Which of these is not a special method in Python?
Q. Which method is used to override the default behavior of the + operator?
Q. How is polymorphism achieved in Python?
Q. What is output of the following?
Q. What is duck typing in Python?
Q. What is the purpose of __slots__ in Python classes?
Q. Which of the following defines a property in Python?
Q. How are class variables shared among instances?
Q. Which method is automatically called when an object is converted to a string using str()?
Q. What happens if __str__() is not defined in a class?
Q. Which of the following is an example of composition in OOP?
Q. Which method is used to represent the object in an unambiguous way?
Q. What is the MRO (Method Resolution Order)?
Q. What is true about multiple inheritance in Python?
Q. Which of the following defines inheritance in Python?
Q. What does `__dict__` do in a Python object?
Q. Which of the following will make `attr` a read-only property?
Q. Which of the following methods is called when an object is printed?
Q. What is true about encapsulation?
Q. What will be the result of the following code?
Q. Which method is used to initialize an object in Python?
Q. Which of the following is used to create a static method?
Q. What is the output of the following code?
Q. Which special method allows an object to be called like a function?
Q. Which function checks if a class is subclass of another?
Q. What is output of the following code?
Q. Which symbol is used to indicate that a member is private?
Q. What is the purpose of `__del__()` method in Python?
Q. Which decorator is used to create a class method?
Q. Which of the following is NOT true about class methods?
Q. What is the output of this code?
Q. Which function is called automatically when an object is created?
Q. Which of the following keywords is used to inherit a class in Python?
Q. What is `super()` used for in Python OOP?
Q. In which situation is method overloading possible in Python?
Q. Which of these is not a type of method in Python classes?
Q. Which method returns a string that is meant to be unambiguous?
Q. How do you make a method private in Python?
Q. Which method is used to compare two Python objects?
Q. Which of the following is true about `__repr__()`?
Q. What is multiple inheritance?
Q. What does the `isinstance()` function check?
Q. Which of the following is correct for creating an object in Python?
Q. What is the default access modifier for members of a class?
Q. Which method is used to define string conversion of an object?
Q. How do you create a class attribute in Python?
Q. What will the following code print?
Q. How can we prevent a class from being inherited?
Q. What is true about instance methods in Python?
Q. Which of the following is NOT a feature of OOP in Python?
Q. What is true about `__str__()` in a class?
Q. Which of these best describes a constructor in Python?
Q. Which of the following allows multiple inheritance?
Q. What does `@staticmethod` indicate?
Q. Which of the following is used to define a class method?
Q. Which method is called when an object is deleted?
Q. What is the output? ```python class A: x = 10 a = A() b = A() a.x = 20 print(b.x) ```
Q. Which of the following is true about class variables?
Q. What is polymorphism in Python OOP?
Q. Which of these is used to call a method from a parent class?
Q. How do you define a private variable in Python?
Q. What is encapsulation in OOP?
Q. Which built-in function is used to get the class name of an object?
Q. Which keyword is used to inherit from a class?
Q. What is inheritance in Python?
Q. What does the `self` keyword in a class method refer to?
Q. Which method is called automatically when an object is created?
Q. Which of the following is the correct way to define a class in Python?
Q. What is the output of the following code?
Q. What does the `any()` function return?
Q. Which function converts an iterable to a list?
Q. What is the use of the `is` keyword in Python?
Q. Which module in Python is used for regular expressions?
Q. Which method removes the last item from a list?
Q. What does `del` keyword do?
Q. What does `zip()` function do?
Q. Which of the following opens a file for reading?
Q. What will `print({1, 2, 3} & {2, 3, 4})` output?
Q. Which of the following is not allowed in Python variable names?
Q. Which of the following is the correct syntax for a list comprehension?
Q. What will be the result of `round(3.14159, 2)`?
Q. What is the output of: `print('5' * 3)`?
Q. Which keyword is used to create an anonymous function?
Q. What is the output of: `print(type(lambda x: x))`?
Q. Which of the following is used to define a block of code in Python?
Q. Which function is used to remove whitespace from the start and end of a string?
Q. Which function is used to iterate with index in a loop?
Q. Which data type is used to store True or False values?
Q. Which method is used to convert all characters in a string to uppercase?
Q. Which function is used to get the ASCII value of a character?
Q. Which method adds an item at a specific index in a list?
Q. Which statement is used to exit a loop?
Q. What is the output of `print('hello'.capitalize())`?
Q. What is returned by `list(range(2, 10, 2))`?
Q. Which of the following is a private variable in Python by convention?
Q. What keyword is used to inherit a class in Python?
Q. What is the output of `bool([])`?
Q. What is the purpose of `__init__` method in classes?
Q. Which function returns the Unicode code of a character?
Q. What is the output of `print(0.1 + 0.2 == 0.3)`?
Q. What does the `finally` block do?
Q. Which function is used to get input from users?
Q. Which operator is used for string repetition?
Q. What does `pass` keyword do in Python?
Q. What will `print(10//3)` display?
Q. Which of these is not a built-in Python data type?
Q. Which function converts an integer to a string?
Q. What is the result of `'a' + 'b'`?
Q. Which of the following is a valid list declaration?
Q. What is the output of: print(type(10))?
Q. Which symbol is used for single-line comments?
Q. Which loop is used to iterate over a sequence?
Q. Which method returns the number of items in a list?
Q. Which data structure does not allow duplicate values?
Q. Which function converts a string to an integer in Python?
Q. What is the output of: print(2 ** 3)?
Q. What is the output of `print(2 ** 3 ** 2)`?
Q. Which method is used to remove a specific item from a set?
Q. What is the output of `print(bool(0))`?
Q. Which of these keywords is used to create a generator?
Q. What is the result of `set([1,2,2,3])`?
Q. Which of the following will create a tuple?
Q. What will be the result of `print(5//2)`?
Q. Which function is used to determine the data type of an object?
Q. What does `range(1, 10, 2)` return?
Q. Which of the following is used to handle files in Python?
Q. What is the output of `print('abc'.upper())`?
Q. Which of these is a correct list comprehension syntax?
Q. What is the purpose of `*args` in function definitions?
Q. What is the default return value of a function that doesn't explicitly return anything?
Q. What keyword is used to define an anonymous block that does nothing?
Q. What is the result of `bool([])`?
Q. What is the purpose of `__init__` method in Python classes?
Q. What does `is` operator compare?
Q. What will `print('abc' * 2)` output?
Q. What is the output of `type({})`?
Q. What does `enumerate()` do?
Q. Which of these can be used as keys in a dictionary?
Q. What is the output of `print(list('abc'))`?
Q. Which of the following is used to create a new class?
Q. What is the result of `len(set([1,2,2,3]))`?
Q. Which statement is used to skip the current iteration of a loop?
Q. Which method adds multiple elements to a list?
Q. What will `print(0.1 + 0.2 == 0.3)` output?
Q. Which of the following removes an item from a list by index?
Q. What will be the output of `bool('False')`?
Q. Which of the following is a valid way to import a module?
Q. Which operator is used for exponentiation in Python?
Q. What does the `input()` function return?
Q. Which of these data types is unordered?
Q. What is the output of `print('5' + '5')`?
Q. What will be the result of `len({1, 2, 2, 3})`?
Q. Which of the following checks if a key exists in a dictionary?
Q. How can you comment a single line in Python?
Q. Which Python keyword is used to declare a function?
Q. Which of the following is not a comparison operator?
Q. Which method is used to break a loop?
Q. What is the output of `print(10 % 3)`?
Q. Which module in Python supports regular expressions?
Q. Which method is used to convert a list to a tuple?
Q. Which of the following opens a file for writing?
Q. Which method can be used to remove whitespace from the beginning of a string?
Q. What is the result of `3 * 'abc'`?
Q. How do you insert an element at the end of a list?
Q. Which of the following creates a dictionary?
Q. Which of the following is not a valid Python loop?
Q. What is the default encoding for Python source files?
Q. Which keyword is used for function annotations?
Q. What is the output of `print(type([]))`?
Q. Which function converts a string to an integer?
Q. What will `print([1, 2, 3] * 2)` output?
Q. What is the output of `print(2**3)`?
Q. Which statement is used to define a class in Python?
Q. What will `round(4.567, 2)` return?
Q. What is the output of `type(True)`?
Q. Which of these is not a valid Python identifier?
Q. What is the result of `len('Python')`?
Q. Which function returns the absolute value of a number?
Q. What is the purpose of `pass` in Python?
Q. What will `print(5 // 2)` output?
Q. Which function is used to convert a number to a string?
Q. Which of the following is used for string formatting?
Q. Which Python keyword is used for inheritance?
Q. Which method converts a string to lowercase?
Q. What does `re.findall()` return?
Q. Which of the following is an immutable type?
Q. What does the `finally` block do in exception handling?
Q. What is the output of `bool(0)` in Python?
Q. Which of the following is used to create an empty set?
Q. Which of these will create a tuple?
Q. What does `dict.get('key', 'default')` return if the key is not found?
Q. Which Python keyword is used to create a generator?
Q. What will `float('inf')` return?
Q. Which module is used for working with JSON in Python?
Q. Which of these will return the number of keys in a dictionary `d`?
Q. What is the correct way to define a function in Python?
Q. What is the output of `print(None == 0)`?
Q. What will `list(range(5))` return?
Q. What is the result of `bool('False')`?
Q. Which of these is a mutable data type?
Q. What does the `strip()` method do?
Q. Which data structure does `collections.deque` represent?
Q. Which of these is not a keyword in Python?
Q. What will be the output of `print(chr(65))`?
Q. Which built-in function returns the ASCII value of a character?
Q. Which method can be used to return a copy of a list?
Q. Which of the following statements will raise a `TypeError`?
Q. What is the default value of `end` in the `print()` function?
Q. What is the output of `type([]) == list`?
Q. Which function can convert a string to a list of characters?
Q. Which of these methods removes an item from a list by index?
Q. What will be the output of `print('Python'[::-1])`?
Q. How do you handle multiple exceptions in one `except` block?
Q. Which operator is used for exponentiation?
Q. What does the `isinstance()` function do?
Q. Which statement is used to skip an iteration in a loop?
Q. What will be the output of `print(0.1 + 0.2 == 0.3)`?
Q. Which data type is used to store key-value pairs?
Q. Which keyword is used to define an anonymous function in Python?
Q. Which keyword is used for inheritance in Python?
Q. What will be the output of this code?
Q. Which statement is used to handle exceptions in Python?
Q. What is the output of `print(bool([]))`?
Q. What will be the result of `3 > 2 > 1`?
Q. What does the `enumerate()` function do?
Q. Which built-in function returns the number of items in an object?
Q. What is the output of `print(type(lambda x: x))`?
Q. Which keyword is used to import a module in Python?
Q. Which of these is used to define a block of code in Python?
Q. What is the output of `len('Python')`?
Q. Which of these statements is true about Python dictionaries?
Q. What is the output of this code?
Q. Which keyword is used to define a class?
Q. What is the output of this code?
Q. How do you insert an item at a specific position in a list?
Q. What does `split()` do in Python?
Q. Which of the following is not a valid Python data type?
Q. Which method returns a new list with elements in reverse order?
Q. Which of the following is a valid function name in Python?
Q. What is the result of `bool(0)`?
Q. Which module can be used for regular expressions in Python?
Q. Which of the following will raise a `ZeroDivisionError`?
Q. What does the `pass` statement do?
Q. How do you declare an empty set?
Q. What is the output of this code?
Q. What will be the output of this code?
Q. Which function returns the smallest item in an iterable?
Q. What does `zip()` do in Python?
Q. What is the output of `print(5 > 3 and 3 < 1)`?
Q. Which of these statements is used to define a function?
Q. What will be the output of this code?
Q. Which of the following will result in a syntax error?
Q. Which operator is used to test object identity?
Q. What is the output of `bool('False')`?
Q. How are default parameters specified in a function?
Q. What is the output of `list('abc')`?
Q. Which method can be used to remove whitespace from both ends of a string?
Q. What will be the output of `print(2 ** 3 ** 2)`?
Q. What is the output of `type((1,))`?
Q. Which keyword is used to define a generator in Python?
Q. What is the output of this code?
Q. Which of the following statements is used to exit a loop in Python?
Q. What does the `__init__` method do?
Q. What is the output of this code?
Q. What is the output of `bool(' ')`?
Q. What does `enumerate()` return?
Q. What is the output of `round(3.14159, 2)`?
Q. What does `isinstance(obj, class)` do?
Q. What is the default return value of a function that doesn't have a return statement?
Q. Which keyword is used to inherit a class in Python?
Q. What is the correct file extension for Python files?
Q. What is the output of this code?
Q. Which of the following is the correct way to open a file for reading?
Q. Which of the following keywords is used to define an inline condition?
Q. How do you check if 'a' is present in a list `lst`?
Q. What will `len([[],[]])` return?
Q. What is the output of this code?
Q. Which of the following is used to handle exceptions?
Q. Which function returns the largest item in an iterable?
Q. What is the output of the following code?
Q. How do you start a for loop to iterate over the elements of list `items`?
Q. What is the output of this code?
Q. Which of the following will create a tuple with a single element 5?
Q. Which of these is the correct syntax to access the first element of a list named `my_list`?
Q. What is the output of the following code?
Q. What will be the output of this code?
Q. Which method is used to add elements from another list to an existing list?
Q. Which built-in Python function converts a string to an integer?
Q. What is the output of this code?
Q. Which of the following is a mutable data type?
Q. Which of these is NOT a valid Python data type?
Q. Which method adds an element to the end of a list?
Q. What will be the output of this code snippet?
Q. How do you create a set in Python?
Q. What will be the output of this code?
Q. What is the output of this code?
Q. What does the `continue` statement do in a loop?
Q. What is the output of this code?
Q. How do you create a comment that spans multiple lines in Python?
Q. What will be the output of the following code?
Q. Which operator is used for string concatenation in Python?
Q. Which of the following data types is immutable in Python?
Q. What does the `break` statement do inside loops?
Q. How do you define a function in Python?
Q. What will be the output of this code?
Q. Which of the following is used to import a module in Python?
Q. Which built-in function can be used to get the memory address of an object?
Q. What is the result of `5 // 2` in Python?
Q. What is the output of this code snippet?
Q. Which of the following is NOT a valid variable name in Python?
Q. How do you create a dictionary in Python?
Q. What does the `strip()` method do in Python strings?
Q. Which of the following keywords is used for exception handling in Python?
Q. How can you generate a random integer between 1 and 10?
Q. What is the output of this code?
Q. What will be the output of this code?
Q. Which function is used to get input from the user?
Q. How to comment a single line in Python?
Q. What will be the output of this code?
Q. What keyword is used to create a class in Python?
Q. Which of the following is mutable?
Q. What will be the output of this code?
Q. Which method adds an element at the end of a list?
Q. What is the difference between `is` and `==` in Python?
Q. What is the output of the following?
Q. What will this code output?
Q. What is the output of the following code?
Q. Which of the following is used to install external Python packages?
Q. How can you convert a string `'123'` to an integer in Python?
Q. What is the output of this code?
Q. What does the `pass` statement do in Python?
Q. Which of the following is used to define an anonymous function in Python?
Q. What will be the output of the following code?
Q. How can you generate a list of squares of numbers from 0 to 4?
Q. What is the output of the following code?
Q. Which of the following keywords is used to define a function in Python?
Q. How do you comment multiple lines in Python?
Q. What is the output of the following?
Q. Which of the following is NOT a valid Python identifier?
Q. How do you start a Python virtual environment?
Q. What is the output of this code?
Q. What does the following slice return? `a = [1, 2, 3, 4, 5]` `a[1:4]`
Q. Which of these data structures allows duplicate elements?
Q. What does `dir()` function do?
Q. How do you handle exceptions in Python?
Q. Which of these is NOT a valid way to create a dictionary?
Q. What is the output of this code snippet?
Q. Which keyword is used to create a generator function?
Q. Which of the following will correctly read all lines from a file `file.txt`?
Q. How can you convert a list `l = [1, 2, 3]` into a tuple?
Q. What is the output of the following code?
Q. Which statement is used to exit a loop prematurely?
Q. Which of the following is NOT a valid Python literal?
Q. What is the output of this code?
Q. Which method converts a string to lowercase?
Q. Which of the following is used to define anonymous functions in Python?
Q. How do you write an infinite loop in Python?
Q. Which of the following is a Python tuple?
Q. What will be the output of this code?
Q. Which of the following will raise a SyntaxError?
Q. What is the correct way to check if a key exists in a dictionary `d`?
Q. What is the output of this code snippet?
Q. What will the following code print?
Q. Which of the following is the correct way to import the math module?
Q. What will be the output of this code?
Q. What is the output of the following code?
Q. Which of these functions can convert a string to an integer?
Q. How do you create a set with elements 1, 2 and 3?
Q. What is the output of the following code?
Q. Which of the following will create a list of numbers from 0 to 9?
Q. Which function is used to get user input in Python?
Q. What is the result of `5 == 5.0` in Python?
Q. What will be the output of the following code?
Q. Which built-in function is used to get the ASCII value of a character?
Q. What is the output of the following code?
Q. What is the default return value of a function that does not explicitly return anything?
Q. What will be the output of this code?
Q. Which operator is used for floor division?
Q. What is the correct way to open a file for writing in Python?
Q. Which of the following is not a keyword in Python?
Q. Which module in Python is used to generate random numbers?
Q. What is the output of the following code?
Q. Which of the following is a valid variable name in Python?
Q. How do you start a comment in Python?
Q. What does the `range(5)` function return?
Q. Which method is used to add an element at the end of a list?
Q. What will be the output of the following code?
Q. What is the correct syntax to create a class in Python?
Q. Which of the following data types is immutable?
Q. What does the `len()` function return in Python?
Q. What is the output of the following code?
Q. Which keyword is used to handle exceptions in Python?
Q. What will be the output of the following code?
Q. Which of the following is used to define a function in Python?
Q. What is the output of the following code?
Q. Which format specifier is used to print a float?
Q. Which function converts a string to an integer in C?
Q. What is the value of i after this loop?
Q. What is the output of the following code?
Q. Which keyword is used to prevent modification of a variable?
Q. Which of these is used to terminate a C statement?
Q. What is the output of this code?
Q. Which operator is used for conditional branching?
Q. Which header file is required for using printf()?
Q. What is the output of the following code?
Q. What is the output of the following code?
Q. Which function is used to dynamically allocate memory in C?
Q. What is the output of the following code?
Q. What is the result of sizeof(char)?
Q. Which of the following is correct about array indexing?
Q. Which of the following is a correct way to define a struct?
Q. What is a dangling pointer?
Q. Which keyword is used to define macros?
Q. What happens if you dereference a NULL pointer?
Q. What does fclose() return on success?
Q. Which function moves the file pointer to a specified location?
Q. Which of the following will compile successfully?
Q. What does 'fgetc()' return at EOF?
Q. Which of the following can be used as a structure pointer?
Q. Which of the following is true about macros?
Q. What is the output of the following?
Q. What does the 'ftell()' function return?
Q. Which of the following is not a valid file operation mode in fopen()?
Q. What will the following code print?
Q. What does 'r' mode in fopen mean?
Q. What does calloc() do differently than malloc()?
Q. Which is used to declare a constant pointer to integer?
Q. What does the sizeof operator return?
Q. Which header file defines size_t?
Q. Which keyword is used to write inline assembly in C (GCC)?
Q. Which function creates a new thread?
Q. Which header provides pthread functions?
Q. What is the size of an int[10] array?
Q. How many dimensions can an array in C have?
Q. Which is a safer version of memcpy()?
Q. Which function copies memory block?
Q. Which operator is used to find address of a variable?
Q. Which of the following will most likely cause a memory leak?
Q. Which member of a union can be accessed at a time?
Q. What does a union allow you to do?
Q. Which of the following is a correct declaration of a function pointer?
Q. What is a function pointer in C?
Q. Which keyword is used to exit from a loop in C?
Q. Which of the following is a valid identifier in C?
Q. What is the purpose of the 'const' keyword in C?
Q. Which of the following functions can be used to allocate memory dynamically?
Q. What is the result of this code?
Q. Which header file is needed for variable argument functions like printf()?
Q. What does 'inline' keyword indicate in C99?
Q. Which macro returns the current file name in C?
Q. What does argc represent in main()?
Q. Which operator is used to access value at address stored in pointer?
Q. What is the output of the following?
Q. Which of the following is not a valid storage class?
Q. What is the default storage class in C?
Q. Which storage class gives a variable internal linkage?
Q. What does the '~' operator do?
Q. Which bitwise operator is used to turn off a particular bit?
Q. What is the return value of malloc() if memory allocation fails?
Q. Which function is used to write a character to a file?
Q. Which function is used to read a character from a file?
Q. Which standard function writes to a file?
Q. Which function moves the file pointer to a specific location?
Q. Which preprocessor directive stops multiple inclusions?
Q. Which directive is used to include a header file?
Q. What is the default value of the first member in an enum?
Q. Which keyword allows you to create an alias for a type?
Q. How is a structure defined in C?
Q. Which function releases memory allocated by malloc()?
Q. What does the function fclose() do?
Q. Which of the following modes is used to append to a file?
Q. Which statement about pointers is correct?
Q. Which of the following is true about arrays in C?
Q. What will be the output of this code?
Q. Which of the following functions can copy one string into another?
Q. What is the output of this loop?
Q. Which of the following will declare a pointer to integer?
Q. Which of these is not a valid string function?
Q. What is the output of this code?
Q. Which symbol is used to access the value pointed to by a pointer?
Q. What is the output of the code?
Q. Which header file is required for command-line arguments?
Q. What will be the output of the code below?
Q. Which of the following initializes all elements of an array to zero?
Q. How many elements can be stored in int arr[10]?
Q. What is the output of this code?
Q. What is the output of the following code?
Q. Which header file is required for structure and union?
Q. Which function allows you to read structured data from a file?
Q. Which of these uses the most memory?
Q. What is the output of this code?
Q. Can you have a pointer to a structure?
Q. Which one is true about typedef?
Q. What will sizeof return for the following structure?
Q. Which keyword is used to define an enumeration?
Q. How can you define a recursive function in C?
Q. Which of these is not allowed in structure definition?
Q. How many times will 'Hello' be printed?
Q. What is the output of this recursive function call: fun(3)?
Q. Which of these data structures can be self-referential?
Q. What is the result of using uninitialized local variables?
Q. What will the following code print?
Q. Which access operator is used with structure pointers?
Q. Which is true about union in C?
Q. What is the output of the following code?
Q. Which keyword is used to define an alias name for a data type?
Q. What is the size of an empty structure in C?
Q. Which is the correct syntax to declare a pointer to an int?
Q. Which header file is needed for memory allocation functions?
Q. Which of the following correctly defines a macro with parameters?
Q. What does the 'realloc()' function do?
Q. Which of these is true about void pointers in C?
Q. What is the output of: printf("%p", NULL);
Q. Which macro returns the end of file indicator?
Q. What does 'fgetc()' do in C?
Q. What is the keyword used to prevent redefinition of a header file?
Q. Which function is used to move the file pointer to a specific location?
Q. Which function is used to allocate memory during runtime?
Q. What will happen if you dereference a NULL pointer?
Q. Which of the following is not a valid pointer type?
Q. What is the output of: printf("%d", sizeof(char));
Q. Which keyword is used to define a macro in C?
Q. What will be the output of the following code?
Q. Which operator is used to access the value at the address stored in a pointer?
Q. What is the output of: printf("%c", 65);
Q. What is a correct syntax for declaring a pointer to a function returning int?
Q. What is the output of: printf("%d", 10/3);
Q. Which of these statements is true about arrays in C?
Q. What is the output of the following code?
Q. Which of the following operators has the highest precedence?
Q. Which function is used to read a single character from user input?
Q. Which of these is used to terminate a string in C?
Q. What is the use of the keyword 'extern'?
Q. What is the keyword used to prevent a variable from being modified?
Q. Which format specifier is used to read a character?
Q. What does the function sizeof() return?
Q. What will be the output of the following code?
Q. What is the purpose of 'return 0;' in main()?
Q. What is the default value of a local variable in C?
Q. Which of the following will correctly declare a function in C?
Q. Which function is used to open a file in C?
Q. Which of the following is a correct way to declare a 2D array in C?
Q. What will be the output of the following code?
Q. Which data type is usually used to represent boolean values in C?
Q. Which operator is used to find remainder in C?
Q. Which operator is used to allocate memory dynamically?
Q. Which of these is not a valid data type in C?
Q. What will be the result of this expression: 5 == 5?
Q. What is the ASCII value of character 'A'?
Q. What will be the output of this program?
Q. What is the default return type of main() in C?
Q. How are strings stored in C?
Q. Which header file is required for using malloc()?
Q. Which of the following is not a valid escape sequence?
Q. What is the output of the following code?
Q. Which function is used to find the length of a string?
Q. Which of the following is not a storage class in C?
Q. Which of the following is used to comment a single line in C?
Q. What will be the output of this code?
Q. Which of the following format specifier is used to print a float in C?
Q. What is the keyword used to define enumeration in C?
Q. Which type is best for storing a character?
Q. Which of the following is a valid identifier?
Q. What is the output of this function call?
Q. What is the result of logical NOT of 0?
Q. Which header file contains the definition of NULL?
Q. Which of the following is true about global variables in C?
Q. What is the correct way to define a structure?
Q. Which keyword is used to stop a loop prematurely?
Q. Which of the following is not a loop in C?
Q. What is the output of this code?
Q. What is the size of an int in C (on most systems)?
Q. What is the output of this code?
Q. What is the value of 'a' after this code?
Q. Which function is used to deallocate memory in C?
Q. Which operator is used to access members of a structure through a pointer?
Q. Which keyword is used to define a macro?
Q. What will be the output of this program?
Q. Which of the following is the correct way to declare a pointer in C?
Q. Which function is used to write a string to the console?
Q. Which escape sequence is used to insert a new line?
Q. What will be the result of this expression: 10 % 3?
Q. What is the value of x after this code runs?
Q. Which one is used to declare a constant in C?
Q. Which function is used to compare two strings?
Q. Which format specifier is used to print a float value?
Q. Which keyword is used to prevent modification of a variable in C?
Q. What does the following code do?
Q. What will this code output?
Q. What does the following code do?
Q. Which header file is required for malloc()?
Q. What is the default return type of main() if not specified?
Q. Which of the following functions can be used to open a file in C?
Q. Which data type is most suitable for storing a 10-digit mobile number in C?
Q. What is the output of this code?
Q. What is a correct way to comment in C?
Q. Which format specifier is used for unsigned int in printf?
Q. What is the purpose of the continue statement in loops?
Q. What will be the output of sizeof('A')?
Q. What is the output of this code?
Q. Which of the following correctly declares a function in C?
Q. What is the return type of malloc()?
Q. Which of the following cannot be checked in a switch-case statement?
Q. Which function is used to read a single character from input?
Q. Which operator is used to access structure members via a pointer?
Q. Which function is used to allocate memory dynamically in C?
Q. What is the output of this code?
Q. Which symbol is used to denote a pointer in C?
Q. What is the size of an int on a 32-bit system?
Q. Which of the following is a keyword in C?
Q. What is the output of this code?
Q. Which of the following is a valid variable name in C?
Q. What will be the output of the following code?
Q. Which header file is needed for using printf() and scanf() functions?
Q. What will this code output?
Q. What is the null character used to terminate strings in C?
Q. Which of the following header files includes memory allocation functions?
Q. Which of these is not a loop structure in C?
Q. What is the result of the expression `5 == 5` in C?
Q. Which of the following is not a valid storage class in C?
Q. Which function is used to close a file in C?
Q. What is the output of this code?
Q. Which keyword is used to define a constant in C?
Q. What does the following line declare? `int *ptr[5];`
Q. What is the value of x after this code?
Q. Which standard function is used to find the length of a string?
Q. Which is the correct way to declare an array of 10 integers?
Q. Which keyword is used to come out of a loop instantly?
Q. What is the output of the following code?
Q. Which operator has the highest precedence in C?
Q. Which function is used to copy a string in C?
Q. What will be the output of the following code?
Q. What is the correct format specifier for printing a float value?
Q. Which of the following is used to define a macro in C?
Q. What is the keyword used to define a structure in C?
Q. Which function is used to read a string from the user?
Q. Which operator is used to access value at the address stored in a pointer?
Q. What is the default return type of a function in C if not specified?
Q. Which header file is needed to use printf() and scanf()?
Q. What will be the output of this code?
Q. What does the 'break' statement do?
Q. Which keyword is used to prevent a variable from being modified?
Q. What is the output of the following code?
Q. Which of the following is a valid comment in C?
Q. Which loop is guaranteed to execute at least once?
Q. What is the purpose of the 'return 0;' statement in the main function?
Q. Which symbol is used to declare a preprocessor directive?
Q. What will be the output of this code?
Q. What does the 'continue' statement do in a loop?
Q. Which of the following functions is used to dynamically allocate memory in C?
Q. What is the size of 'int' in a 32-bit C compiler?
Q. Which data type is most suitable for storing a number 65000 in C?
Q. What will be the output of the following code?
Q. Which of the following is the correct syntax to declare a pointer in C?
Q. Which clause is used to group rows that have the same values?
Q. Which function is used to round numbers in MySQL?
Q. Which keyword is used to avoid duplicate entries in SELECT?
Q. Which statement will return the second highest salary?
Q. Which function returns the length of a string in MySQL?
Q. Which of these is not a valid MySQL JOIN type?
Q. What is the purpose of `JOIN` in MySQL?
Q. How do you delete all rows from a table named `orders`?
Q. Which SQL statement is used to change data in a table?
Q. What is the purpose of the `DEFAULT` keyword in table creation?
Q. What is the default port for MySQL?
Q. Which data type is suitable for storing large text in MySQL?
Q. Which clause is used with GROUP BY to filter grouped results?
Q. What does `AUTO_INCREMENT` do in MySQL?
Q. Which SQL keyword is used to remove duplicate rows from the result set?
Q. Which MySQL function is used to get the current date and time?
Q. What does `UNION` do in SQL?
Q. Which command gives you the structure of a table?
Q. Which command is used to view all databases in MySQL?
Q. Which keyword is used to remove all records from a table without deleting the structure?
Q. What does this query return?
Q. How can you select the top 5 rows in a table?
Q. Which constraint ensures that all values in a column are different?
Q. Which type of JOIN returns only matching rows from both tables?
Q. Which keyword is used to define a foreign key in MySQL?
Q. How do you rename a column in MySQL?
Q. Which clause is used to limit the number of rows returned?
Q. Which of the following is a valid way to create an index?
Q. Which command is used to remove a table from a database?
Q. What is the use of the `LIKE` operator?
Q. Which statement is used to add a new column to an existing table?
Q. What does this query return?
Q. Which operator is used to check for NULL values in MySQL?
Q. Which MySQL clause is used to sort the result set?
Q. Which keyword is used to rename a table in MySQL?
Q. Which MySQL statement is used to grant privileges to a user?
Q. What does this query return?
Q. Which SQL keyword is used to prevent duplicate entries in a column?
Q. What does `TRUNCATE TABLE` do?
Q. Which of the following is not a valid MySQL data type?
Q. Which function is used to count non-null records in a column?
Q. Which keyword is used to update data in MySQL?
Q. What will this query return?
Q. Which SQL clause is used to group rows that have the same values?
Q. What is the purpose of the `AUTO_INCREMENT` attribute?
Q. How do you select all the columns from a table?
Q. Which function is used to find the maximum value in a column?
Q. What does this query return?
Q. Which clause is used to remove duplicate records from the result set?
Q. What is the default storage engine for MySQL as of version 5.5?
Q. Which MySQL command is used to create a new database?
Q. Which of the following is a valid constraint in MySQL?
Q. What will be returned by this query?
Q. Which function is used to get the length of a string?
Q. What is the purpose of foreign key in MySQL?
Q. What does the following command do?
Q. Which statement is used to insert a new row in a table?
Q. Which clause is used with GROUP BY to filter groups?
Q. Which index is automatically created on the primary key?
Q. Which command is used to modify an existing table?
Q. Which data type is suitable for storing monetary values?
Q. What is the result of this SQL?
Q. What does the following SQL do?
Q. Which function is used to get the current date in MySQL?
Q. Which of the following is used to prevent SQL injection?
Q. Which keyword is used to sort the result set in SQL?
Q. What will the following query return?
Q. Which SQL clause is used to filter records?
Q. What is the default port number for MySQL?
Q. Which command is used to remove a MySQL database?
Q. What will be the output of the code below?
Q. What does the following code output?
Q. What will be the result of the following code snippet?
Q. What will be the output of the following JavaScript code?
Q. In order to connect to ISP's server you need .......
Q. The function contain in the ios class to set width
Q. Which of the following is the correct statement?
Q. Google Docs is a type of cloud computing.
Q. Which event handler is triggered when the user’s mouse moves away from a link?
Q. Which event handler is triggered when the user’s mouse moves onto a link?
Q. How do we create and preload an image object in JavaScript?
Q. How to assign the image source in JavaScript?
Q. How do we get the DOM object in JavaScript?
Q. Which is the function used to call a function in every time duration?
Q. Which is the property used to position the object in the left of the screen?
Q. Which function is used to clear the timer value?
Q. Which is the function that calls another function after a time interval?
Q. Which of the following can be implemented using animation?
Q. What is the purpose of the userAgent property?
Q. Which of the following is not a navigator method?
Q. What is the purpose of the preference method in a navigator?
Q. What is the purpose of the platform[] property in a navigator?
Q. Which of the following is not a navigator property?
Q. What is the purpose of the area element?
Q. Which is the element that follows the use of “img”?
Q. Which are the special tags used for image mapping?
Q. Which is the attribute used to enable the Client-side image map?
Q. Which side of image map can be created using JavaScript?
Q. What is the function used to stop capturing the ad hoc timing ?
Q. During the traversing through the stack, where does it go after it goes to the window?
Q. During the traversing through the stack, where does it go after it goes to the namespace?
Q. What is the next step after calling the startTimeLogging()?
Q. Why do we need to create locally scoped variables to hold value?
Q. What will happen if you reference document.location from within an object?
Q. The attribute location belongs to which element?
Q. What does the interpreter do when you reference variables in other scopes?
Q. What is the function of the closure compiler?
Q. In what way does the closure compiler help in checking the code?
Q. Why is a closure template used?
Q. What is the purpose of the advanced mode in the closure compiler?
Q. In which way can the closure compiler can be used?
Q. In what way is the closure compiler efficient?
Q. What are the benefits of closure compiler?
Q. What is a closure compiler UI?
Q. What is the purpose of the simple mode?
Q. In how many modes can the closure compiler be run?
Q. Which is the function that allows a worker to terminate itself?
Q. Which property is used to manage multiple event handlers?
Q. How can you send data using a Worker object?
Q. What will happen if you specify an absolute URL in the Worker constructor?
Q. Which will be invoked to create a new worker?
Q. Which of the following is a global object for a new worker?
Q. The object that looks to the thread that creates it is
Q. Why shouldn’t JavaScript functions not be too long?
Q. Which of the following functions are synchronous?
Q. Which of the following is one of the fundamental features of JavaScript?
Q. A Blob URL can be created using which of the following function?
Q. Which method facilitates in uploading a Blob to a server?
Q. Which of the following is a subtype of Blob?
Q. Which object can be used to create your own blobs?
Q. Which database can be used to retrieve blobs?
Q. Which algorithm supports blobs?
Q. The blobs are broken into smaller pieces using which of the following functions?
Q. The blobs are generally stored in
Q. The size of blobs are generally calculated in
Q. In which format does JavaScript support external JavaScript?
Q. Which of the following is a way to retain an object in memory?
Q. When does a cycle occur during memory leak?
Q. What is the purpose of destroying the functions and objects?
Q. Which of the following functions are referenced internally?
Q. When does a memory leak happen?
Q. What is the central concept of JavaScript memory management?
Q. Where are memory leaks found?
Q. Which program code doesn’t need preprocessing before being run?
Q. Which of the following is the method used to add an element to the desired location?
Q. What is the purpose of the function parameter filetype?
Q. What is the purpose of the RegExp method test()?
Q. Which of the following global variables is used to get parameters?
Q. What kind of path can the PHP file be?
Q. Which of the following attribute takes the source of the PHP file?
Q. Which of the following is possible to be referenced in external JavaScript?
Q. What are the two parts of JavaScript libraries?
Q. What is the reason for avoiding the attributes property in the HTML DOM?
Q. When does one use the method startOverlays()?
Q. When does one use the event ready?
Q. What is the purpose of the event disconnectionEvent?
Q. What is the purpose of the event onAirEvent?
Q. What is the necessity to have API?
Q. Which of the following ensures additional interactivity mechanism?
Q. Which API makes the user’s current location available to browser-based application?
Q. What is the purpose of XMLHttpRequest?
Q. What is the significance of scripting?
Q. In which part does the form validation occur?
Q. Which object is the top of the hierarchy?
Q. What is the purpose of the Legacy DOM ?
Q. Which of the following is a type of HTML DOM?
Q. How are the objects organized in the HTML DOM?
Q. What is the work of the form control elements in the HTML DOM?
Q. What is the purpose of the Attr object in the HTML DOM?
Q. What does the NamedNodeMap object represent in the HTML DOM?
Q. How is everything treated in HTML DOM?
Q. What is the purpose of the method nodeMap.setNamedItem()?
Q. What is it called when we make a mistake in the script?
Q. What is the purpose of the mimeTypes property of a plug-in entry?
Q. Which of the following are the properties of a plug-in entry?
Q. Which of the following is the child object of the JavaScript navigator?
Q. How do you focus a particular part of the HTML page in JavaScript?
Q. How to find the index of a particular string?
Q. Which is the function that is called to validate a data?
Q. What is the purpose of data format validation?
Q. What is the purpose of the basic validation?
Q. What would happen if the data in the client had been wrong?
Q. What is the purpose of a JavaScript debugger?
Q. What kind of error notifications are shown in the console window?
Q. What is the other way of calling the Error Console in Firefox?
Q. What is the procedure to view the console in the Firefox?
Q. Which of the following is the window that the Firefox sends the error messages to?
Q. Where is the error icon option available?
Q. Where is the error icon shown in the Internet Explorer?
Q. Which of the following is the definition for debugging?
Q. Which of the following is not a JavaScript framework?
Q. How can you find a client’s browser name?
Q. How do you find the number with the highest value of x and y?
Q. What is the syntax of close method for document object?
Q. Which is a wrapped Java array, accessed from within JavaScript code?
Q. What is the purpose of the function eval?
Q. Which is the function used to loop in an array to view all the values?
Q. If we have an object r and want to know if it is a Range object, we can write:
Q. Which of the following are static methods in JavaScript?
Q. How many static methods does a Date object have?
Q. What is the purpose of the Math method toSource()?
Q. How many properties are associated with the Response event?
Q. Which of the following is an interface?
Q. Which of the following is a read-only property?
Q. What does the method Performance.now() return?
Q. What does it indicate when the type attribute of the navigation object is set to 2?
Q. Which of the following property is associated with the Processing event?
Q. Which of the following property is associated with the Response event?
Q. What is the purpose of the timing property in the window.performance object?
Q. Which of the following property gives access to the JavaScript memory usage data?
Q. Which of the following API can be used to get the timing without affecting the page loading process?
Q. Which of the following property is associated with the Request event?
Q. What is the purpose of the property PerformanceTiming.fetchStart?
Q. Which of the following does JSON.stringify not serialize?
Q. What is the purpose of the property PerformanceTiming.navigationStart?
Q. What is the purpose of the navigation property in the window.performance object?
Q. How many properties are there in window.performance object?
Q. How many properties are there in the interface PerformanceTiming?
Q. Which of the following does not serialize the undefined values or objects within an object?
Q. How many properties does a prototype object have?
Q. Where does the DNS Lookup direct to ?
Q. Which of the following constants hold the value 2?
Q. What does the constant TYPE_BACK_FORWRD indicate?
Q. What is the purpose of the constant TYPE_RELOAD?
Q. Which of the following constants has the value 255?
Q. How many constant values can the property type be represented?
Q. How can one access the redirectCount property?
Q. Where does the DNS reply go to in a single HTTP redirect?
Q. Why are HTTP redirects significant?
Q. How many read-only attributes are present in the navigator object?
Q. Which keyword must be used to get a more granular insight of the memory usage?
Q. Which of the following gives the high level breakdown of memory usage?
Q. What can be done to monitor the memory usage?
Q. Which of the following property indicate the total size of heap?
Q. What does the usedJsHeapSize property indicate?
Q. What is the purpose of garbage collection?
Q. What is the command to access the Heap size limit?
Q. What is the function of the memory object?
Q. What is a heap in JavaScript?
Q. How many properties are available in a memory object?
Q. What would happen if there were no script tags?
Q. What will happen after executing the script?
Q. Which is the next step after retrieving the content in chunks?
Q. Which of the below does not belong to the Render Engine work flow?
Q. Which of the following gets converted to DOM elements by the rendering engine?
Q. Which of the following layer retrieves the content from the network?
Q. Which of the following runs the JavaScript code?
Q. What does the rendering engine do when it encounters JavaScript?
Q. Which of the following handles painting the content on to the screen?
Q. When does the browser stop rendering the HTML?
Q. What is the method used to create an element in the HTML DOM?
Q. What is the type of datatype the async attribute optionally accepts?
Q. What is the purpose of the startTimeLogging() method?
Q. Why do we need to use an onload event in the script tag after using the async attribute?
Q. What is the purpose of using the async attribute in the script tag?
Q. What should be the type of the script_url?
Q. How to get a particular value using the tagged name?
Q. What is the solution to the absence of a script tag without an src attribute?
Q. What will happen if the browser encounters a script tag without an src attribute?
Q. What is the purpose of script loading?
Q. What is the purpose of the method localeCompare()?
Q. Which of the following are client-side JavaScript object?
Q. Which best explains getSelection()?
Q. Which of the following navigator object properties is the same in both Netscape and IE?
Q. What is the purpose of creating a data frame?
Q. What is the method to create a data frame ?
Q. What is the default value of the asyc attribute?
Q. What is the purpose of the method createDocumentFragment()?
Q. How is the render time calculated?
Q. What is the purpose of the domLoading attribute?
Q. Which is the method used to add an event listener?
Q. Which of the following is an attribute to the script object?
Q. What is the result when the showPerformanceMetrics() is called before loading the remote script?
Q. What are the parameters of the attachEvent function?
Q. Where is the external JavaScript placed in the case of lazy loading?
Q. What is the purpose of lazy loading?
Q. How do we stop blocking of loading and executing the perfLogger, a logging type data?
Q. What is the parameter of the method getElementsbyTagName() if we need to get an image?
Q. What does the rel attribute of a variable have when the type of file is CSS?
Q. What should be the value of the type attribute of a variable if the type of file is CSS?
Q. What does the appendChild() method perform?
Q. What is the purpose of holding whatever tag you create in the attribute type?
Q. What is the inital step to set up a CSS Lazy Loading?
Q. What is the meaning of JavaScript Hoisting?
Q. What is the method used to stop an execution of a method?
Q. Which of the following method will wait for certain milliseconds to execute a specified method?
Q. Which of the following method loads a new document?
Q. What is the purpose of the window.location object in JavaScript?
Q. How many reserved words are there in JavaScript?
Q. What will happen if the fvonly parameter is set to 1?
Q. What is the purpose of the parameter location?
Q. How many parameters does the API accept?
Q. What is the necessity to create a separate file after having an API key?
Q. What does it indicate when the radix value is 16?
Q. What is the function of the parseInt() method?
Q. What will be the radix value if the string begins with 0x?
Q. What will happen if the radix parameter of the parseInt() function is omitted?
Q. To which of the following object does the print() method belong to?
Q. Which is the function in JavaScript that will print the current page in JavaScript?
Q. What is the parameter of the method Date.parse()?
Q. What is the purpose of the url json?
Q. What is the purpose of the method ActiveXObject()?
Q. What is the function of the XML parser?
Q. Which of the following is the fastest JavaScript parser?
Q. What is the purpose of the UgilifyJS?
Q. Which of the following is a JavaScript Compressor?
Q. What kind of an exception will be thrown if the string to parse is not valid JSON?
Q. What are the parameters of the method JSON.parse()?
Q. What is the return type of the method parseInt()?
Q. What is the purpose of the method JSON.parse()?
Q. What will be the radix value of the parseInt() method when the string begins with 0?
Q. What is the purpose of the radix parameter in the parseInt() method?
Q. What type of scooping is present in JavaScript?
Q. Which of the following attribute of form tag is not set by using document object in JavaScript?
Q. Which function is used to start the time logging?
Q. Where does the external process save the result of the test?
Q. Which of the following object is used to post the data to an external process, say savePerfData?
Q. According to the workflow of a runtime logging, what happens after calculating the run time?
Q. How to calculate the run time of a code?
Q. Which of the following are ways to benchmark code?
Q. What is an observer effect?
Q. How many default number methods are available in JavaScript?
Q. What is necessary when we need to create a new field in craft?
Q. How do you specifically execute a command in JavaScript?
Q. How can you dispatch a synthetic event object?
Q. How can you create a node for comment in JavaScript?
Q. What is the function of the method importNode()?
Q. What is the purpose of the adoptNode() method?
Q. What is the purpose of the property width belonging to the ImageData element?
Q. What is the return data type of the property accept that belongs to the Input element?
Q. The lexical scooping in JavaScript is based on which of the following?
Q. Which function is used to stop the time logging?
Q. Which of the following are JavaScript logging library?
Q. Which method is called right before a field is saved?
Q. How many events does the BaseFieldType provide?
Q. When does the defineContentAttribute() method return a false?
Q. What is the purpose of the parameter $value?
Q. What does the method defineSettings() return?
Q. What is the purpose of the parameter $name ?
Q. Which is the method used to process on the input’s post data before it is saved to the database?
Q. How many arguments does the getInputHtml() accept?
Q. What does the getInputHtml() return?
Q. When does JSNLog have server-side extensions?
Q. Which of the following are appenders?
Q. Which of the following JavaScript logging tool is standalone?
Q. Which of the following JavaScript logging tool is also a debugging tool?
Q. Which of the following JavaScript logging framework lets one to toggle the plane?
Q. What is the significance of the JavaScript logging library log4javascript?
Q. Which of the following browsers support the usage of the JavaScript logging library log4javascript?
Q. What is the significance of the JavaScript logging library loglevel?
Q. What does an History object contain?
Q. Which of the following is not a WebSocket event?
Q. How will you transmit data using the connection?
Q. How can we check the subprotocol being used by the client?
Q. Which of the following are not a socket property?
Q. Which method is used to close the WebSocket?
Q. How many WebSocket events are available?
Q. What does the value 2 of the WebSocket attribute Socket.readyState indicate?
Q. Which of the following is a stateless protocol?
Q. R is an extension of which of the following language?
Q. What is the purpose of the event window.onpopstate?
Q. How many parameters does the replaceState() method take?
Q. What does the pushState() method do?
Q. How do you add a particular state to the browsing history?
Q. How will you update the URL displayed in the location bar?
Q. What is the purpose of the method forward()?
Q. How many methods are there in the History object?
Q. The history object is a part of which object?
Q. What kind of data can be run in R?
Q. What does the R language do?
Q. Why do we use Adobe Illustrator along with R?
Q. What is the purpose of a glue language?
Q. Which platform is R imported to after charting as a PDF?
Q. What are the processes that take place within R?
Q. What type of language is generally used to collect the data?
Q. What are the purposes R can be used for?
Q. Which of the following is a successor to the S language?
Q. Which of the following is/are statistical languages?
Q. What is the usage of the keyword "??" in R?
Q. For a more extensive search, which keyword needs to be used?
Q. Which is the keyword used to open the Help window?
Q. Which of the following is used to run ad hoc R commands?
Q. The code of the R language has an extension?
Q. Which of the following comes with tools to build your own R packages?
Q. Which of the following comes with compiled third-party packages?
Q. Which of the following is the base install for R?
Q. What is the advantage for Linux users using R?
Q. Which of the following is/are the features of R?
Q. What is the purpose of the method plot()?
Q. Which function is used to create data frames?
Q. Which of the following list contains multiple data types?
Q. Which is the function used to add the vectors?
Q. What is the limit to matrices in R?
Q. Which of the following is a loosely-typed language?
Q. Which of the following is the assignment operator in R programming?
Q. Which symbol is used to start a comment in R?
Q. What is the usage of the keyword "?" in R?
Q. Which type of comment is not supported in R?
Q. How many parameters does the WebPageTest API accept?
Q. What is the purpose of the method par()?
Q. Which is the method used to draw a bar plot?
Q. Which of the following are methods used to save charts?
Q. Which is the method used to save chart as a ps file?
Q. How to save chart as a Window metafile?
Q. What is the purpose of the method symbols in R?
Q. Which of the following is the initial function used to create a bubble chart natively in R?
Q. What is the need for bubble charts?
Q. How many parameters does the method plot() accept?
Q. Which environment variable must the user enable in order to enable data tainting?
Q. What is the tainted property of the window object?
Q. Which tag can handle mouse events in Netscape?
Q. How will you convert the returned API into an XML object?
Q. What will the file_get_contents() return?
Q. What is the purpose of the file_get_contents()?
Q. What is the purpose of getting the paramerer fvonly?
Q. What will happen if you set the private flag as 1?
Q. What is the purpose of getting the parameter block?
Q. What is the maximum size of an IP packet for IPv4 or IPv6?
Q. Which status code indicates that the server could not find the resource requested?
Q. What does the application layer handle?
Q. What does the status code 500 indicate?
Q. What does the status code 200 indicate?
Q. What is the purpose of the transport layer?
Q. How does the handshake help the server?
Q. What does the handshake pass between the browser and the remote server?
Q. What does the browser do to set up a TCP/IP connection?
Q. How do we define the term Thread?
Q. What is the purpose of the advanced mode in the Closure compiler?
Q. In how many modes can the Closure compiler be run?
Q. In order to skip or seek to a desired location in a sound or video, which property becomes helpful?
Q. What does the span of time waiting for the page to be useful depend on?
Q. When is an application said to show a runtime performance?
Q. When is an application said to show a web performance?
Q. How can we define the term Performance?
Q. How does PhantonJS use YSlow?
Q. The let keyword can be used
Q. Which of the following property(s) has a default value as false?
Q. What is the default value of the property overrideConsole
Q. Which of the following is not a feature of the User Interface?
Q. What are the goals for using Firebug?
Q. Why do Web Developers use Firebug?
Q. Firebug can be used to inspect
Q. Firebug is an extension of which browser?
Q. What is the purpose of Auth tab in the testing platform?
Q. When does WebPageTest become necessary?
Q. Which network allows you to distribute static assets like images, etc?
Q. How does the YSlow for Mobile work as?
Q. Which of the following is mandatory to run before running YSlow?
Q. How many rules are there in the YSlow version 2.0?
Q. Which of the following can be used for a deeper analysis of the web page’s performance?
Q. Initially, YSlow was an extension of which browser?
Q. What are the two output formats YSlow uses?
Q. From which did Minification concept originate?
Q. What is the purpose of minifying the JavaScript?
Q. Which of the following methods adds an arc to the current subpath?
Q. Which of the following methods adds and connects the point to the cubic bezier curve?
Q. What is the vulnerability of XHR communications?
Q. What is the task of the Advanced Panel?
Q. What is the purpose of the Video tab?
Q. What is the purpose of the Block tab?
Q. Which is the command that is used to spoof the client user agent?
Q. What is the purpose of the Script tab?
Q. The Closure Compiler was introduced by
Q. What is scorched-earth optimizations?
Q. What is the function of a Closure Compiler?
Q. What type of file is YUI Compressor?
Q. YUI Compressor is analogous to
Q. Which of the following is the order of Minify process?
Q. Which folder contains the Minify control panel?
Q. What is in-built in the Minify?
Q. What does the Minify set the encoding HTTP header?
Q. What is the purpose of the product Minify?
Q. Which is the game that requires extremely minified source in the Perl culture?
Q. Which of the following is the approach used to compress HTML in web servers and modern web browsers?
Q. Which of the following are JavaScript optimizers?
Q. Which one of the following is more efficient in terms of the file size reduction?
Q. What is the outcome of using R along with minification?
Q. What does the JS File return ?
Q. What is the return type of the script tag?
Q. What does the Minify return back to the Script tag?
Q. Which of the following is the parameter used to invoke the Audio() constructor?
Q. Which of the following is not the property of the video tag?
Q. Which of the following attributes are common to both audio and video?
Q. Which of the following elements are used to include audio?
Q. Which is a possible way of finding all the img elements in the document?
Q. When is JavaScript called obtrusive?
Q. What is the purpose of image replacement?
Q. Which HTML element is used to include images?
Q. How do you restore a saved coordinate system?
Q. Which of the following is a property used to check how crisp or fuzzy shadows are?
Q. Which of the following are not the properties of a canvas object?
Q. Which is the method invoked to connect the last vertex back to the first?
Q. Which is the method invoked to begin a path?
Q. How does SVG describe complex shapes?
Q. What is the returning value of the getContext() method?
Q. Which method is used to obtain the “drawing context” object ?
Q. From which version of IE is canvas supported?
Q. What is the purpose of the canvas element?
Q. Which is the alternate name for JavaScriptCore that is used by Safari?
Q. Carakan is used by which of the following browsers?
Q. SpiderMonkey was developed by
Q. Which of the following render HTML?
Q. Which of the following first developed Gecko?
Q. Which of the following browsers use Webkit?
Q. The User Interface is taken care by which layer?
Q. Which layer is used to handle the HTTP requests?
Q. What is the purpose of the JavaScript Engine?
Q. What is the purpose of a Rendering Engine?
Q. Arrange the TCP/IP model layers in the order from furthest to closest to the end user.
Q. What are the various possessions in the three-way handshake by the TCP?
Q. Which layer handles the top-level communication?
Q. The layer in which the TCP (or UDP) communication takes place is
Q. Which layer is used to handle the network addressing and routing?
Q. Which layer is used to control the communication between the hardware in the network?
Q. How will the HTTP GET request be sent from the browser?
Q. Why is the total size of the page important?
Q. What are the features of an interpreter?
Q. What is the result of the following code snippet? window.location === document.location
Q. To which object does the location property belong?
Q. What will happen if we call setTimeout() with a time of 0 ms?
Q. Which method receives the return value of setTimeout() to cancel future invocations?
Q. The setTimeout() belongs to which object?
Q. Which method receives the return value of setInterval() to cancel future invocations?
Q. Which property is used to obtain browser vendor and version information?
Q. Which is the handler method used to invoke when uncaught JavaScript exceptions occur?
Q. Which function among the following lets to register a function to be invoked once?
Q. The history property belongs to which object?
Q. What is the purpose of the assign() method?
Q. Why is the replace() method better than the assign() method?
Q. The decodeURIComponent() is defined by
Q. What is the function used to extract arguments from the search property of a URL?
Q. What is the return type of the hash property?
Q. Which among the following is not a property of the Location object?
Q. What does the location property represent?
Q. The URL property belongs to which of the following object?
Q. Where is the information of the userAgent property located?
Q. Which of the below properties can be used for browser sniffing?
Q. Which is the preferred testing nowadays for scripting?
Q. What is the vendor-neutral synonym for navigator?
Q. The navigator property belongs to which of the following object?
Q. What is the special feature of the modern web applications?
Q. What is the datatype of the go() method’s parameter?
Q. The length property belongs to which of the following objects?
Q. If the window has child windows, how will the browsing histories be affected?
Q. What is the code snippet to go back to a history twice?
Q. The inner frame within a top-level window can be referred as
Q. When will the fourth argument to open() useful?
Q. Which is the property of a Window object that holids the name of the frame?
Q. Which object serves as the global object at the top of the scope chain?
Q. What will happen if the first argument of open() is omitted?
Q. A new web browser window can be opened using which method of the Window object ?
Q. What is the distinction made by JavaScript between windows, tabs, iframes, and frames ?
Q. Nested documents in the HTML can be done using
Q. Each tab in the single web browser window is called as
Q. The return type of getElementsByClassName() is
Q. Which of the following property refers to the root element of the document?
Q. Which is one of way to query a document for an element or elements?
Q. Which of the following is/are of Text nodes?
Q. The nodes that represent HTML elements are the
Q. The Text and Comment is part of
Q. The node directly above a node is called
Q. The paragraph “p” is a part of
Q. The central object in a larger API is known as
Q. Which property lays the element according to the normal flow?
Q. Which of the following is the default positioning elements with CSS?
Q. Which of the following is an example of a Shortcut Property?
Q. The latest version of CSS is
Q. Which of the following is the Web application equivalent to querySelectorAll()?
Q. Which of the following is the ultiate element selection method?
Q. What does the following code snippet mean? #log>span
Q. Which syntax is used to describe elements in CSS?
Q. The events that are not directly tied to a specific input device are
Q. The high-level events among the following events are
Q. The events that are directly tied to a specific input device are
Q. Which form of event propogation handles the registered container elements?
Q. The process by which the browser decides which objects to trigger event handlers on is
Q. Which property specifies the property of the event?
Q. When will the browser invoke the handler?
Q. In general, event handler is nothing but
Q. Which is the object on which the event occured or with which the event is associated?
Q. The type that specifies what kind of event occured is
Q. Which event can be fired on any scrollable document element?
Q. Which is the property that is triggered in response to JavaScript errors?
Q. Which is the opposite to the load event in JavaScript?
Q. Which is the alternative to the load event?
Q. The events that represents occurrences related to the browser window are
Q. Which are the events that have default actions that can be canceled by event handlers?
Q. The client-side JavaScript’s asynchronous programming model contains
Q. The video and the audio belong to the
Q. The events that are not triggered directly by user activity are called
Q. Which event is triggered sooner when the document and its elements are ready to manipulate?
Q. The events that is emulated by the jQuery library are
Q. The element that can also register handlers for load and error events is
Q. The focus and blur events are also part of
Q. When is the mouseout event fired?
Q. When is the mouseover event fired?
Q. How to detect and respond to mouse drags?
Q. Which of the following keys are set to true when the keyboard modifier keys are held down?
Q. The properties that specify the position and button state of the mouse are
Q. When are the mouse events generated?
Q. Which API allows scripts in a document from one server to exchange messages with scripts?
Q. Which of the following are the drag and drop events?
Q. Which two events will have the generated text for key events?
Q. Which of the following is defined by the specification?
Q. Which of the following property specifies the string of text that was entered?
Q. Which property reports rotation around three different mouse wheel axes?
Q. Which object is passed as the argument to handlers for keydown, keyup, and keypress events?
Q. Which of the following are the unnecessary events currently?
Q. DOM Level 3 Events standardizes which of the following events?
Q. Which of the following are the parameters passed to the keymap after installation?
Q. Which method is used to remove a binding?
Q. Which method is used to add a binding?
Q. Which of the following is not the value the key property will hold if the key is a function key?
Q. Which of the following key property holds the key name as a string?
Q. Which of the following are not key event properties?
Q. Which property is used to specify the key type when pressed?
Q. How does a user generate multiple keydown events?
Q. When are the keyboard events fired?
Q. Which method is used to compare the placement of two nodes in the DOM hierarchy (document)?
Q. How to associate an object to a key on a node?
Q. How to test if two nodes are equal?
Q. What is the purpose of the method getUserData(key)?
Q. Which of the following Node object property returns the node immediately before a node?
Q. How many Node object methods are available?
Q. What is the property textContent?
Q. Which of the following Node object property returns the local part of the name of a node?
Q. What is the purpose of the Node object property ownerDocument?
Q. How many node types are there in total?
Q. How many node object properties are there?
Q. Which of the following Node types have a node value equal to null?
Q. How many nodetype – named constants are available?
Q. What is the purpose of the DocumentFragment node type?
Q. Which node type represents the root-node of the DOM tree?
Q. Which of the following is the child(s) of the node type EntityReference?
Q. How can the nodes in the node list be accessed?
Q. What is the purpose of the method item()?
Q. What does the nodeName of the nodeType Document return?
Q. What does a Node object represent?
Q. What is the constraint on the data per cookie?
Q. Which of the following is a boolean cookie attribute?
Q. How can you set a Cookie visibility scope to localStorage?
Q. Which of the following can be used to configure the scope of the Cookie visibility?
Q. Which of the following defines the Cookie visibility?
Q. Which attribute is used to extend the lifetime of a cookie?
Q. Which of the following explains Cookies nature?
Q. The Cookie manipulation is done using which property?
Q. Cookies were originally designed for
Q. Which is the appropriate code to begin a HTTP GET request?
Q. Which of the following is a feature of the HTTP response?
Q. Which of the following are the features of an HTTP request?
Q. Which is the element that has a src property to initiate HTTP GET request?
Q. The other name for Comet is
Q. Which of the below is a lieral reverse of Ajax?
Q. Which of the following uses scripted HTTP?
Q. Which method is an alternative of the property location of a window object?
Q. Which property helps to initiate the HTTP requests?
Q. Which of the following is used for parsing JSON text?
Q. Which of the following is a utility function in jQuery?
Q. Which of the following is an equivalent replacement of $(document).ready(f)?
Q. Which of the following is a heavily overloaded function?
Q. Which is the method that operates on the return value of $()?
Q. Which is the code that asks for the set of all div elements in a document?
Q. Which of the following is a factory function?
Q. Which of the following is a single global function defined in the jQuery library?
Q. Which of the following are the features of jQuery?
Q. Which is the function used to store a value?
Q. Which is the function used to retrieve a value?
Q. What is the lifetime of the data stored through localStorage?
Q. What is the main difference between localStorage and sessionStorage?
Q. The localStorage and sessionStorage belongs to
Q. Which is the most appropriate database for developers requiring huge amount of data?
Q. Which object supports Filesystem API?
Q. Which is the Microsoft’s own proprietary client-side storage?
Q. Which is the storage that allows the caching of web pages and their associated resources?
Q. Which are the forms of client-side storage?
Q. Which is the method to look up the objects for a range of keys?
Q. Which is the function used to look up an object?
Q. What is the alternate way to search in an IndexedDB API?
Q. Which of the following is a feature of the IndexedDB API?
Q. How does IndexedDB provide atomicity?
Q. In the IndexedDB database, database is defined as
Q. Which of the following are objective database and not a relational database?
Q. Which of the following use the Web SQL Database?
Q. The Client-Side Databases are stored in the
Q. When the “end” event fires on EOF when no more data will arrive, which function is called?
Q. What is the method used to pause “data” events?
Q. Which among the following POSIX signals generate events?
Q. When do uncaught exceptions generate events?
Q. Which of the following is an event emitter?
Q. Which function is a synonym for on()?
Q. What is the function used to remove all handlers for name events?
Q. What is the function used to deregister event handler ‘f’?
Q. What are the events generated by the Node objects called?
Q. The new Java arrays can be created into a JavaScript programs using which of the following classes?
Q. The JavaScript classes can be instantiated using _____ operator?
Q. What does Rhino do when the getter and setter methods exist?
Q. Which is a more formal way of importing packages and classes as JavaScript objects?
Q. Which is a useful way to try out small and simple Rhino programs and one-liners?
Q. Which Rhino command quits Rhino environment?
Q. Which of the following reads the textual contents of a URL and returns as a string?
Q. Which of the following are global functions that are not part of core JavaScript?
Q. Which is the method used for registering handlers?
Q. Why does Node not block while waiting for operations to complete?
Q. The necessary globals of a node are defined under which namespace?
Q. Among the below given functions, Node supports which of the following client-side timer functions?
Q. What is the code to print hello one second from now?
Q. What is the command used for debugging output in Node?
Q. What is the alternative command used in Node for load()?
Q. What is the command to run the node programs?
Q. Why does the Node rely on event handlers?
Q. Which is a fast C++ based JavaScript interpreter?
Q. Client-side JavaScript code is embedded within HTML documents in
Q. JavaScript code between a pair of “script” tags are called
Q. Which of the following are not advanced services?
Q. The HTML5 specification includes
Q. The service(s) that enables networking through scripted HTTP requests is
Q. The behaviour of the document elements can be defined by
Q. A JavaScript program can traverse and manipulate document content through
Q. The main purpose of JavaScript in web browser is to
Q. The language is commonly used to
Q. What is the default value of the type attribute?
Q. What will be done if more than one page requires a file of JavaScript code?
Q. One of the main advantage of using src attribute is
Q. What is the code to start displaying the time when document loads?
Q. What is the code for getting the current time?
Q. Which is the root element in a HTML document?
Q. Which character in JavaScript code will be interpreted as XML markup?
Q. When does JavaScript code appear inline within an HTML file?
Q. Which of the following is a way of embedding Client-side JavaScript code within HTML documents?
Q. How to pick a document element based on the value of its id attribute?
Q. Which is the property that represents the content displayed in the window?
Q. When will the window property come into play?
Q. Which of the following is a global object?
Q. The setTimeout() method is used to
Q. Which Window object method is used to display message in a dialog box?
Q. Which property in the Window object is used to refer to a Location object?
Q. Which identifier is used to represent a web browser window or frame?
Q. Which object is the main entry point to all client-side JavaScript features and APIs?
Q. The word “document” mainly refers to
Q. What is the code snippet to change the class and let the stylesheet specify the details?
Q. Which of the following is not an object?
Q. What is the code snippet to update the content of the timestamp element when the user clicks on it?
Q. What is the code snippet to find all container elements with class “reveal”?
Q. When a program contains extensive use of event handlers, which of the following is necessary?
Q. What is the purpose of the event handlers in the JavaScript?
Q. The style property belongs to while of the following object?
Q. What are the properties supporting CSS styles for a document element?
Q. What is the property to access the first child of a node?
Q. Which is more widely used than GWT in Google?
Q. Which of the following is a web application API framework?
Q. Which of the following framework was used by Google for Gmail?
Q. What are the two incompatible versions of YUI?
Q. What does Dojo and YUI have in common?
Q. Which is the in-house library of Yahoo!?
Q. What is the purpose of Dojo framework?
Q. Which of the following frameworks focuses on DOM and Ajax utilities?
Q. Which of the following is not a framework?
Q. The libraries that build a new higher-level API for client-side programming is
Q. Consider the following code snippet data.sort(function(a,b),b-a); What does the above code do?
Q. Which method of the iterable object returns an iterator object for the collection?
Q. Consider the following code snippet [x,y]=[y,x]; What is the result of the above code snippet?
Q. The main difference between the variables declared with var and with let is
Q. Which of the following is the descendant operator?
Q. When will the finally block be called?
Q. What will be the reaction when a catch clause has no conditionals ?
Q. A proper scripting language is a
Q. JavaScript is a _______________ language
Q. Among the following, which one is a ternary operator?
Q. Which of the operator is used to test if a particular property exists or not?
Q. The property of a primary expression is
Q. A function definition expression can be called
Q. The enumeration order becomes implementation dependent and non-interoperable if :
Q. When an empty statement is encountered, a JavaScript interpreter
Q. A conditional expression is also called a
Q. Among the keywords below, which one is not a statement?
Q. What will be the step of the interpreter in a jump statement when an exception is thrown?
Q. What will happen if the body of a for/in loop deletes a property that has not yet been enumerated?
Q. One of the special feature of an interpreter in reference with the for loop is that
Q. What are the three important manipulations done in a for loop on a loop variable?
Q. Javascript is _________ language.
Q. Consider the following code snippet function f() {}; The above prototype represents a
Q. A linkage of series of prototype objects is called as :
Q. JS code included inside head section is loaded before loading page.
Q. JavaScript Code can be called by using _________.
Q. We can embed JS code inside HTML directly ?
Q. Local Browser used for validations on the Web Pages uses __________.
Q. Java Script Variable should be Case ___________.
Q. Spaces,Punctuation marks are called as __________ Symbols in JavaScript.
Q. Variable can hold ________ value at a time.
Q. JavaScript is invented by ________.
Q. The property of JSON() method is:
Q. The meaning for Augmenting classes is that
Q. Consider the following code snippet : var o = new F(); o.constructor === F The output would be :
Q. The functions provide() and require() of Dojo toolkit and Google’s Closure library are used for
Q. The properties of the objects act like different kinds of class members. They are
Q. The four kinds of class members are
Q. The ‘$’ present in the RegExp object is called a
Q. What can be done in order to avoid creation of global variables in JavaScript?
Q. The properties() method is a
Q. The provides() function and the exportsobject are used to
Q. Modules that have more than one item in their API can
Q. The scope of a function is also called as
Q. The maximum number of global symbols a module can define is
Q. Why does JavaScript subset disallow == and !=?
Q. The Crockford’s subset doesnot include which function in JavaScript?
Q. What would be the result of the following statement in JavaScript using regular expression methods ?
Q. The method that performs the search-and-replace operation to strings for pattern matching is
Q. What is the most essential purpose of parantheses in regular expressions ?
Q. What does the subexpression /java(script)?/ result in ?
Q. What will be the result when non greedy repetition is used on the pattern /a+?b/ ?
Q. What does /[^(]* regular expression indicate ?
Q. The regular expression to match any one character not between the brackets is
Q. The method or operator used to identify the array is
Q. The reduce and reduceRight methods follow a common operation called
Q. The primary purpose of the array map() function is that it
Q. What will happen if reverse() and join() methods are used simultaneously ?
Q. Consider the following code snippet : if (!a[i]) continue ; What is the observation made ?
Q. The pop() method of the array does which of the following task ?
Q. Consider the code snippet given below var count = [1,,3]; What is the observation made?
Q. A function with no return value is called
Q. What will happen if a return statement does not have an associated expression?
Q. What is the purpose of a return statement in a function?
Q. When does the function name become optional in JavaScript?
Q. The function definitions in JavaScript begins with
Q. What must be done in order to implement Lexical Scoping?
Q. What kind of scoping does JavaScript use?
Q. What is the difference between the two lines given below ? !!(obj1 && obj2); (obj1 && obj2);
Q. For the below mentioned code snippet: var o = new Object(); The equivalent statement is:
Q. If you have a function f and an object o, you can define a method named m of o with
Q. What is the fundamental rule of lexical scoping?
Q. Which of the following uses a lot of CPU cycles?
Q. Which of the following is most important feature of cloud storage listed below ?
Q. Which of the following is property of ACID principle?
Q. M2M is a term introduced by
Q. In this type of cloud, an organization rents cloud services from cloud providers on- demand basis.
Q. Which of the following network resources can be load balanced?
Q. Logical extension of computation migration is . . . . . . . .
Q. How many EC2 service zones or regions exist?
Q. Three parts of GPS include:
Q. In order to participate in cloud-computing, you must be using the following OS . . . . . . . .
Q. Which of the following can be considered as a distributed caching system?
Q. Which of the following IM client allow their users to connect to the different major IM services?
Q. . . . . . . . . captive requires that the cloud accommodate multiple compliance regimes.
Q. CoAP is a specialized protocol.
Q. Computing capabilities embedded in the environment but typically not mobile
Q. What is the time elapsed after a batch is created?
Q. Which of the following is the central application in the AWS portfolio?
Q. RDS is a . . . . . . . . type of database
Q. Which of the following is the most important area of concern in cloud computing?
Q. Amazon AWS Consists of following services
Q. A file in HDFS that is smaller than a single block size
Q. What do we call string in python 2?
Q. XML tag which represents information related to a REST service request.
Q. Amazon Web Services supports . . . . . . . . Type II Audits.
Q. The degree to which actors are directly linked to one another through cohesive bonds is called as .
Q. Which of the following protocol is used for discovering and retrieving objects from a cloud?
Q. Which among the following command is used to copy a directory from one node to another in HDFS?
Q. Which of the following allows merchants to fill orders through Amazon.com fulfillment service?
Q. In HDFS the files cannot be
Q. Performance metrics for HPC/HTC systems include :
Q. Which of the following backup technique is most space efficient?
Q. Which utility is used for checking the health of an HDFS file system?
Q. An operating system running on a Type . . . . . . . . VM is full virtualization.
Q. Which of the following operation retrieves the newest version of the object?
Q. Which of the following metrics are used to support Elastic Load Balancing?
Q. Publishing messages is handled through . . . . . . . . Class.
Q. Point out the wrong statement :
Q. Which of the following backup create a cloned copy of your current data or drive ?
Q. Which type of Hypervisor is shown in the following figure ?
Q. A web service contract is described using :-
Q. Which of the following impose additional overhead on clients and offer faster transfer?
Q. In para-virtualization, VMs run on hypervisor that interacts with the hardware.
Q. Which of the following factors might offset the cost of offline access in hybrid applications?
Q. Point out the correct statement.
Q. a website with an audio interface that can be accessed through a telephone call
Q. systems used to track and identify the location of objects in real time
Q. What was Hadoop written in?
Q. . . . . . . . . allows different operating systems to run in their own memory space.
Q. A larger cloud network can be built as either a layer 3 or layer 4 network.
Q. websocket is a. . . . . . . . Protocol
Q. The framework groups Reducer inputs by key in . . . . . . . . stage.
Q. The advantage of I/O mapped devices to memory mapped is . . . . . . . .
Q. Notation for defining REST endpoints.
Q. . . . . . . . . method publishes messages to pub/sub.
Q. In multiple VM processing, CPU is alloted to the different processes in form of:
Q. General-purpose class that allows a response to be rendered using a marshaller.
Q. The source of HDFS architecture in Hadoop originated as
Q. . . . . . . . . offers various Linux distributions upon which you can build a virtual machine.
Q. The examples of deployment tools are:
Q. Which one is NOT generally a change after Virtualization?
Q. Point out the wrong statement.
Q. Websocket protocol uses which communication model
Q. Representational State Transfer (REST) is the standard interface between
Q. The number of reduces for the job is set by the user via . . . . . . . .
Q. The topic in the publish method is in which form?
Q. Point out the wrong statement.
Q. The output of the reduce task is typically written to the FileSystem via . . . . . . . .
Q. Point out the wrong statement.
Q. Which of the cloud concept is related to pooling and sharing of resources
Q. Which of the following is the property of the composable component?
Q. The social circles are loosely coupled if there is stringency of direct contact.
Q. Which of the following is open cloud storage management standard by SNIA ?
Q. Which of these techniques is vital for creating cloud-computing centers
Q. Which of the following is correct?
Q. delivery of m-commerce transactions to individuals in a specific location, at a specific time
Q. Annotation added as an input parameter to the handler method.
Q. Which of the following instance has an hourly rate with no long-term commitment?
Q. To configure Jaxb2Marshaller marshaller we require.
Q. Google Docs is a type of cloud computing.
Q. How many technologies are used for most of the syndicated content on the Internet?
Q. Which of the following is the operational domain of CSA(Cloud Security Alliance)?
Q. Which of the following type of virtualization is found in hypervisor such as Microsoft's Hyper-V ?
Q. HTTP is a . . . . . . . . protocol
Q. Which of the following cloud does not require mapping?
Q. . . . . . . . . is used by Amazon Web Services to store copies of a virtual machine.
Q. What are the goals of Hypervisor design?
Q. Which is the latest Operating System?
Q. Which of the following is the most complete cloud computing service model?
Q. What are the drawbacks for Layers?
Q. Which of the following is also referred to edge computing?
Q. In future, companies wont worry about the capital for large data center because of
Q. Which of the following architectural standards is working with cloud computing industry?
Q. In intel's IA-32 architecture there is a separate 16 bit address space for the I/O devices.
Q. Point out the wrong statement :
Q. Which of the following should be replaced with the question mark in the following figure?
Q. What's the most popular use case for public cloud computing today?
Q. Which of the following is also referred to as Short Message Service?
Q. AMI(Amazon Machine Image) imaging service is provided by Amazon for . . . . . . . .
Q. The marshaller used by MarshallingView belongs to one of a series of XML marshallers.
Q. The system is notified of a read or write operation by . . . . . . . .
Q. Which of the following feature make cloud-based storage systems highly reliable?
Q. Which of the following is a more sophisticated load balancer?
Q. Cloud Services have a. . . . . . . . relationship with their customers.
Q. Full virtualization Full virtualization
Q. Point out the wrong statement.
Q. . . . . . . . . tags needs an external source to wake up the battery.
Q. Which of the following system does not provision storage to most users ?
Q. Which of the following software can be used to implement load balancing?
Q. Cloud . . . . . . . . are standardized in order to appeal to the majority of its audience.
Q. In 6LoWPAN address, how many bits are globally unique?
Q. What is the name of the organization helping to foster security standards for cloud computing?
Q. Every call to publish() will return a class that conforms to the . . . . . . . . interface.
Q. Which of the following makes sure that data is not changed when it not supposed to be?
Q. . . . . . . . . enables batch processing, which greatly speeds up high-processing applications.
Q. The reputation for cloud computing services for the quality of those services is shared by
Q. The measures of centrality include:
Q. Which of the following operating system support operating system virtualization ?
Q. What is Onion diagram illustrates?
Q. The types of AMI provided by AWS are:
Q. Which of the following service provider provides the least amount of built in security?
Q. Which of the following is the deployment model?
Q. Which of the following is correct?
Q. Process of identifying any individual
Q. Which of the following was one of the weaker aspects of early cloud computing service offerings?
Q. Point out the wrong statement.
Q. Which one of the cases not impacting major system availability
Q. Amazon EMR uses Hadoop processing combined with several . . . . . . . . products.
Q. RestTemplate class method which performs an HTTP HEAD operation.
Q. Which of the following is the most refined and restrictive service model?
Q. There is no built-in framework in Docker for testing.
Q. Which of the following IEEE standards provides the lowest level of the ZigBee software stack?
Q. Which of the following protocol is not an Internet Engineering Task Force standard?
Q. In distributed system, each processor has its own . . . . . . . .
Q. Which of the following will be the host operating system for Windows Server?
Q. Most of the cloud architectures are built on this type of architecture.
Q. The Cloudlets have a . . . . . . . . ownership unlike that of Clouds.
Q. Which of the following is true of cloud computing?
Q. Out of the following which is not element of threat modelling
Q. Responsibility of OS developers to add new feature in existing OS are
Q. Point out the correct statement.
Q. Which of the following should be used considering factors shown in the figure?
Q. What is the full form of SCADA?
Q. Which of the following is false?
Q. In case of , the GPS works as a receiver, not a transmitter.
Q. The service FreeDrive is storage that allows . . . . . . . . users to view the content of others.
Q. To decide on a backup strategy for your organization, which of the following should you consider?
Q. In particular, layers have which of the following characteristics?
Q. Point out the wrong statement :
Q. Which of the following is true with respect to layered architecture?
Q. Which of the following should be placed in second lowermost layer for the following figure?
Q. The typical three-layer switching topology will not create latency within a cloud network.
Q. Calculating the location of a mobile device from signals sent by the device to base stations
Q. Which of these is not an antecedent of the cloud?
Q. Which of the following is the full form of XMPP?
Q. Which of the following uses an authentication device?
Q. The percentage of time the system is up and running smoothly is referred as . . . . . . . .
Q. a technology that offers Internet browsing from wireless devices
Q. Which of the following is essential concept related to Cloud?
Q. NameNode and DataNode do communicate using
Q. Which of the following can be done with S3 buckets through the SOAP and REST APIs?
Q. . . . . . . . . is the degree to which nodes have a common set of connections to other nodes
Q. Which of the following is open and both hypervisor and processor-architecture- agnostic?
Q. . . . . . . . . is a service that creates and manages virtual network interfaces.
Q. Virtual Machine Ware (VMware) is an example of
Q. Which of the following is not involved in working of IoT?
Q. In a scheme, the VM is installed as a Type 1 Hypervisor directly onto the hardware.
Q. Google Apps Engine is a type of
Q. What second programming language did Google add for App Engine development?
Q. Which of the following is relational database service provided by Amazon?
Q. Point out the correct statement.
Q. Bare metal hypervisor sits on top of
Q. Point out the correct statement.
Q. Which of the following qualifies as best DR (Disaster Recovery) site?
Q. Which of the following is the heart of a SCADA system?
Q. Which of the following model type is not trusted in terms of security?
Q. which of the following are the controls of Ajax?
Q. Network bottlenecks occur when . . . . . . . . data sets must be transferred
Q. Point out the wrong statement.
Q. Cloud computing is a . . . . . . . . system and it is necessarily unidirectional in nature.
Q. Which of the following is Type 1 Hypervisor ?
Q. Amazon Web Services is which type of cloud computing distribution model?
Q. An internal cloud is . . . . . . . .
Q. Annotation which allows the Jaxb2Marshaller marshaller to detect a class's (i.e., object's) fields.
Q. Which of the following is built on top of a Hadoop framework using the Elastic Compute Cloud?
Q. Which of the following is not provided by "Deep Web"?
Q. Which of these statements regarding sensors is TRUE?
Q. Which of the following is not a type of cloud?
Q. The namenode knows that the data node is active using a mechanism known as
Q. Which of the following service provider provides the highest level of service?
Q. Which of the following is the highest degree of integration in cloud computing?
Q. In memory-mapped I/O . . . . . . . .
Q. Vehicle mount solutions • Handheld solutions • Hands-free and voice solutions
Q. Which of the following is not a characteristic of a ZigBee network?
Q. Point out the correct statement.
Q. Amazon Web Services (AWS) is an example of. . . . . . . .
Q. Which of the following is used to define the service component that performs the service?
Q. Which of the following runs on Xen Hypervisor?
Q. What is the full form of WLAN?
Q. Which of the following is not a correct way to secure communication layer
Q. Accessing a third-party REST service inside a Spring application.
Q. Which of the following is incorrect?
Q. Cloud system from SGI is functionally considered as an . . . . . . . . .
Q. Point out the correct statement.
Q. Which of the following is a good example of an SMS service organized into a social network and blog?
Q. Which of the following is used as middleware layer in the following figure?
Q. CoAP provides which of the following requirements?
Q. Even with two-factor authentication, users may still be vulnerable to . . . . . . . . attacks.
Q. The standard for deploying web services on the Java EE platform as of Java EE 1.4:-
Q. When a client contacts the namenode for accessing a file, the namenode responds with
Q. Which of the following service is provided by Google for online storage?
Q. Point out the wrong statement.
Q. Point out the correct statement.
Q. Point out the correct statement.
Q. Which of the following statements about Google App Engine (GAE) is INCORRECT.
Q. Point out the correct statement.
Q. Cloud storage data usage in the year 2020 is estimated to be . . . . . . . .percent resident by IDC.
Q. Which of the following is the simplest unmanaged cloud storage device?
Q. Point out the wrong statement.
Q. Which of the following is not the feature of Network management systems?
Q. Which of the following file transfer utility creates a shared folder metaphor using a Web service?
Q. The need for data replication can arise in various scenarios like
Q. Point out the wrong statement.
Q. Which of the following algorithm is used by Google to determine the importance of a particular page?
Q. Communication between services is done widely using . . . . . . . . protocol
Q. A service that concentrates on hardware follows the . . . . . . . . as a Service model.
Q. Smart Dust can be used to measure the
Q. Amazon Web Services falls into which of the following cloud-computing category?
Q. Which vendor recently launched a cloud-based test and development service for enterprises?
Q. Which of the following captive area deals with monitoring?
Q. The three major components of RFID hardware based on functionality include :
Q. Docker can simplify both, . . . . . . . . and . . . . . . . .
Q. Point out the correct statement.
Q. What is HDFS Block in Hadoop?
Q. Process that prevents someone from denying that she accessed resource
Q. Which containers are used by Docker severs?
Q. Virtualization allows sharing the resources of hardware across multiple a environments.
Q. Internet provides . . . . . . . . for remote login.
Q. Which of the following is a workflow control and policy based automation service by CA?
Q. Which of the following application is a newsreader?
Q. How many arguments are accepted by publish()?
Q. Which of the following is a SaaS characteristic?
Q. Point out the correct statement.
Q. Which of the following is one of the unique attributes of Cloud Computing?
Q. Exposing a stand-alone SOAP endpoint using the:-
Q. . . . . . . . . feature allows you to optimize your system and capture all possible transactions.
Q. What is default replication factor?
Q. Which of the following is the form of unmanaged cloud storage?
Q. Which of the following is Backup software?
Q. Which of the following is Type 2 VM?
Q. What are the different types of instances?
Q. The usual BUS structure used to connect the I/O devices is . . . . . . . .
Q. If one site fails in distributed system then
Q. Point out the correct statement.
Q. . . . . . . . . error will show if we try to send text string instead of bytes.
Q. Which of the following is a key mechanism for protecting data?
Q. Point out the correct statement.
Q. The process wherein the processor constantly checks the status flags is called as
Q. Point out the wrong statement.
Q. Point out the wrong statement.
Q. what facet of cloud computing helps to guard against downtime and determines costs?
Q. Basic approach of Docker as a company is:
Q. Point out the wrong statement.
Q. Which of the following area of cloud computing is uniquely troublesome?
Q. Which of the following subject area deals with pay-as-you-go usage model?
Q. Which of the following policies is not mentioned in 'not to violate' regarding CloudBurst?
Q. Which of the following can manage data from CIFS and NFS file systems over HTTP networks?
Q. Which among the following is the duties of the Data Nodes
Q. Which of the following services that need to be negotiated in Service Level Agreements?
Q. JavaScript is also called server-side JavaScript.
Q. Which of the following can be identified as cloud?
Q. Which among the following are the duties of the NameNodes
Q. Which of the following is the correct statement?
Q. Which of the following is another name for the system virtual machine?
Q. The technology used to distribute service requests to resources is referred to as . . . . . . . .
Q. VMM is
Q. Which of the following are a common means for losing encrypted data?
Q. a wireless version of the Ethernet networking standard
Q. . . . . . . . . is a pay-as-you-go model matches resources to need on an ongoing basis.
Q. Point out the correct statement.
Q. Point out the wrong statement.
Q. Which of the architectural layer is used as a front end in cloud computing?
Q. Which of the following is not the component of a SCADA system?
Q. Amazon's Elastic Compute Cloud (EC2) is a well known . . . . . . . .
Q. The BEST way to define Virtualization in cloud computing is
Q. What widely used service is built on cloud-computing technology?
Q. Which of these is not a major type of cloud computing usage?
Q. Which are the three conceptual layers in CometCloud?
Q. "Cloud" in cloud computing represents what?
Q. Virtual Machines (VMs) are offered in cloud by
Q. The cloud media services are:
Q. The term 'Cloud' in cloud-computing refers to . . . . . . . .
Q. A . . . . . . . . service provider gets the same benefits from a composable system that a user does.
Q. The following flowchart is intended to evaluate in any cloud.
Q. automatically identifying a Web user's location
Q. Which of the following is not a cloud stakeholder?
Q. What is the typical range of transmission distance in a ZigBee network?
Q. Docker is generally configured to use TCP port . . . . . . . . while managing encrypted traffic.
Q. Which of the following is Cloud Platform by Amazon?
Q. Processes on the remote systems are identified by . . . . . . . .
Q. URI and content type support is which protocol feature?
Q. CNS stands for . . . . . . . .
Q. The message in pub/sub is an opaque blob of . . . . . . . .
Q. Which of the following aspect of the service is abstracted away?
Q. AMIs are operating systems running on the . . . . . . . . virtualization hypervisor.
Q. Which of the following is not a messaging mode in CoAP?
Q. Dynamic content presented in Google . . . . . . . . crawling isn't normally indexed.
Q. In distributed systems, link and site failure is detected by . . . . . . . .
Q. Publishing an application's data as a REST service requires.
Q. The advantages of Ajax is . . . . . . . .
Q. In threat modeling, what methodology used to perform risk analysis
Q. IEEE 802.15.4 uses which of the following for accessing the channel?
Q. Does publish() method accepts arbitrary arguments.
Q. Which one of the statement is generally NOT correct for Microkernelized Hypervisor?
Q. . . . . . . . . is the central application in the AWS portfolio.
Q. Point out the wrong statement.
Q. Point out the correct statement.
Q. Which of the following feature is used for scaling of EC2 sites?
Q. Dynamodb is . . . . . . . . type of storage
Q. Two main components in Docker are:
Q. Point out the correct statement.
Q. Which of the following is an online backup and storage system?
Q. Which of the following protocol lets a Web site list in an XML file information?
Q. Which of the following statement is wrong about Amazon S3?
Q. . . . . . . . . enables the migration of the virtual image from one physical machine to another.
Q. Storage classes available with Amazon s3 are -
Q. Point out the wrong statement.
Q. What is Relaxed Layered Style?
Q. Point out the correct statement.
Q. Which of the following is a compliance standard?
Q. π= n T ,total= n [kTo+Te(n,m)] The above equa on calculates the value of which of the following?
Q. Cloud providers provide cloud services to the cloud users.
Q. Which of these companies specializes in cloud computing management tools and services?
Q. Which of the following is a billing and account management service?
Q. The method which offers higher speeds of I/O transfers is . . . . . . . .
Q. Which of the following provider rely on the virtual machine technology to deliver servers?
Q. Which of the following was developed an alternative to XML syndication by IETF?
Q. Which of the following is best known service model?
Q. a wireless telecommunications network for device-to-device connections within a very short range
Q. If the IP address or hostname of a data node changes
Q. Users can control which keys (and hence records) go to which Reducer by implementing a custom?
Q. The . . . . . . . . is something that you can obtain under contract from your vendor.
Q. Which of the following benefit is provided by the PaaS service provider
Q. Which of the following can be used for reducing recovery time?
Q. Which of the following provides a bridge between a company's existing network and the AWS cloud?
Q. How many categories of storage devices broadly exist in cloud?
Q. Service exporters that can export a bean as a remote service based on the :-
Q. Point out the wrong statement.
Q. What is the name of Rackspace's cloud service?
Q. Which of the following is a repeatable task within a business process?
Q. Which of the following is used to extend CIM to virtual computer system management?
Q. AWS reaches customers in . . . . . . . . countries.
Q. How many types of protocols are important for instant messaging?
Q. Which of the following technology is used for syndicated content?
Q. Which of the following protocol is adopted for interoperability by top three IM service providers?
Q. What is the default size of HDFS Data Block?
Q. Point out the wrong statement.
Q. Which of the following component is called hypervisor?
Q. To publish a REST service with Spring.
Q. Point out the correct statement.
Q. What license is Hadoop distributed under?
Q. gateway to the Internet optimized for mobility
Q. Point out the wrong statement :
Q. Factory to use our Spring bean as the implementation:-
Q. In Comet, a tuple is a simple string
Q. Keywords in Docker are . . . . . . . .
Q. Which of the following is Amazon's technical support and consulting business?
Q. Which among the following is the correct statement
Q. Point out the wrong statement.
Q. Open source software used in a SaaS is called . . . . . . . . SaaS.
Q. . . . . . . . . has many of the characteristics of what is now being called cloud computing.
Q. Spring provides a factory that can export beans annotated with:-
Q. Which of the following statements are true?
Q. Amazon Elastic Compute Cloud (Amazon EC2) is a web service based on
Q. Which of the following is a batch processing application?
Q. Docker is generally configured to use TCP port . . . . . . . . while executing unencrypted traffic
Q. Point out the wrong statement.
Q. Which of the following offers Storage size of 10GB free to 100GB paid?
Q. Computing capabilities embedded into objects around us (mobile and stationary)
Q. The capability of a system to adapt the increased service load is called . . . . . . . .
Q. SaaS supports multiple users and provides a shared data model through . . . . . . . . model.
Q. Which of the following is not the component of IoT Endpoint
Q. Which of the following has infrastructure security managed and owned by the vendor?
Q. Point out the wrong statement.
Q. . . . . . . . . tags contain battery and transmit signals autonomously
Q. For the frequently accessed HDFS files the blocks are cached in
Q. Which of the following is considered an essential element in cloud computing by CSA?
Q. Point out the correct statement.
Q. Network operating system runs on
Q. Which of the following is a specification for multicast discovery on a LAN?
Q. Which of the following language is used to build a message server queue in twitter?
Q. Which of the following type of virtualization is also characteristic of cloud computing?
Q. When you publish a message . . . . . . . . is automatically created?
Q. Point out the wrong statement.
Q. Request field is present in which message format?
Q. Which of the following is used for Web performance management and load testing?
Q. Which of the following techniques can be used for optimizing backed up data space?
Q. Point out the wrong statement.
Q. Amazon EC2 provides virtual computing environments, known as :
Q. Which of the following file format is used by RSS module?
Q. Point out the correct statement.
Q. Which of the following was one of the top 5 cloud applications in 2010?
Q. Point out the wrong statement.
Q. Amazon Relational Database Service is a variant of the . . . . . . . . 5.1 database system.
Q. REST service end point comprises an address.
Q. Which of the following is the standard for interoperable cloud-based key management?
Q. Which scenario demands highest bandwidth for data transfer between nodes
Q. Which of the following is an example of an unmanaged storage utility set up to do automated backups?
Q. Data stored in . . . . . . . . domains doesn't require maintenance of a schema.
Q. Point out the correct statement.
Q. Tomcat doesn't support JAX-WS by itself.
Q. Which of the following model model include a backwards elimination feature selection routine?
Q. Which of the following method(s) does not have closed form solution for its coefficients?
Q. What do you mean by generalization error in terms of the SVM?
Q. Attribute selection measures are also known as splitting rules.
Q. Which of the following selects the best K high-score features.
Q. The process of forming general concept definitions from examples of concepts to be learned.
Q. The SVM's are less effective when:
Q. . . . . . . . . showed better performance than other approaches, even without a context-based model
Q. High entropy means that the partitions in classification are
Q. True or False: Dropout is computationally expensive technique w.r.t. bagging
Q. . . . . . . . . performs a PCA with non-linearly separable data sets.
Q. A good clustering method will produce high quality clusters with
Q. A measure of goodness of fit for the estimated regression equation is the
Q. Which one of the following is not a major strength of the neural network approach?
Q. Which of the following is true about averaging ensemble?
Q. The network that involves backward links from output to the input and hidden layers is called
Q. While using . . . . . . . . all labels are turned into sequential numbers.
Q. Which of the one is true about Heteroskedasticity?
Q. In multiclass classification number of classes must be
Q. In reinforcement learning, this feedback is usually called as . . . . . . . .
Q. If X and Y in a regression model are totally unrelated,
Q. What is the purpose of performing cross-validation?
Q. Problem: Players will play if weather is sunny. Is this statement is correct?
Q. A measurable property or parameter of the data-set is
Q. Database query is used to uncover this type of knowledge.
Q. Which of the following sentence is FALSE regarding regression?
Q. Which statement is true about neural network and linear regression models?
Q. Which of the following are components of generalization Error?
Q. Impact of high variance on the training set ?
Q. Linear SVMs have no hyperparameters that need to be set by cross-validation
Q. Which of the following is a reasonable way to select the number of principal components "k"?
Q. How many terms are required for building a bayes model?
Q. Bernoulli Nave Bayes Classifier is . . . . . . . .distribution
Q. The standard error is defined as the square root of this computation.
Q. Which of the following sentence is correct?
Q. A supervised scenario is characterized by the concept of a . . . . . . . .
Q. his clustering approach initially assumes that each data instance represents a single cluster.
Q. The cost parameter in the SVM means:
Q. . . . . . . . . which can accept a NumPy RandomState generator or an integer seed.
Q. Point out the wrong statement.
Q. In SVM, Kernel function is used to map a lower dimensional data into a higher dimensional data.
Q. Data used to optimize the parameter settings of a supervised learner model.
Q. What is the naive assumption in a Naive Bayes Classifier.
Q. The leaf nodes of a model tree are
Q. . . . . . . . . provides some built-in datasets that can be used for testing purposes.
Q. Given a frequent itemset L, If |L| = k, then there are
Q. Of the Following Examples, Which would you address using an supervised learning Algorithm?
Q. Common deep learning applications / problems can also be solved using . . . . . . . .
Q. Choose the correct statement with respect to 'confidence' metric in association rules
Q. This supervised learning technique can process both numeric and categorical input attributes.
Q. If TP=9 FP=6 FN=26 TN=70 then Error rate will be
Q. How to select best hyperparameters in tree based models?
Q. Naive Bayes classifiers are a collection . . . . . . . . of algorithms
Q. If {A,B,C,D} is a frequent itemset, candidate rules which is not possible is
Q. What does K refers in the K-Means algorithm which is a non-hierarchical clustering approach?
Q. If two variables are correlated, is it necessary that they have a linear relationship?
Q. True or False: Ensemble learning can only be applied to supervised learning methods.
Q. Techniques involve the usage of both labeled and unlabeled data is called . . . . . . . .
Q. In Apriori algorithm, if 1 item-sets are 100, then the number of candidate 2 item-sets are
Q. Which of the following statements about Naive Bayes is incorrect?
Q. Multinomial Nave Bayes Classifier is . . . . . . . . distribution
Q. What is the precision value for following confusion matrix of binary classification?
Q. Common deep learning applications include . . . . . . . .
Q. True or False: In boosting, individual base learners can be parallel.
Q. MLE estimates are often undesirable because
Q. Which of the following is a common use of unsupervised clustering?
Q. PCA can be used for projecting and visualizing data in lower dimensions.
Q. Which of the following selects only a subset of features belonging to a certain percentile
Q. The adjusted multiple coefficient of determination accounts for
Q. Any linear combination of the components of a multivariate Gaussian is a univariate Gaussian.
Q. Clustering is . . . . . . . . and is example of . . . . . . . . learning
Q. Which of the folllowing is an example of feature extraction?
Q. Which statement is true about prediction problems?
Q. PCA is
Q. The number of iterations in apriori . . . . . . . . Select one:
Q. . . . . . . . . which can accept a NumPy RandomState generator or an integer seed.
Q. Which of the following is not supervised learning?
Q. If two variables are correlated, is it necessary that they have a linear relationship?
Q. With Bayes theorem the probability of hypothesis(H) specified by P(H) is referred to as
Q. How can we best represent 'support' for the following association rule: "If X and Y, then Z".
Q. Which statement is true about the K-Means algorithm?
Q. Which of the following is an application of NN (Neural Network)?
Q. The correlation coefficient for two real-valued attributes is -0.85. What does this value tell you?
Q. Which of the following method is used to find the optimal features for cluster analysis
Q. Lasso can be interpreted as least-squares linear regression where
Q. In the regression equation Y = 75.65 + 0.50X, the intercept is
Q. Tree/Rule based classification algorithms generate ... rule to perform the classification.
Q. Problem in multi regression is ?
Q. How can you avoid overfitting ?
Q. In Naive Bayes equation P(C|X)= P(X|C)∗P(C) P(X) which part considers "likelihood"?
Q. Which of the following indicates the fundamental of least squares?
Q. The firing rate of a neuron
Q. When the C parameter is set to infinite, which of the following holds true?
Q. You are given sesimic data and you want to predict next earthquake , this is an example of
Q. The effectiveness of an SVM depends upon:
Q. SVM can solve linear and non-linear problems
Q. Which of the following can help to reduce overfitting in an SVM classifier?
Q. Hierarchical clustering is slower than non-hierarchical clustering?
Q. It is not necessary to have a target variable for applying dimensionality reduction algorithms
Q. Gaussian Nave Bayes Classifier is . . . . . . . . distribution
Q. Which of the following is an example of a deterministic algorithm?
Q. For the given weather data, Calculate probability of playing
Q. overlearning causes due to an excessive . . . . . . . .
Q. Following are the types of supervised learning
Q. Following is powerful distance metrics used by Geometric model
Q. This clustering algorithm merges and splits nodes to help modify nonoptimal partitions.
Q. What can be major issue in Leave-One-Out-Cross-Validation(LOOCV)?
Q. Which one of these is a tree based learner?
Q. The "curse of dimensionality" referes
Q. What are tree based classifiers?
Q. Which of the following is the difference between stacking and blending?
Q. If Linear regression model perfectly first i.e., train error is zero, then . . . . . . . .
Q. It is possible to design a Linear regression algorithm using a neural network?
Q. Can we calculate the skewness of variables based on mean and median?
Q. The gini index is not biased towards multivalued attributed.
Q. Features being classified is . . . . . . . . of each other in Nave Bayes Classifier
Q. Which of the following is a good test dataset characteristic?
Q. Which of the following are supervised learning applications
Q. Linear Regression is a supervised machine learning algorithm.
Q. The F-test
Q. Which of the following is a categorical data?
Q. How it's possible to use a different placeholder through the parameter . . . . . . . .
Q. The most general form of distance is
Q. The average positive difference between computed and desired outcome values.
Q. Which of the following option is true about k-NN algorithm?
Q. Which of the following function provides unsupervised prediction ?
Q. Which of the following is true about Manhattan distance?
Q. Supervised learning and unsupervised clustering both require at least one
Q. Regression trees are often used to model . . . . . . . . data.
Q. What are the two methods used for the calibration in Supervised Learning?
Q. In PCA the number of input dimensiona are equal to principal components
Q. For the given weather data, Calculate probability of not playing
Q. Which of the following is true about Residuals ?
Q. Type of matrix decomposition model is
Q. Supervised learning differs from unsupervised clustering in that supervised learning requires
Q. Which Association Rule would you prefer
Q. scikit-learn also provides functions for creating dummy datasets from scratch:
Q. With Bayes classifier, missing data items are
Q. Which statement about outliers is true?
Q. Another name for an output attribute.
Q. Type of dataset available in Supervised Learning is
Q. What are two steps of tree pruning work?
Q. In the example of predicting number of babies based on stork's population ,Number of babies is
Q. The multiple coefficient of determination is computed by
Q. Commons unsupervised applications include
Q. Hierarchical agglomerative clustering is typically visualized as?
Q. If an item set 'XYZ' is a frequent item set, then all subsets of that frequent item set are
Q. What does dimensionality reduction reduce?
Q. To determine association rules from frequent item sets
Q. Which of the following method is used for multiclass classification?
Q. Suppose you are using RBF kernel in SVM with high Gamma value. What does this signify?
Q. What is PCA, KPCA and ICA used for?
Q. A person trained to interact with a human expert in order to capture their knowledge.
Q. The linear SVM classifier works by drawing a straight line between two classes
Q. Which learning Requires Self Assessment to identify patterns within data?
Q. In what type of learning labelled training data is used
Q. Which are two techniques of Machine Learning ?
Q. If machine learning model output doesnot involves target variable then that model is called as
Q. What is 'Overfitting' in Machine learning?
Q. Which of the following is not Machine Learning?
Q. What are the different Algorithm techniques in Machine Learning?
Q. If machine learning model output involves target variable then that model is called as
Q. Application of machine learning methods to large databases is called
Q. The output of training process in machine learning is
Q. Which of the following is the best machine learning method?
Q. In simple term, machine learning is
Q. What is Model Selection in Machine Learning?
Q. Machine learning techniques differ from statistical techniques in that machine learning methods
Q. Which of the following is characteristic of best machine learning method ?
Q. What are the popular algorithms of Machine Learning?
Q. What characterize is hyperplance in geometrical model of machine learning?
Q. What characterize unlabeled examples in machine learning
Q. Wrapper methods are hyper-parameter selection methods that
Q. Which of the following can only be used when training data are linearlyseparable?
Q. What are common feature selection methods in regression task?
Q. Following are the descriptive models
Q. Which of the following methods do we use to find the best fit line for data in Linear Regression?
Q. The average squared difference between classifier predicted output and actual output.
Q. Which of the following techniques would perform better for reducing dimensions of a data set?
Q. Which among the following statements best describes our approach to learning decision trees
Q. Linear Regression is a . . . . . . . . machine learning algorithm.
Q. KDD represents extraction of
Q. Which of the following is true about Naive Bayes?
Q. what is Feature scaling done before applying K-Mean algorithm?
Q. Computers are best at learning
Q. This technique associates a conditional probability value with each data instance.
Q. Data used to build a data mining model.
Q. When the number of classes is large Gini index is not a good choice.
Q. Can we extract knowledge without apply feature selection
Q. What is the approach of basic algorithm for decision tree induction?
Q. The . . . . . . . . of the hyperplane depends upon the number of features.
Q. What would you do in PCA to get the same projection as SVD?
Q. For the given weather data, what is the probability that players will play if weather is sunny
Q. A nearest neighbor approach is best used
Q. The soft margin SVM is more preferred than the hard-margin SVM when-
Q. what is the function of 'Unsupervised Learning'?
Q. Gini index does not favour equal sized partitions.
Q. what is the function of 'Supervised Learning'?
Q. The problem of finding hidden structure in unlabeled data is called . . . . . . . .
Q. What do you mean by a hard margin?
Q. What does learning exactly mean?
Q. Features being classified is independent of each other in Nave Bayes Classifier
Q. The distance between two points calculated using Pythagoras theorem is
Q. Naive Bayes classifiers is . . . . . . . . Learning
Q. Which of the following statement is true about outliers in Linear regression?
Q. Reinforcement learning is particularly efficient when . . . . . . . .
Q. Which of the following sentences are true?
Q. Which of the following are real world applications of the SVM?
Q. Which of the following algorithm comes under the classification
Q. If there is only a discrete number of possible outcomes called . . . . . . . .
Q. The main disadvantage of maximum likelihood methods is that they are . . . . . . . .
Q. Support vectors are the data points that lie closest to the decision
Q. What does the acronym "SQL" stand for in the context of databases?
Q. What is the main purpose of the K-means clustering algorithm?
Q. What does the term "cross-validation" refer to in machine learning?
Q. What is the primary goal of exploratory data analysis (EDA)?
Q. In the CRISP-DM data mining process model, what does "DM" stand for?
Q. What does the term "overfitting" mean in machine learning?
Q. In the context of data ethics, what does "bias mitigation" refer to?
Q. What is the primary goal of A/B testing in data analysis?
Q. In data science, what does the acronym "ETL" stand for?
Q. What is the term for the process of finding and correcting errors in a dataset?
Q. What statistical technique is used to estimate population parameters from a sample of data?
Q. In the context of data analysis, what is the primary goal of hypothesis testing?
Q. What does the acronym "API" stand for in the context of data and software integration?
Q. What is the term for the process of converting text data into numerical form for machine learning?
Q. What is the primary purpose of feature scaling in machine learning?
Q. What is the main purpose of the K-nearest neighbors (K-NN) algorithm in machine learning?
Q. In machine learning, what is the primary purpose of cross-validation?
Q. What does the acronym "ETL" stand for in the context of data warehousing?
Q. What is the primary purpose of the "Confusion Matrix" in the evaluation of classification models?
Q. What does the term "imputation" refer to in data preprocessing?
Q. What is the primary purpose of the "Pearson correlation coefficient" in statistics?
Q. What does the term "bias" refer to in machine learning and statistics?
Q. In the context of natural language processing (NLP), what does "TF-IDF" stand for?
Q. What is the primary goal of feature engineering in machine learning?
Q. What does the term "ensemble learning" refer to in machine learning?
Q. In data science, what is the term for the process of finding and handling missing data in a dataset?
Q. In data science, what does the term "categorical encoding" refer to?
Q. What is the primary purpose of the "F1 score" in the evaluation of classification models?
Q. In the context of data ethics, what does "data anonymization" refer to?
Q. What is the primary purpose of the "Naive Bayes" algorithm in machine learning?
Q. In data science, what does the term "outlier" refer to?
Q. What is the main purpose of the Random Forest algorithm in machine learning?
Q. What does the term "precision" represent in the context of classification model evaluation?
Q. In data science, what does the term "skewness" refer to when analyzing data distributions?
Q. What is the primary purpose of "cross-validation" in machine learning?
Q. What is the main objective of "k-means++" initialization in the K-means clustering algorithm?
Q. What is the primary purpose of the "Kolmogorov-Smirnov test" in statistics?
Q. In data science, what does the term "cross-domain analysis" refer to?
Q. What is the primary purpose of the "confounder" variable in statistical analysis?
Q. In the context of data ethics, what is "informed consent"?
Q. What does the term "bias-variance trade-off" refer to in machine learning?
Q. In data science, what does the term "feature extraction" refer to?
Q. What is the primary purpose of the "R-squared" statistic in linear regression analysis?
Q. How many stages commonly occurs in creation of plot?
Q. Which of the following is used to change active graphic device?
Q. Which of the following function is for single checkbox widget?
Q. Which of the following is effective way of checking validity of data analysis?
Q. What does the term "p-value" represent in statistical hypothesis testing?
Q. What is the main purpose of "time series decomposition" in time series analysis?
Q. What is the role of processing code in the research pipeline?
Q. Point out the correct statement.
Q. What does it mean to weave a literate statistical program?
Q. knitr is good for complex time-consuming computations.
Q. Which of the following is similar to a pre-specified clinical trial protocol?
Q. Which of the following is incorrect with respect to use of Poisson distribution?
Q. Which of the following statement will install shiny?
Q. Point out the correct statement.
Q. Which of the following gives reviewers an important tool without dramatically increasing the burden?
Q. Which of the following is required by K-means clustering?
Q. Which of the following global options are available for figures in knitr?
Q. Which of the following is finally produced by Hierarchical Clustering?
Q. Point out the wrong statement.
Q. Result analysis are relatively easy to replicate or reproduce.
Q. Which of the following statement is used for importing knitr library?
Q. What is the purpose of multiple testing in statistical inference?
Q. The beta distribution is the default prior for parameters between . . . . . . . .
Q. Point out the wrong statement.
Q. Point out the correct statement.
Q. Point out the wrong statement.
Q. Which of the following can be done by shiny?
Q. Which of the following system most often don't have postscript viewer?
Q. The expected value or . . . . . . . . of a random variable is the center of its distribution.
Q. Linear models are the most useful applied statistical technique.
Q. The . . . . . . . . of the Chi-squared distribution is twice the degrees of freedom.
Q. Which of the following dimension type graph is shown in the below figure?
Q. Which of the following package by Yihui is built in to RStudio environment?
Q. Which of the following is used for creating interacting tables?
Q. Which of the following problem is solved by reproducibility?
Q. Which of the following annotation function is used to add or modify text?
Q. Hierarchical clustering should be primarily used for exploration.
Q. The array object returned by __array_prepare__ is passed to the ufunc for computation.
Q. . . . . . . . . decompose the elements of x into mantissa and twos exponent.
Q. Point out the wrong statement.
Q. Which of the following is a bitmap file type?
Q. Point out the wrong statement.
Q. The most familiar place for a plot to be "sent" is screen device.
Q. Original idea comes of Literate Statistical Practice from . . . . . . . .
Q. Which of the following is characteristic of exploratory graph?
Q. Which of the following statement generates a html slide deck from index.Rmd?
Q. Base graphics are used most commonly for creating 2D graphics.
Q. Point out the correct statement.
Q. MathJax is a cross-browser JavaScript library that displays mathematical notation in web browsers.
Q. Which of the following sets the size of the buffer used in ufuncs?
Q. knitr supports only one documentation language.
Q. Point out the wrong statement.
Q. Point out the wrong statement.
Q. Literate program code is live-automatic "regression test" when building a document.
Q. Point out the wrong statement.
Q. Which of the following set the floating-point error callback function or log object?
Q. The core plotting engine is encapsulated in graphics package.
Q. Which of the following returns an array of ones with the same shape and type as a given array?
Q. Point out the wrong statement.
Q. Bayesian inference uses frequency interpretations of probabilities to control error rates.
Q. The . . . . . . . . basically states that the sample mean is consistent.
Q. Usually replacing the standard error by its estimated value does change the CLT.
Q. Which of the following is also referred to as overlayed 1D plot?
Q. Which of the following is a vector file device?
Q. Which of the following statement will install slidify from github?
Q. Point out the correct statement.
Q. K-means is not deterministic and it also consists of number of iterations.
Q. Residual . . . . . . . . plots investigate normality of the errors.
Q. Which of the following information is not given by five-number summary?
Q. Which of the following is a goal of literate statistical programming?
Q. Which of the following random variables are the default model for random samples?
Q. Point out the correct statement.
Q. Which of the following show residuals divided by their standard deviations?
Q. Gosset's distribution is invented by which of the following scientist?
Q. Point out the correct statement.
Q. runApp() will run the shiny and open the browser window.
Q. Which of the following is a property of likelihood?
Q. Which of the following create a Google Gadget based on a Google Visualization Object?
Q. Which of the following random variable that take on only a countable number of possibilities?
Q. Which of the following is the correct formula for total variation?
Q. How many outcomes are possible with bernoulli trial?
Q. Which of the following method creates a new array object that looks at the same data?
Q. Which of the following global option has value "hide"?
Q. Which of the following package is implemented by lattice plotting system?
Q. Point out the wrong statement.
Q. Which of the following is required to implement a literate programming system?
Q. Which of the following is example use of Poisson distribution?
Q. Which of the following mean is a mixture of the MLE and the prior mean?
Q. Which of the following is required to implement a literate programming system?
Q. Which of the following graphs has properties in the below figure?
Q. Which of the following is alternative technique toprincipal component analysis?
Q. Which of the following function displays currently active graphics device?
Q. There are mainly three types of file devices.
Q. Which of the following form the basis for frequency interpretation of probabilities?
Q. Point out the correct statement.
Q. Point out the correct statement.
Q. Which of the following is correct with respect to residuals?
Q. Which of the following is an example of graphics device?
Q. Which of the following function take only single value as input?
Q. The actual chart of gvisBarChart is rendered by the web browser using . . . . . . . . or VML.
Q. Which of the following component is involved in generalized linear models?
Q. The first part of index.Rmd is XML code.
Q. dev.copy2pdf specifically copy a plot to a PDF file.
Q. gvisAnnotationChart charts are interactive time series line charts that support annotations.
Q. Some ufuncs can take output arguments.
Q. Point out the wrong statement with respect to FDR.
Q. Point out the wrong statement.
Q. Which of the following step is not required in data analysis?
Q. How many components are present in generalized linear models?
Q. . . . . . . . . random variables are used to model rates.
Q. gvisAnnotatedTimeLine returns list of class "gvis" and "list".
Q. Which of the following inequality is useful for interpreting variances?
Q. Point out the correct combination related to output statements.
Q. What is one way in which the knitr system differs from Sweave?
Q. Which of the following is contained in NumPy library?
Q. Color and shape are used to add dimensions to graph data.
Q. Which of the following is required for literate programming?
Q. Point out the correct statement.
Q. Point out the wrong statement.
Q. Power is the probability of rejecting the null hypothesis when it is true.
Q. Which of the following function is used for k-means clustering?
Q. Which of the following disadvantage does literate programming have?
Q. Which of the following parameter defines line type such as dashed and dotted?
Q. Which of the following tool can be used for integrating text and code in one document?
Q. Which of the following is the second goal of PCA?
Q. Which of the following function is associated with a continuous random variable?
Q. Which of the following implies no relationship with respect to correlation?
Q. Which of the following goal is incorrectly represented in the below figure?
Q. Which of the following is required for not echoing the code?
Q. ndarray is also known as the alias array.
Q. All of the styled elements are handled through server.R.
Q. Which of the following of a random variable is a measure of spread?
Q. Which of the following is R interface to google charts?
Q. Which of the following value is the most common measure of "statistical significance"?
Q. Which of the following condition should be satisfied by function for pmf?
Q. Which of the following should be set on chunk by chunk basis to store results of computation?
Q. Point out the wrong statement.
Q. Which of the following function can interrupt execution and can be called continuously?
Q. Which of the following graph can be used for simple summarization of data?
Q. Point out the wrong statement.
Q. Point out the correct statement.
Q. Which of the following framework is compatible with slidify?
Q. The square root of the variance is called the . . . . . . . . deviation.
Q. Which of the following can be considered as random variable?
Q. Which of the following project is used for calling R products from web?
Q. Which of the following things can be accomplished with linear model?
Q. Point out the correct statement.
Q. Minimizing the likelihood is the same as maximizing -2 log likelihood.
Q. Which of the following is used for creating tree maps?
Q. Point out the wrong statement.
Q. Which of the following function stacks 1D arrays as columns into a 2D array?
Q. Point out the correct statement.
Q. Which of the following will copy the plot from one device to another?
Q. Statistical inference is the process of drawing formal conclusions from data.
Q. Which of the following can be used for data analysis model?
Q. Which of the following is useful way to put text, code, data, output all in one document?
Q. Some chunks have to be re-computed every time you re-knit the file.
Q. Which of the following function can be replaced with the question mark in the below figure?
Q. Which of the the following graphic device information is odd man out in the below figure?
Q. Which of the following function has parameters shown in the below figure?
Q. Which of the following block information is odd man out in the below figure?
Q. What Python function is used to select specific rows and columns from a Pandas DataFrame?
Q. Which Python library provides tools for working with multi-dimensional arrays and matrices?
Q. What is the primary purpose of the Matplotlib library in Python?
Q. Which Python library is commonly used for statistical analysis and hypothesis testing?
Q. In Python, what is the main purpose of the "groupby" operation in Pandas?
Q. What Python function is used to read a CSV (Comma-Separated Values) file into a Pandas DataFrame?
Q. Which Python library is widely used for creating data visualizations and plots?
Q. What is the primary data structure in Pandas used for storing and working with tabular data?
Q. In Python, which module provides functions for working with dates and times?
Q. What library in Python is commonly used for data manipulation and analysis?
Q. What Python function is used to perform element-wise mathematical operations on Numpy arrays?
Q. What is the primary purpose of the Seaborn library in Python for data analysis and visualization?
Q. In Pandas, what method is used to calculate summary statistics for numerical columns in a DataFrame?
Q. What Python library provides interactive and web-based data visualizations?
Q. Which Python library is commonly used for machine learning and predictive modeling?
Q. In Pandas, what method is used to remove missing values from a DataFrame?
Q. In Python, which library is often used for creating animated and interactive data visualizations?
Q. What is the primary purpose of the "crosstab" function in Pandas?
Q. In Pandas, which method is used to apply a custom function to each element of a DataFrame or Series?
Q. In Python, which library is widely used for time series analysis and forecasting?
Q. What is the primary purpose of the "melt" function in Pandas?
Q. In Pandas, which method is used to pivot data from long to wide format, creating a new DataFrame?
Q. What is the primary purpose of the "pivot_table" function in Pandas?
Q. In Pandas, which method is used to concatenate two or more DataFrames vertically (along rows)?
Q. What is the primary purpose of the "applymap" method in Pandas?
Q. In Python, which library is commonly used for web scraping and extracting data from websites?
Q. What is the primary purpose of the "groupby" method in Pandas when working with categorical data?
Q. In Pandas, which method is used to calculate the mode of a numerical column in a DataFrame?
Q. What is the primary purpose of the "stack" method in Pandas?
Q. What is the primary purpose of the "merge" function in Pandas?
Q. What is the primary purpose of the "fillna" method in Pandas?
Q. What is the primary purpose of the "crosstab" function in Pandas?
Q. What is the primary purpose of the "pivot" method in Pandas?
Q. Which Python library is commonly used for time series forecasting and anomaly detection tasks?
Q. In Pandas, what method is used to remove duplicate rows from a DataFrame based on specified columns?
Q. What is the primary purpose of the "melt" function in Pandas when reshaping data?
Q. In Pandas, what method is used to apply a function to each element of a Series?
Q. What is the primary purpose of the "loc" method in Pandas when working with a DataFrame?
Q. Which Python library is commonly used for creating interactive 3D visualizations and plots?
Q. In Pandas, which method is used to calculate the variance of a numerical column in a DataFrame?
Q. Which Python library is often used for anomaly detection and outlier analysis in time series data?
Q. What is the primary purpose of the "pivot_table" function in Pandas when aggregating data?
Q. What is the primary purpose of the "rolling" method in Pandas when working with time series data?
Q. What is the primary purpose of the "clip" method in Pandas when working with numerical data?
Q. Which of the following object has a method cov to compute covariance between series?
Q. Panel is a container for Series, and DataFrame is a container for dataFrame objects.
Q. Pandas follow the NumPy convention of raising an error when you try to convert something to a bool.
Q. Which of the following works analogously to the form of the dict constructor?
Q. x-ray brings the labeled data power of pandas to the physical sciences.
Q. Which of the following provides a standard API for doing computations with MongoDB?
Q. Which of the following input can be accepted by DataFrame?
Q. Which of the following library is similar to Pandas?
Q. Which of the following is used to generate an index with time delta?
Q. Which of the following operation works with the same syntax as the analogous dict operations?
Q. Which of the following is used for testing for membership in the list of column names?
Q. Which of the following thing can be data in Pandas?
Q. If data is an ndarray, index must be the same length as data.
Q. The plot method on Series and DataFrame is just a simple wrapper around . . . . . . . .
Q. Point out the wrong statement.
Q. Point out the correct statement.
Q. You can create a scatter plot matrix using the . . . . . . . . method in pandas.tools.plotting.
Q. Point out the correct statement.
Q. Which of the following plots are used to check if a data set or time series is random?
Q. The . . . . . . . . project builds on top of pandas and matplotlib to provide easy plotting of data.
Q. Point out the wrong statement.
Q. Which of the following is the base layer for all of the sparse indexed data structures?
Q. Which of the following method can be used to rename categorical data?
Q. Which of the following is used to compute the percent change over a given number of periods?
Q. Which of the following can potentially change the dtype of a series?
Q. Which of the following statement will import pandas?
Q. All values of categorical data are either in categories or np.nan.
Q. Which of the following value is provided by kind keyword for barplot?
Q. Point out the wrong statement.
Q. Which of the following object you get after reading CSV file?
Q. Point out the correct statement.
Q. Point out the wrong statement.
Q. Which of the following is prominent python "statistics and econometrics library"?
Q. Point out the correct statement.
Q. Point out the correct combination with regards to kind keyword for graph plotting.
Q. Point out the correct statement.
Q. Which of the following is not an indexed object?
Q. Andrews curves allow one to plot multivariate data.
Q. . . . . . . . . plots are used to visually assess the uncertainty of a statistic.
Q. Point out the wrong statement.
Q. Point out the correct statement.
Q. Which of the following is used for machine learning in python?
Q. Which of the following makes use of pandas and returns data in a series or dataFrame?
Q. In a capstone project, what is the role of data visualization and storytelling?
Q. What is the primary objective of a data science capstone project presentation?
Q. Which of the following is NOT a typical deliverable in a data science capstone project?
Q. In a capstone project, what is the purpose of the "exploratory data analysis" phase?
Q. What is the role of a mentor or advisor in a data science capstone project?
Q. In a data science capstone project, what is the significance of a well-defined problem statement?
Q. Which phase of a typical data science project lifecycle does the capstone project often align with?
Q. What is the primary goal of a data science capstone project?
Q. What is the significance of "deployment" in the context of a data science capstone project?
Q. What is the primary role of "model evaluation" in a data science capstone project?
Q. In a data science capstone project, what does "feature engineering" involve?
Q. Why is it important to define clear success criteria for a data science capstone project?
Q. What is the primary purpose of the "problem statement" in a data science capstone project?
Q. What is the primary objective of a data science capstone project's final report?
Q. What is the significance of peer evaluation in a data science capstone project?
Q. Why is it important to document the project report in a data science capstone project?
Q. What does the term "data wrangling" refer to in the context of a data science capstone project?
Q. What is the significance of "domain knowledge" in the context of a data science capstone project?
Q. In a data science capstone project, what is the role of "data augmentation"?
Q. What is the primary goal of "reproducibility" in a data science capstone project?
Q. In a data science capstone project, what is the role of "data validation" and "data cleaning"?
Q. What is the primary focus of "data ethics" in a data science capstone project?
Q. Why is it important to maintain a "version control system" for a data science capstone project?
Q. What is the role of "stakeholder communication" in a data science capstone project?
Q. In a data science capstone project, what is the purpose of "cross-validation"?
Q. What is the primary focus of "deployment monitoring" in a data science capstone project?
Q. What is the role of "documentation" in a data science capstone project?
Q. In a data science capstone project, why is it essential to maintain a "model performance dashboard"?
Q. What is the significance of "deployment testing" in a data science capstone project?
Q. What is the role of "model explainability" in a data science capstone project?
Q. Why is it important to consider "ethics" and "bias" when working on a data science capstone project?
Q. What is the primary purpose of "feature selection" in a data science capstone project?
Q. What is the primary goal of "stakeholder engagement" in a data science capstone project?
Q. What is the primary purpose of "A/B testing" or "split testing" in a data science capstone project?
Q. In a data science capstone project, what is the purpose of "scrum" or "agile" methodologies?
Q. What is the primary goal of "knowledge transfer" in a data science capstone project?
Q. Why is "communication" considered a critical skill in a data science capstone project?
Q. What is the purpose of a "post-mortem analysis" in the context of a data science capstone project?
Q. What is the role of "deployment infrastructure" in a data science capstone project?
Q. What is the primary objective of "data governance" in a data science capstone project?
Q. In a data science capstone project, why is "model deployment" often considered a challenging phase?
Q. In a data science capstone project, what is the purpose of "data lineage" or "data provenance"?
Q. In data visualization, what does "annotation" refer to?
Q. What is the primary advantage of using interactive data visualizations?
Q. What is the purpose of a "legend" in a data visualization?
Q. What does the term "chartjunk" refer to in data visualization?
Q. What is the primary purpose of data visualization in data science?
Q. What is the primary purpose of a "tooltip" in an interactive data visualization?
Q. In a line chart, what does the x-axis typically represent?
Q. Which type of chart is commonly used to represent hierarchical data with rectangular blocks?
Q. What is the primary goal of storytelling in data visualization?
Q. In data visualization, what does "data-ink ratio" refer to?
Q. What is the primary purpose of a "title" in a data visualization?
Q. In a data visualization, what does the "y-axis" typically represent?
Q. What is the primary goal of "data storytelling" in data visualization?
Q. What is the primary benefit of using "dashboards" in data reporting?
Q. In data visualization, what does "color encoding" involve?
Q. What does "data granularity" refer to in data visualization and reporting?
Q. What is the purpose of "drill-down" functionality in interactive data visualizations?
Q. In a data visualization, what does "axis scaling" refer to?
Q. In a data visualization, what does "data filtering" allow users to do?
Q. What is the primary benefit of using "interactive tooltips" in data visualizations?
Q. In data visualization, what does "data aggregation" involve?
Q. What is the primary purpose of "data exploration" in data visualization?
Q. In a data visualization, what does "color saturation" refer to?
Q. What is the primary purpose of "data labels" in a data visualization?
Q. What is the primary benefit of using a "word cloud" in data visualization?
Q. What does "categorical data" represent in data visualization?
Q. What type of chart is often used to visualize the frequency distribution of a categorical variable?
Q. In data visualization, what does "geospatial data" refer to?
Q. What is the primary purpose of a "choropleth map" in data visualization?
Q. What does "data storytelling" aim to achieve in data visualization and reporting?
Q. What is the primary purpose of "data exploration" in data visualization?
Q. In a data visualization, what does "data interpolation" involve?
Q. What is the primary goal of "data annotation" in data visualization?
Q. In data visualization, what does "data compression" refer to?
Q. What is the primary purpose of "data validation" in data visualization and reporting?
Q. What does the "Pareto principle" state in the context of data visualization?
Q. What is the main advantage of using "parallel coordinates" for visualizing multidimensional data?
Q. In data visualization, what does "data transformation" involve?
Q. What is the primary goal of "data mining" in data visualization and reporting?
Q. What is the primary purpose of "exploratory data analysis (EDA)" in data visualization?
Q. What is the primary function of "Pandas" library in Python for data science?
Q. Which machine learning framework is widely used for developing deep learning models in data science?
Q. What does "EDA" stand for in the context of data science?
Q. What is the primary purpose of "NumPy" in data science?
Q. What does "SQL" stand for in the context of data science?
Q. Which programming language is commonly used for data analysis and visualization in data science?
Q. What is the primary function of "Seaborn" library in Python for data science?
Q. What is the primary role of "Matplotlib" in data science?
Q. What is the primary role of "Scikit-learn" in data science?
Q. What is the primary use of "Jupyter Notebook" in data science?
Q. What is the purpose of "Docker" in data science environments?
Q. What is the primary function of "Plotly" library in Python for data science?
Q. What is the primary purpose of "Conda" in data science environments?
Q. What is the primary role of "RStudio" in data science environments?
Q. What is the primary purpose of "Bokeh" library in Python for data science?
Q. What is the primary use of "Anaconda" in data science environments?
Q. What is the main purpose of "Apache Cassandra" in data science environments?
Q. Which programming language is commonly used for web scraping and automation in data science?
Q. What is the primary use of "Altair" in Python for data science?
Q. What is the primary role of "RapidMiner" in data science?
Q. What is the primary purpose of "Hive" in the Hadoop ecosystem for data science?
Q. What is the primary role of "Dask" in data science?
Q. What is the main purpose of "Databricks" in data science environments?
Q. What is the primary role of "H2O.ai" in data science?
Q. Which data visualization library in Python is known for its simplicity and declarative syntax?
Q. What is the primary use of "Kibana" in the context of data science and analytics?
Q. What is the primary purpose of "Tableau" in data science?
Q. What is the primary role of "DataRobot" in data science?
Q. Which database management system is commonly used for graph data in data science applications?
Q. What is the primary function of "Folium" library in Python for data science?
Q. What is the primary use of "MLflow" in the context of machine learning in data science?
Q. What is the main role of "Alteryx" in data science?
Q. Which Python library is commonly used for geospatial data manipulation and analysis in data science?
Q. What is the primary purpose of "Looker" in data science environments?
Q. What is the primary role of "Orange" in data science?
Q. What is the primary function of "Power BI" in data science?
Q. Which data preprocessing library in Python is commonly used for handling missing data and outliers?
Q. In the context of business analytics, what is the main goal of "data preprocessing"?
Q. What is the primary purpose of "data warehousing" in business analytics?
Q. In business analytics, what does the term "churn rate" represent?
Q. What is the primary objective of "data-driven decision-making" in business?
Q. What is the primary goal of "A/B testing" in business analytics?
Q. What is the main purpose of "customer segmentation" in data science for business?
Q. In the context of business, what does the term "predictive modeling" refer to?
Q. What is the primary goal of using data science in business analytics?
Q. In data science for business, what does "data warehousing" involve?
Q. What is the main purpose of "data extraction" in business analytics?
Q. In business analytics, what does the term "data silo" refer to?
Q. What is the primary purpose of "data integration" in business analytics?
Q. In data science, what is the primary goal of "sales forecasting" in business analytics?
Q. What does the term "KPI" stand for in the context of business analytics?
Q. In business analytics, what is the primary purpose of "data governance"?
Q. What is the primary focus of "A/B testing" in business analytics?
Q. In data science for business, what does "data cleansing" involve?
Q. What is the primary objective of "data storytelling" in business data science?
Q. In business analytics, what is the primary purpose of "market research analysis"?
Q. What is the primary objective of "customer profiling" in business analytics?
Q. In business analytics, what is the primary purpose of "data transformation"?
Q. What is the main goal of "cohort analysis" in business analytics?
Q. In data science for business, what is the primary focus of "data exploration"?
Q. What is the main focus of "customer journey mapping" in business analytics?
Q. What is the primary goal of "data-driven decision-making" in business analytics?
Q. What is the main purpose of "data exploration" in business analytics?
Q. In data science for business, what is the primary focus of "cross-selling analysis"?
Q. In business analytics, what does "RFM analysis" typically refer to?
Q. In business analytics, what is the primary goal of "data summarization"?
Q. What is the main focus of "customer journey mapping" in business analytics?
Q. In data science for business, what does "data enrichment" involve?
Q. What is the primary objective of "cluster analysis" in business data science?
Q. In business analytics, what is the primary goal of "predictive maintenance"?
Q. What is the main purpose of "market segmentation" in data science for business?
Q. In data science, what is "data visualization" used for in business analytics?
Q. What is the primary goal of "customer churn prediction" in business analytics?
Q. What is the primary focus of "text analytics" in business data science?
Q. In data science for business, what is the primary goal of "time series forecasting"?
Q. What does the acronym "ROI" stand for in the context of business analytics?
Q. In business analytics, what does the term "data integration" refer to?
Q. What is the primary focus of "market basket analysis" in business data science?
Q. What does the acronym "BI" stand for in the context of business analytics?
Q. In business analytics, what is the primary purpose of "data cleaning"?
Q. What is the primary goal of "forecasting" in business analytics?
Q. What is the main purpose of "data classification" in business analytics?
Q. In business analytics, what is the primary objective of "data preprocessing"?
Q. What is the primary goal of "customer lifetime value (CLV) analysis" in business analytics?
Q. In data science for business, what is the primary focus of "regression analysis"?
Q. What is the main purpose of "data-driven decision-making" in business analytics?
Q. In business analytics, what is the primary goal of "market basket analysis"?
Q. In data science for business, what is the primary focus of "cross-selling analysis"?
Q. What is the primary objective of "data democratization" in business data science?
Q. In business analytics, what does "RFM analysis" typically refer to?
Q. What is the main goal of "data governance" in business analytics?
Q. What is the primary purpose of "churn prediction" in business analytics?
Q. What is the primary objective of "data-driven decision-making" in business analytics?
Q. In business analytics, what is the primary goal of "market segmentation"?
Q. What is the main purpose of "customer profiling" in business analytics?
Q. In data science for business, what does "data aggregation" involve?
Q. What is the primary goal of "marketing analytics" in business data science?
Q. In business analytics, what does "BI" stand for in the context of business analytics?
Q. In data science for business, what is the primary goal of "data sampling"?
Q. What is the primary objective of "data monetization" in business data science?
Q. In business analytics, what is the primary goal of "supply chain optimization"?
Q. What is the main purpose of "data exploration" in business analytics?
Q. What does the concept of "data ownership" entail in data ethics?
Q. What is the main purpose of a "data protection impact assessment" (DPIA) in data ethics and privacy?
Q. In data ethics, what is the primary concern related to "data bias"?
Q. What does the acronym "PII" stand for in data ethics and privacy?
Q. What is the main concern addressed by GDPR (General Data Protection Regulation) in data privacy?
Q. In data science, what is "informed consent" with regard to data collection?
Q. What is the primary goal of data anonymization in data ethics?
Q. What does the term "data privacy" refer to in the context of data science?
Q. What is the primary purpose of "data encryption" in data ethics and privacy?
Q. In data science, what does "consent withdrawal" mean in the context of data collection?
Q. What is the primary objective of "data anonymization" in data ethics and privacy?
Q. What does "de-identification" refer to in data privacy and ethics?
Q. In data ethics and privacy, what does "data minimization" mean?
Q. What is the primary purpose of a "privacy policy" in data science and data ethics?
Q. What does "data sovereignty" refer to in data ethics?
Q. What is the main purpose of "data classification" in data ethics and privacy?
Q. In data ethics and privacy, what is the primary goal of "data audit trails"?
Q. In data ethics, what does "data sovereignty" refer to?
Q. What is the primary purpose of "data governance" in data ethics and privacy?
Q. In data ethics, what is the primary concern related to "data retention"?
Q. What does the term "data masking" mean in data ethics and privacy?
Q. What is the main objective of "data compartmentalization" in data ethics and privacy?
Q. In data ethics and privacy, what is the primary purpose of "data minimization"?
Q. What is the primary goal of "data obfuscation" in data ethics and privacy?
Q. What is the primary objective of "data pseudonymization" in data ethics and privacy?
Q. In data science, what is "data portability"?
Q. What is the primary purpose of "data classification" in data ethics and privacy?
Q. In data ethics, what does "data provenance" refer to?
Q. What is the main purpose of "data erasure" (the right to be forgotten) in data ethics and privacy?
Q. What is the primary concern addressed by CCPA (California Consumer Privacy Act) in data privacy?
Q. What is the primary goal of "data segregation" in data ethics and privacy?
Q. In data ethics, what is the main objective of "data redaction"?
Q. What does "data stewardship" entail in data ethics and privacy?
Q. What is the primary objective of "data audit trails" in data ethics and privacy?
Q. In data ethics, what is the main purpose of a "data ethics committee"?
Q. In time series analysis, what does the "autocorrelation function" (ACF) measure?
Q. What is the primary goal of "lag plots" in time series analysis?
Q. Which of the following is NOT a common method for measuring the similarity between time series data?
Q. In time series analysis, what is the purpose of "smoothing" methods such as exponential smoothing?
Q. What is the primary goal of "detrending" in time series analysis?
Q. What is the primary characteristic of a time series data set?
Q. What is the primary purpose of "seasonal decomposition" in time series analysis?
Q. In time series analysis, what does the acronym "MA" stand for in an ARIMA model?
Q. What is the primary goal of the "Holt-Winters method" in time series forecasting?
Q. Which statistical method is used to determine the order of differencing in an ARIMA model?
Q. What is the primary purpose of the "Granger causality test" in time series analysis?
Q. In time series analysis, what does the term "exponential smoothing" refer to?
Q. What is the primary goal of the "Ljung-Box test" in time series analysis?
Q. What does the "autoregressive" (AR) component in an ARIMA model represent?
Q. In time series analysis, what is the primary purpose of "Granger causality testing"?
Q. In time series analysis, what is the purpose of "residual autocorrelation plots"?
Q. What is the primary goal of "exponential smoothing" in time series analysis?
Q. What is the primary objective of "seasonal differencing" in time series analysis?
Q. In time series analysis, what does "stationarity" refer to?
Q. In time series analysis, what is the purpose of "rolling forecasting origin"?
Q. What is the primary objective of "heteroscedasticity testing" in time series analysis?
Q. In time series analysis, what is the primary goal of "bootstrap resampling"?
Q. In time series analysis, what does the term "multicollinearity" refer to?
Q. What is the primary purpose of "forecasting horizon" in time series forecasting?
Q. In time series analysis, what is the primary goal of "seasonal decomposition of time series" (STL)?
Q. In the context of time series analysis, what is the "Box-Cox transformation" used for?
Q. What is the primary goal of "seasonal differencing" in time series analysis?
Q. In time series analysis, what is the "autoregressive" (AR) order in an ARIMA model?
Q. What is the primary purpose of "lagging" in time series analysis?
Q. What is the primary objective of "forecasting" in time series analysis?
Q. Which statistical method is commonly used to test the stationarity of a time series data set?
Q. What is the primary goal of "differencing" in time series analysis?
Q. What is the primary goal of "exogeneity testing" in time series analysis?
Q. In time series analysis, what is the primary objective of "residual analysis"?
Q. What is the purpose of the "Dickey-Fuller test" in time series analysis?
Q. What is the primary goal of "cross-correlation analysis" in time series analysis?
Q. Which statistical test is commonly used to assess the presence of seasonality in time series data?
Q. What is the primary purpose of "Box-Cox transformation" in time series analysis?
Q. In time series analysis, what is the primary goal of "forecast error decomposition"?
Q. In time series analysis, what does the term "overfitting" refer to?
Q. What is the primary purpose of "cross-validation" in the context of time series forecasting?
Q. In time series analysis, what is the primary goal of "white noise testing"?
Q. What does the term "holt-winters" refer to in time series analysis?
Q. In time series analysis, what is the primary purpose of "forecast error variance decomposition"?
Q. What is the primary purpose of "out-of-sample testing" in time series forecasting?
Q. In time series analysis, what is the primary objective of "stationarizing" the data?
Q. What is the purpose of "tokenization" in NLP?
Q. What is the primary goal of Sentiment Analysis in NLP?
Q. What is the primary purpose of Named Entity Recognition (NER) in NLP?
Q. In the context of NLP, what does the acronym "POS" stand for?
Q. What is the primary goal of Natural Language Processing (NLP)?
Q. What is the primary goal of Document Summarization in NLP?
Q. In NLP, what does "TF-IDF" stand for?
Q. What is the primary use of a "corpus" in Natural Language Processing (NLP)?
Q. In the context of NLP, what does the acronym "NER" stand for?
Q. What is the purpose of "lemmatization" in NLP?
Q. What is the primary goal of Machine Translation in NLP?
Q. What is the primary goal of a "language model" in NLP?
Q. In NLP, what is the purpose of a "stemmer"?
Q. What is the primary goal of Text Mining in NLP?
Q. What is the primary purpose of Named Entity Recognition (NER) in NLP?
Q. What is the primary goal of Information Retrieval in NLP?
Q. In NLP, what is the purpose of "stopwords"?
Q. What is the primary goal of "Document Classification" in NLP?
Q. In NLP, what does the term "syntax" refer to?
Q. What is the primary goal of "Topic Modeling" in NLP?
Q. In NLP, what does the term "named entity" typically refer to?
Q. Which NLP task involves determining the language in which a text document is written?
Q. What is the primary use of "stemming" in NLP?
Q. In the context of NLP, what does the term "lemmatization" aim to achieve?
Q. What is the primary goal of "question-answering systems" in NLP?
Q. In NLP, what does the term "bag of words" (BoW) refer to?
Q. What is the primary objective of "text summarization" in Natural Language Processing (NLP)?
Q. In NLP, what does the term "part-of-speech" (POS) refer to?
Q. What is the primary use of a "syntax tree" in NLP?
Q. In NLP, what is the purpose of "named entity recognition" (NER)?
Q. In NLP, what is the purpose of "syntax parsing"?
Q. What is the primary use of "word embeddings" in NLP?
Q. In NLP, what does the term "semantic analysis" refer to?
Q. What is the primary goal of "sentiment analysis" in NLP?
Q. What is the primary purpose of "named entity recognition" (NER) in NLP?
Q. In NLP, what does the acronym "NLG" stand for?
Q. What is the main goal of data partitioning in distributed computing?
Q. What is the main purpose of the Hadoop Distributed File System (HDFS) in a Hadoop ecosystem?
Q. In the context of big data, what does the "3Vs" represent?
Q. What is the primary characteristic of "big data"?
Q. What is the primary benefit of using a data warehouse in big data analytics?
Q. What does the term "data locality" refer to in the context of Hadoop and distributed computing?
Q. What is the primary role of a "Data Node" in the Hadoop Distributed File System (HDFS)?
Q. In distributed computing, what does the term "MapReduce" refer to?
Q. What is the primary challenge in managing and analyzing unstructured data in big data environments?
Q. What is the primary purpose of a "Mapper" in the MapReduce programming model?
Q. In big data analytics, what is the primary challenge associated with "data silos"?
Q. What is the primary role of a "Name Node" in the Hadoop Distributed File System (HDFS)?
Q. In the context of big data processing, what does the term "ETL" stand for?
Q. What is the primary goal of shuffling and sorting in the MapReduce programming model?
Q. In distributed computing, what is the purpose of a "Reducer" in the MapReduce programming model?
Q. What is the primary advantage of using Apache Kafka in a big data architecture?
Q. What does the term "YARN" stand for in the context of Hadoop and distributed computing?
Q. What is the primary purpose of "data replication" in a distributed computing environment?
Q. In the context of big data, what is the purpose of "data sampling"?
Q. What is the primary benefit of using a columnar storage format like Parquet in big data analytics?
Q. In the context of big data, what does the term "data skew" refer to?
Q. What does the term "batch processing" typically refer to in the context of big data analytics?
Q. In a distributed computing environment, what is the purpose of "data partitioning" or "sharding"?
Q. In the context of big data analytics, what is the primary goal of "data enrichment"?
Q. What is the primary purpose of "data cleansing" in big data preprocessing?
Q. What is the main advantage of using a "NoSQL" database in big data applications?
Q. In big data analytics, what is the primary challenge associated with "data veracity"?
Q. What is the primary role of a "Data Scientist" in the context of big data analytics?
Q. What is the main purpose of a "Combiner" in the Hadoop MapReduce programming model?
Q. In big data analytics, what does the term "data transformation" involve?
Q. What is the primary goal of "data deduplication" in big data storage and processing?
Q. What does the term "data lineage" refer to in the context of big data analytics?
Q. In big data analytics, what is the primary goal of "data imputation"?
Q. What is the primary advantage of using a distributed file system like HDFS in big data environments?
Q. In the context of big data storage, what does the term "data replication" involve?
Q. In the context of big data, what does the term "data ingestion" refer to?
Q. What is the primary advantage of using data lakes in big data architectures?
Q. What is the primary advantage of using stratified sampling in model evaluation?
Q. In model evaluation, what is the primary goal of feature scaling or normalization?
Q. What does the term "overfitting" refer to in the context of model evaluation and validation?
Q. What is the purpose of the Receiver Operating Characteristic (ROC) curve in model evaluation?
Q. What is the primary purpose of a validation dataset in machine learning?
Q. What is the primary purpose of a learning rate in training machine learning models?
Q. What is the primary goal of a learning rate schedule in training machine learning models?
Q. What is the primary purpose of a learning rate decay in training deep neural networks?
Q. What does the term "underfitting" refer to in the context of model evaluation and validation?
Q. In model evaluation, what is the primary purpose of a learning curve?
Q. What is the primary purpose of a confusion matrix in model evaluation?
Q. What does the term "bias" refer to in model evaluation and validation?
Q. What is the primary purpose of early stopping in training deep neural networks?
Q. What is the primary purpose of a learning rate scheduler in training deep neural networks?
Q. In model evaluation, what is the primary goal of cross-entropy loss or log loss?
Q. What does the term "grid search" refer to in model evaluation and validation?
Q. What is the primary purpose of a validation curve in model evaluation?
Q. In machine learning, what is the primary advantage of an ensemble method like Random Forest?
Q. What is the primary goal of a support vector machine (SVM) algorithm in machine learning?
Q. In machine learning, what does the term "bias" refer to when evaluating a model's performance?
Q. What is the primary goal of a decision tree algorithm in machine learning?
Q. In machine learning, what does the term "overfitting" refer to?
Q. What is the primary purpose of a Long Short-Term Memory (LSTM) network in machine learning?
Q. Which machine learning algorithm is commonly used for time series forecasting and trend analysis?
Q. What is the primary goal of clustering algorithms like K-Means?
Q. What is the primary purpose of a naive Bayes classifier in machine learning?
Q. What is the primary goal of a recurrent neural network (RNN) in machine learning?
Q. Model based prediction considers relatively easy version for covariance matrix.
Q. Which of the following is used to assist the quantitative trader in the development?
Q. Which of the following library is used for boosting generalized additive models?
Q. Which of the following can be used to create the most common graph types?
Q. What is the primary purpose of a k-means clustering algorithm in machine learning?
Q. What is the primary purpose of a convolutional neural network (CNN) in machine learning?
Q. In machine learning, what is the primary objective of a genetic algorithm?
Q. Which of the following expression is true?
Q. For k cross-validation, larger k value implies more bias.
Q. caret stands for classification and regression training.
Q. Which of the following function can be used to create balanced splits of the data?
Q. Which of the following method options is provided by train function for bagging?
Q. The principal components are equal to left singular values if you first scale the variables.
Q. For k cross-validation, smaller k value implies less variance.
Q. Which of the following is correct with respect to random forest?
Q. Which of the following curve analysis is conducted on each predictor for classification?
Q. Which of the following is correct order of working?
Q. The advantage of using a model-based approach is that is more closely tied to the model performance.
Q. Point out the wrong statement.
Q. Point out the wrong statement.
Q. Which of the following trade-off occurs during prediction?
Q. Which of the following is the valid component of the predictor?
Q. Which of the following function is a wrapper for different lattice plots to visualize the data?
Q. Which of the following function can be used to maximize the minimum dissimilarities?
Q. Backtesting is a key component of effective trading-system development.
Q. Which of the following function tracks the changes in model statistics?
Q. Point out the wrong statement.
Q. What is the primary goal of gradient boosting algorithms in machine learning?
Q. What is the primary goal of a neural network in machine learning?
Q. What is the primary purpose of a k-nearest neighbors (KNN) algorithm in machine learning?
Q. What is the primary purpose of a Markov Chain Monte Carlo (MCMC) algorithm in machine learning?
Q. In machine learning, what does the term "hyperparameter" refer to?
Q. What is the primary goal of reinforcement learning algorithms in machine learning?
Q. In machine learning, what is the primary purpose of cross-validation?
Q. Which of the following argument is used to set importance values?
Q. Which of the following package tools are present in caret?
Q. Which of the following is a common error measure?
Q. True positive means correctly rejected.
Q. Which of the following is statistical boosting based on additive logistic regression?
Q. Which of the following is correct use of cross validation?
Q. Point out the wrong combination.
Q. Which of the following is characteristic of best machine learning method?
Q. Which of the following function is used to generate the class distances?
Q. Point out the wrong statement.
Q. Point out the correct statement.
Q. Which of the following is a categorical outcome?
Q. Point out the correct statement.
Q. Point out the wrong statement.
Q. Which of the following is one of the largest boost subclass in boosting?
Q. Predictive analytics is same as forecasting.
Q. Which of the following is not a machine learning algorithm?
Q. Point out the correct statement.
Q. Which of the following function can be used to flag predictors for removal?
Q. Which of the following methods are present in caret for regularized regression?
Q. Which of the following method is used for trainControl resampling?
Q. varImp is a wrapper around the evimp function in the . . . . . . . . package.
Q. caret does not use the proxy package.
Q. Which of the following shows correct relative order of importance?
Q. Point out the wrong statement.
Q. Point out the correct statement.
Q. Which of the following function can be used for forecasting?
Q. Predicting with trees evaluate . . . . . . . . within each group of data.
Q. What is the primary purpose of an Entity-Relationship Diagram (ERD) in data modeling?
Q. What is the purpose of a Data Flow Diagram (DFD) in data modeling?
Q. What is the process of transforming raw data into a structured format suitable for analysis called?
Q. What is the primary goal of data modeling in the context of data science?
Q. What is the primary goal of regression analysis in data modeling?
Q. What is the primary purpose of a Bayesian Network in data modeling?
Q. What is the primary goal of dimensionality reduction techniques in data modeling?
Q. What is the primary purpose of a data cube in data modeling?
Q. What is the primary purpose of a data schema in data modeling?
Q. What is the primary purpose of a data pipeline in data modeling?
Q. What is the primary goal of clustering in data modeling?
Q. What is the primary purpose of a decision tree model in data modeling?
Q. What is the primary purpose of a Data Dictionary in data modeling?
Q. What is the primary objective of feature selection in data modeling?
Q. What is the primary goal of ensemble modeling techniques in data modeling?
Q. What is the primary purpose of a data mart in data modeling?
Q. What is the primary goal of time series modeling in data modeling?
Q. What is the primary purpose of a data warehouse in data modeling?
Q. What does the term "outlier" refer to in the context of EDA?
Q. What is the purpose of a correlation matrix in EDA?
Q. Which EDA technique is used to identify and visualize outliers in a dataset?
Q. What is the primary purpose of a scatter plot in EDA?
Q. Which of the following is NOT a common EDA technique for visualizing data distributions?
Q. What is the primary purpose of Exploratory Data Analysis (EDA) in Data Science?
Q. In EDA, what is the primary purpose of a heat map?
Q. What does the term "kurtosis" refer to in the context of data distribution analysis in EDA?
Q. In EDA, what does the term "box" represent in a box plot?
Q. Which EDA technique is used to visualize the distribution of a single continuous variable?
Q. What is the primary purpose of a bar chart in EDA?
Q. What is the primary goal of a density plot in EDA?
Q. What does the term "skewness" refer to in the context of data distribution analysis in EDA?
Q. In EDA, what is the purpose of a Q-Q plot (Quantile-Quantile plot)?
Q. What is the primary purpose of a density plot in EDA?
Q. In EDA, what is the primary purpose of a pie chart?
Q. What does the term "scatter matrix" refer to in the context of EDA?
Q. In EDA, what does the term "correlation" refer to?
Q. What is the primary purpose of a violin plot in EDA?
Q. What is the primary goal of a pair plot (scatter plot matrix) in EDA?
Q. Which EDA technique is used to visualize the distribution of a single categorical variable?
Q. What is the primary goal of a bar plot (bar chart) in EDA?
Q. What is the primary purpose of a swarm plot in EDA?
Q. In EDA, what is the primary purpose of a line plot (time series plot)?
Q. What does the term "mode" refer to in the context of data distribution analysis in EDA?
Q. In EDA, what is the primary purpose of a histogram?
Q. What is the primary purpose of a contour plot in EDA?
Q. In EDA, what does the term "skewness" refer to?
Q. What is the primary purpose of a pair plot in EDA?
Q. What does the acronym "API" stand for in the context of data collection and retrieval?
Q. What is the process of cleaning and formatting raw data into a usable format called?
Q. Which of the following is NOT a common source of data for data collection in Data Science?
Q. What is the process of gathering data from various sources and storing it for analysis known as?
Q. Which of the following is a common technique for handling outliers in a dataset?
Q. In data preprocessing, what is the purpose of data scaling or normalization?
Q. Which of the following is NOT a common step in data preprocessing?
Q. What is the process of transforming categorical data into numerical values called?
Q. What is the primary goal of data preprocessing in the context of machine learning?
Q. Which of the following is NOT a common data preprocessing technique?
Q. What is the primary goal of data preprocessing in the context of machine learning?
Q. Which data preprocessing step involves checking for and handling duplicate records in a dataset?
Q. What is the term for data that is collected from a single source at a specific point in time?
Q. What is the purpose of data sampling in data collection?
Q. What does the acronym "ETL" stand for in the context of data preprocessing and integration?
Q. Which of the following function is used for searching text strings by means of regular expression?
Q. Which of the following package is used for tidy data?
Q. Which of the following function is used for loading flat files?
Q. Which of the following package is used for reading HTML and XML data?
Q. Which of the following request can be issued from httr package?
Q. What is the purpose of feature engineering in data preprocessing?
Q. Which of the following is NOT a common data preprocessing technique?
Q. Each observation forms a column in tidy data.
Q. Which type of data is generated by POS terminal in a busy supermarket each day?
Q. Which of the following function is good for the automatic splitting of names?
Q. Which of the following package is used to connect MySQL RDBMS with R?
Q. Which of the following signs are used to indicate repetition?
Q. Which of the following function programmatically extract parts of XML file?
Q. Which of the following function is used for fixing character vectors?
Q. Point out the correct statement.
Q. Which of the following function is used to read data off the webpages?
Q. Point out the wrong statement.
Q. Which of the following is used for specifying character class with metacharacter?
Q. mutate function is used for casting as multi dimensional arrays.
Q. Which of the following data is put into a formula to produce commonly accepted results?
Q. httr package does not work well with facebook and twitter API.
Q. Which of the following block information is odd man out?
Q. Point out the correct statement.
Q. Strange binary file generated from machines is an example of tidy data.
Q. tidyr is a reframing of . . . . . . . . designed to accompany the tidy data framework.
Q. Point out the correct statement.
Q. Following figure represents correct sequence of steps in performing data analysis.
Q. Which of the following is the most common problem with messy data?
Q. Point out the correct statement.
Q. Point out the wrong statement.
Q. Which of the following can be used to view all the tables in memory?
Q. Which of the following package is used for reading GIS data?
Q. Which of the following is an example of raw data?
Q. Point out the correct statement.
Q. Data that summarize all observations in a category are called . . . . . . . . data.
Q. Which of the following is an important parameter of read.table function?
Q. Which of the following function gives information about top level data?
Q. Point out the correct statement.
Q. Processing data includes subsetting, formatting and merging only.
Q. Point out the wrong statement.
Q. Which of the following is a trait of tidy data?
Q. Which of the following function is used for determining missing values?
Q. Which of the following metacharacter is used to refer to any character?
Q. Which of the following is another name for raw data?
Q. Which of the following package is used for reading JSON data?
Q. Which of the following join is by default used in plyr package?
Q. Extracting XML is the basis for most web scraping.
Q. Which of the following function is used for casting data frames?
Q. Which of the following function is used for quantiles of quantitative values?
Q. merge function is used for merging data frames.
Q. Point out the correct statement.
Q. Which of the following process involves structuring datasets to facilitate analysis?
Q. In Data Science, what is the term for a dataset that contains both input features and output labels?
Q. Which of the following is NOT a key skill required for a Data Scientist?
Q. What does the acronym "EDA" stand for in Data Science?
Q. Which technology is often used to process and analyze large-scale data sets in Data Science?
Q. Which of the following is NOT a type of machine learning algorithm commonly used in Data Science?
Q. What is the term for a data point that falls far from the rest of the data in a dataset?
Q. Which step in the Data Science process involves understanding and preparing the data for analysis?
Q. Which programming language is commonly used for Data Science tasks?
Q. What is the primary goal of Data Science?
Q. Which of the following is NOT a common data visualization tool or library used in Data Science?
Q. Which of the following is NOT a key role in a typical Data Science team?
Q. What type of data analysis focuses on understanding the relationships and patterns within a dataset?
Q. Which step in the Data Science process involves assessing the quality of collected data?
Q. In Data Science, what is the primary purpose of data visualization?
Q. Which library in Python is commonly used for data manipulation and analysis in Data Science?
Q. Which of the following data mining technique is used to uncover patterns in data?
Q. Which of the following analysis is usually modeled by deterministic set of equations?
Q. 3V's are not sufficient to describe big data.
Q. Which of the following command is used to squash the commits?
Q. Which of the following is NOT typically considered a part of the Data Science process?
Q. What is the primary objective of exploratory data analysis (EDA) in Data Science?
Q. What is the primary role of a Data Scientist in a business context?
Q. Which of the following is a common method for dealing with missing data in a dataset?
Q. Point out the correct statement.
Q. Which of the following web hosting service use Git control system?
Q. Which of the following CLI command can also be used to rename files?
Q. Which of the following command updates tracking for files that are modified?
Q. Standard normal RVs are always labelled as Z.
Q. Which of the following model is usually a gold standard for data analysis?
Q. Point out the correct statement.
Q. Which of the following is performed by Data Scientist?
Q. Which of the following command help us to give message description?
Q. Which of the following is one of the key data science skills?
Q. Which of the following systems record changes to a file over time?
Q. Point out the correct statement.
Q. Which of the following allows you to find the relationship you didn't about?
Q. Which of the following analysis helps out to find the effect of variable change?
Q. Which of the following step is performed by data scientist after acquiring the data?
Q. Which of the following is not a CLI command?
Q. Point out the wrong statement.
Q. Which of the following uses data on some object to predict values for other object?
Q. Point out the correct statement.
Q. Which of the following uses relatively small amount of data to estimate about bigger population?
Q. Which of the following analytical capabilities are provided by information management company?
Q. Which of the following is the common goal of statistical modelling?
Q. Which of the following characteristic of big data is relatively more concerned to data science?
Q. Which of the following is the top most important thing in data science?
Q. Point out the correct statement.
Q. Which of the following is a good way of performing experiments in data science?
Q. Which of the following technique comes under practical machine learning?
Q. Point out the wrong statement.
Q. Which of the following principle is incorrectly represented in the below figure?
Q. Which of the following principle characteristic is odd man out in the below figure?
Q. Which of the following type of data science question is missing in the figure?
Q. Which of the following is an example of an unsupervised learning algorithm used in clustering data?
Q. In Data Science, what is the purpose of feature engineering?
Q. What is the process of extracting patterns and information from data called?
Q. Which step in the Data Science process involves building and training predictive models?
Q. What is the primary purpose of data visualization in Data Science?
Q. Which of the following is a technique used to handle missing data in a dataset?
Q. Which of the following is NOT a common data format used in Data Science projects?
Q. What is the primary focus of Data Science?
Q. What does the acronym "SQL" stand for in the context of Data Science?
Q. Which of the following is a common algorithm used for classification in supervised learning?
Q. In Data Science, what is the purpose of data wrangling?
Q. Which type of data is represented by categories or labels and cannot be measured numerically?
Q. What is the primary objective of data exploration in Data Science?
Q. In Data Science, what is the term for a data point that is missing a value for one or more features?
Q. Which statistical measure represents the spread or dispersion of data values in a dataset?
Q. Which of the following best describes the purpose of data sampling in Data Science?
Q. What is the term for the process of removing or reducing noise and inconsistencies from data?
Q. Point out the wrong statement.
Q. Which of the following command line environment is used for interacting with Git?
Q. Which of the following statement would create branch named as 'sanfoundry'?
Q. Point out the wrong statement.
Q. Beyond Volume, variety and velocity are the issues of big data veracity.
Q. Raw data should be processed only one time.
Q. Which of the following is a key characteristic of a hacker?
Q. Which of the following approach should be used to ask Data Analysis question?
Q. Which of the following technique is also referred to as Bagging?
Q. Point out the correct statement.
Q. Which of the following approach should be used if you can't fix the variable?
Q. Which of the following focuses on the discovery of (previously) unknown properties on the data?
Q. Which of the following analysis are incredibly hard to infer?
Q. Point out the wrong statement.
Q. Which of the following command allows you to update the repository?
Q. branch command is used to determine which branch you are currently in.
Q. Which of the following is not a step in data analysis?
Q. Which of the following is characteristic of Raw Data?
Q. Point out the correct statement.
Q. Which of the following is characteristic of Processed Data?
Q. Which of the following is a revision control system?
Q. Point out the correct statement.
Q. Which of the following is the correct way of creating GitHub repository in to well labelled commits?
Q. Which of the following term is appropriate to the below figure?
Q. Which of the following language should be replaced with the question mark in the below figure?
Q. Which of the following analysis should come in place of question mark in the below figure?
Q. Which of the following design term is perfectly applicable to the below figure?
Q. Data Products shown in the below figure is built using which programming language?
Q. Which of the following is commonly referred to as 'data fishing'?
Q. Which of the following is the most important language for Data Science?
Q. Which of the following adds all new files to local repository?
Q. Point out the correct statement.
Q. What does the term "monkey patching" refer to in Ruby?
Q. What is the purpose of the instance_eval method in Ruby?
Q. What is memoization in Ruby?
Q. Which Ruby method is commonly used for dynamically defining new methods on an object?
Q. What does the term "duck typing" refer to in Ruby?
Q. What is a singleton class in Ruby?
Q. What is the purpose of the method_missing method in Ruby?
Q. Which Ruby module provides reflection capabilities for classes, modules, and objects?
Q. What is metaprogramming in Ruby?
Q. Which Ruby module is commonly used for memoization?
Q. What does the term "currying" refer to in Ruby?
Q. What is an anonymous function in Ruby called?
Q. What is the main difference between a lambda and a Proc in Ruby?
Q. What is the purpose of the yield keyword in Ruby?
Q. What does the term "lexical scope" refer to in Ruby?
Q. What is the purpose of the include keyword in Ruby?
Q. What is an eigenclass in Ruby?
Q. What is the purpose of the method_defined? method in Ruby's Module class?
Q. Which keyword is used to define a module in Ruby?
Q. What is the purpose of the __dir__ method in Ruby?
Q. Which method is commonly used for dynamically defining attribute accessors in Ruby?
Q. What is the purpose of the binding method in Ruby?
Q. What does the term "method chaining" refer to in Ruby?
Q. What is the purpose of the trace_var method in Ruby?
Q. Which Ruby method is commonly used for converting a block to a Proc object?
Q. What is the purpose of using the method_missing method in Ruby?
Q. What does the __FILE__ constant represent in Ruby?
Q. What does the respond_to_missing? method do in Ruby?
Q. Which method is used to convert a hash into an array of key-value pairs in Ruby?
Q. What is the significance of using the include? method in Ruby's Enumerable module?
Q. What is the purpose of the Enumerable#reduce method in Ruby?
Q. What does the term "lazy evaluation" refer to in Ruby?
Q. What is the purpose of the Object#tap method in Ruby?
Q. Which method is commonly used to convert an object into its string representation in Ruby?
Q. What is the purpose of the BasicObject class in Ruby?
Q. In Ruby, what does it mean to "freeze" an object?
Q. What is the purpose of the prepend method in Ruby?
Q. What is the main difference between instance_eval and class_eval in Ruby?
Q. What does the autoload method in Ruby do?
Q. In Ruby, what is the purpose of the __send__ method?
Q. What is a "predicate method" in Ruby?
Q. Which method in Ruby is used to convert an object to a JSON string?
Q. What is the purpose of the catch and throw keywords in Ruby?
Q. What does the "bang" (!) operator do when appended to a method name in Ruby?
Q. What is the purpose of the String#<< method in Ruby?
Q. What does the term "immutability" refer to in Ruby?
Q. What is the purpose of the Enumerator class in Ruby?
Q. What does the term "memoization" refer to in Ruby?
Q. In Ruby, what is the purpose of the module_function keyword?
Q. What does the "stabby lambda" (->) syntax in Ruby represent?
Q. What is a "callback" in the context of Ruby on Rails?
Q. What is the purpose of the attr_accessor method in Ruby?
Q. What does the term "DSL" stand for in Ruby programming?
Q. Which Ruby module is commonly used to implement the Singleton design pattern?
Q. What is the purpose of the public_send method in Ruby?
Q. In Ruby, what is the purpose of the #method method?
Q. Which method is commonly used to dynamically define instance methods in Ruby?
Q. What is a "memoization" technique in Ruby?
Q. What is a "class variable" in Ruby?
Q. What does the super keyword do in Ruby?
Q. What is the purpose of the retry keyword in Ruby?
Q. What does the "splat" operator (*) do when used in method definitions in Ruby?
Q. In Ruby, what is the purpose of the Module#prepend method?
Q. What is a "magic comment" in Ruby?
Q. What is the purpose of the const_missing method in Ruby?
Q. Which Ruby module is commonly used for method delegation?
Q. What does the send method in Ruby do?
Q. What is the primary difference between module_function and extend self in Ruby?
Q. What is the purpose of the Kernel#autoload method in Ruby?
Q. What does the term "aliasing" refer to in Ruby?
Q. What is the purpose of the method_missing method in Ruby's BasicObject class?
Q. What is the recommended way to handle sensitive information, such as API keys, in Ruby projects?
Q. Which tool is commonly used for continuous integration (CI) in Ruby projects?
Q. What is the purpose of a Gemfile in a Ruby project?
Q. Which tool is commonly used for version control in Ruby projects?
Q. What does the term "DRY" stand for in Ruby programming?
Q. Which tool is commonly used for documenting Ruby code?
Q. What is the recommended indentation style for Ruby code?
Q. Which Ruby version manager is commonly used for managing multiple Ruby installations?
Q. What is the recommended way to comment out multiple lines of code in Ruby?
Q. Which naming convention is commonly used for method names in Ruby?
Q. What is the purpose of a .gitignore file in a Ruby project?
Q. Which of the following is a good practice for writing clear and readable Ruby code?
Q. Which tool is commonly used for code formatting and linting in Ruby?
Q. What is the recommended way to install Ruby gems in a project?
Q. What is the recommended way to handle exceptions in Ruby?
Q. What is the recommended indentation style in Ruby?
Q. What is the recommended way to document Ruby methods and classes?
Q. What is the recommended naming convention for variables in Ruby?
Q. Which tool is commonly used for code formatting in Ruby projects?
Q. What is the recommended approach for testing Ruby code?
Q. What is the purpose of the KISS principle in Ruby programming?
Q. Which Ruby convention is commonly used for naming variables and method parameters?
Q. What is the purpose of writing self-explanatory comments in Ruby code?
Q. What does the principle of YAGNI stand for in Ruby programming?
Q. Which Ruby convention is commonly used for naming classes and modules?
Q. What is the purpose of the Single Responsibility Principle (SRP) in Ruby programming?
Q. Which Ruby convention is commonly used for naming constants?
Q. What is the purpose of using descriptive variable and method names in Ruby code?
Q. Which Ruby tool is commonly used for formatting code according to community style guides?
Q. What does the principle of DRY stand for in Ruby programming?
Q. Which Ruby convention is commonly used for naming files that contain Ruby code?
Q. Which Ruby convention is commonly used for naming predicate methods that return a boolean value?
Q. What does the term "polymorphism" mean in the context of Ruby programming?
Q. Which Ruby convention is commonly used for naming methods that modify an object's state?
Q. What is the purpose of using snake_case for method and variable names in Ruby?
Q. What is the significance of following the "Rule of Three" in Ruby programming?
Q. What is the purpose of using version control systems (VCS) like Git in Ruby development?
Q. Which Ruby tool is commonly used for automated testing to ensure code quality and reliability?
Q. What is the recommended line length limit for Ruby code according to most style guides?
Q. Which Ruby convention is commonly used for naming private methods?
Q. What is the purpose of using comments in Ruby code?
Q. Which Ruby convention is commonly used for naming instance variables?
Q. What is the purpose of using constants in Ruby programming?
Q. Which Ruby convention is commonly used for naming global variables?
Q. What is the purpose of the "Law of Least Astonishment" in Ruby programming?
Q. Which tool is commonly used for Ruby version management and dependency isolation?
Q. What is the recommended approach for handling exceptions in Ruby?
Q. What is the purpose of a feature file in Cucumber testing?
Q. Which testing framework is included in the Ruby standard library?
Q. What is the purpose of a stub in Ruby testing?
Q. Which assertion method is commonly used in MiniTest for testing equality of values?
Q. What is the purpose of the before hook in RSpec?
Q. Which command is commonly used to run RSpec tests from the command line?
Q. What is the purpose of a mock object in Ruby testing?
Q. Which assertion method is commonly used in RSpec for testing equality of values?
Q. What is the purpose of a test suite in Ruby testing?
Q. Which testing framework is commonly used for behavior-driven development (BDD) in Ruby?
Q. What is the purpose of a cucumber tag in Cucumber testing?
Q. Which method is commonly used to assert that a certain exception is raised in RSpec?
Q. What is the purpose of a scenario outline in Cucumber testing?
Q. Which command is commonly used to run MiniTest tests from the command line?
Q. What is the purpose of a fixture in Ruby testing?
Q. What is the purpose of a step definition in Cucumber testing?
Q. What is the purpose of the let keyword in RSpec?
Q. Which keyword is commonly used in Cucumber feature files to define a scenario?
Q. What is the purpose of a matcher in RSpec?
Q. Which assertion method is commonly used in Test::Unit for testing equality of values?
Q. What is the purpose of the pending keyword in RSpec?
Q. What is the purpose of the be_a matcher in RSpec?
Q. What is the purpose of the assert_match method in MiniTest?
Q. Which keyword is commonly used in Cucumber feature files to define a background?
Q. What is the purpose of the should syntax in RSpec?
Q. What is the purpose of the assert_empty method in MiniTest?
Q. What is the purpose of a background section in a Cucumber feature file?
Q. Which command is commonly used to generate a new RSpec test file?
Q. What is the purpose of a setup block in MiniTest?
Q. What is the purpose of a subject block in RSpec?
Q. What is the purpose of the background keyword in Cucumber?
Q. What is the purpose of the assert_predicate method in MiniTest?
Q. Which command is commonly used to run Cucumber tests from the command line?
Q. Which assertion method is commonly used in MiniTest for testing if an array is empty?
Q. What is the purpose of a setup method in Test::Unit?
Q. What is the purpose of a let! block in RSpec?
Q. Which command is commonly used to generate a new Cucumber feature file?
Q. What is the purpose of the assert_includes method in MiniTest?
Q. Which command is commonly used to run Test::Unit tests from the command line?
Q. Which assertion method is commonly used in RSpec for testing if an object responds to a method?
Q. Which method is used to find the number of days between two Date objects in Ruby?
Q. How do you convert a Date object to a string in Ruby?
Q. What does the zone method return for a Time object in Ruby?
Q. How do you find the difference in seconds between two Time objects in Ruby?
Q. What is the purpose of the Time.now method in Ruby?
Q. Which method is used to add a number of months to a Date object in Ruby?
Q. What is the purpose of the strptime method in Ruby?
Q. Which method is used to subtract a number of days from a Date object in Ruby?
Q. What does the strftime method do in Ruby when applied to a Time object?
Q. How do you create a new Date object representing the current date in Ruby?
Q. What does the month method return for a Date object in Ruby?
Q. Which method is used to calculate the difference in years between two Date objects in Ruby?
Q. How do you convert a Time object to the local time zone in Ruby?
Q. What is the purpose of the zone method for a DateTime object in Ruby?
Q. How do you find the day of the week for a given Date object in Ruby?
Q. How do you find the number of months between two Date objects in Ruby?
Q. What does the utc_offset method return for a Time object in Ruby?
Q. Which method is used to check if a Time object occurs after another Time object in Ruby?
Q. How do you find the number of seconds since the Unix epoch for a Time object in Ruby?
Q. What does the to_date method do when applied to a Time object in Ruby?
Q. What is the purpose of the zone method for a Date object in Ruby?
Q. How do you find the number of days between two Date objects in Ruby?
Q. What does the ordinal method return for a Date object in Ruby?
Q. How do you find the number of seconds between two Time objects in Ruby?
Q. What is the purpose of the xmlschema method for formatting date and time strings in Ruby?
Q. How do you find the number of minutes between two Time objects in Ruby?
Q. What does the start_of_week method do for a Date object in Ruby?
Q. Which method is used to find the number of weeks between two Date objects in Ruby?
Q. What is the purpose of the parse method for parsing dates in Ruby?
Q. How do you find the number of hours between two Time objects in Ruby?
Q. What is the purpose of the seconds_since_midnight method for a Time object in Ruby?
Q. What does the advance method do for a Date object in Ruby?
Q. How do you find the number of hours between two DateTime objects in Ruby?
Q. What is the purpose of the beginning_of_week method for a Date object in Ruby?
Q. How do you find the number of milliseconds between two Time objects in Ruby?
Q. What does the at_beginning_of_day method do for a DateTime object in Ruby?
Q. How do you find the number of seconds between two DateTime objects in Ruby?
Q. How do you find the number of weeks in the current year in Ruby?
Q. What does the utc method do for a Time object in Ruby?
Q. How do you find the number of days in the current month in Ruby?
Q. How do you find the number of days between two Time objects in Ruby?
Q. What is the purpose of the advance method for a Time object in Ruby?
Q. What does the ago method do for a Time object in Ruby?
Q. How do you find the number of minutes between two DateTime objects in Ruby?
Q. Which command is used to build a Ruby gem from a gemspec file?
Q. What does the command gem search keyword do in Ruby?
Q. What is the purpose of the gemfile.lock file in Ruby projects?
Q. Which command is used to update all installed gems to their latest versions in Ruby?
Q. What is the purpose of the Gemfile in Ruby projects?
Q. What does the command gem uninstall gem_name do in Ruby?
Q. What is Bundler in the context of Ruby Gems?
Q. Which command is used to list all installed gems in Ruby?
Q. How do you install a Ruby Gem?
Q. What is the purpose of the gem owner gem_name command in Ruby?
Q. What does the --remote flag do in the context of the gem list command in Ruby?
Q. Which command is used to uninstall all gems except default gems in Ruby?
Q. How do you specify a specific version of a gem to be installed in a Gemfile?
Q. What is the purpose of the gem update --system command in Ruby?
Q. What is the purpose of the --no-ri and --no-rdoc flags when installing gems?
Q. What does the command gem pristine gem_name do in Ruby?
Q. How do you create a new Ruby gem?
Q. What is the purpose of the gem environment command in Ruby?
Q. What is the purpose of the gemspec file in a Ruby gem?
Q. What is the purpose of the bundle exec command in Ruby projects?
Q. What does the gem list --local command do in Ruby?
Q. What is the purpose of the --development flag when updating gems using Bundler?
Q. What does the gem pristine --all command do in Ruby?
Q. What is the purpose of the gem outdated command in Ruby?
Q. What does the gem yank gem_name --version version_number command do in Ruby?
Q. What is the purpose of the bundle install --without production command in Ruby projects?
Q. What is the purpose of the --development flag when installing gems using Bundler?
Q. Which command is used to view information about a specific gem in Ruby?
Q. What is the purpose of the gem environment gemdir command in Ruby?
Q. What is the purpose of the gem install gem_name -N command in Ruby?
Q. Which command is used to list outdated gems and their dependencies in Ruby?
Q. What does the gem install gemfile command do in Ruby?
Q. What is the purpose of the --no-document flag when installing gems using Bundler?
Q. Which command is used to open the documentation for a specific gem in Ruby?
Q. What does the gem uninstall gem_name -v version_number command do in Ruby?
Q. What is the purpose of the gem dependency gem_name command in Ruby?
Q. Which command is used to check the details of a specific gem version in Ruby?
Q. What does the gem fetch gem_name command do in Ruby?
Q. Which command is used to view information about a specific gem version in Ruby?
Q. What is the purpose of the --install-dir flag when installing gems using Bundler?
Q. Which command is used to install gems listed in a Gemfile.lock file?
Q. What does the gem specification gem_name command do in Ruby?
Q. What is the purpose of the --platform flag when installing gems using Bundler?
Q. Which command is used to uninstall all versions of a gem in Ruby?
Q. What is the purpose of the gem contents gem_name command in Ruby?
Q. What does the gem help commands command do in Ruby?
Q. What is the purpose of the --ignore-dependencies flag when installing gems using Bundler?
Q. What does the gem cleanup --dryrun command do in Ruby?
Q. What is the purpose of the --no-ri and --no-rdoc flags when installing gems using Bundler?
Q. Which command is used to list all gems installed on the system in Ruby?
Q. What does the gem outdated command do in Ruby?
Q. What is the purpose of the gem uninstall gem_name -I command in Ruby?
Q. What does the gem search -r keyword command do in Ruby?
Q. What is the purpose of the --document flag when installing gems using Bundler?
Q. What does the zip method do in Ruby enumerators?
Q. Which method is used to convert a collection into an enumerator in Ruby?
Q. What is an enumerator in Ruby?
Q. What is the purpose of the reduce method in Ruby enumerators?
Q. What does the select method do in Ruby enumerators?
Q. How do you define a custom iterator in Ruby?
Q. What does the map method do in Ruby enumerators?
Q. What is the purpose of the each method in Ruby iterators?
Q. Which method is used to create an enumerator in Ruby?
Q. What is an iterator in Ruby?
Q. What does the max_by method do in Ruby enumerators?
Q. What is the purpose of the drop_while method in Ruby enumerators?
Q. What does the grep method do in Ruby enumerators?
Q. What does the inject method do in Ruby enumerators?
Q. What does the 'any?' method do in Ruby enumerators?
Q. What is the purpose of the times method in Ruby enumerators?
Q. What does the find method do in Ruby enumerators?
Q. What does the cycle method do in Ruby enumerators?
Q. What is the purpose of the each_with_index method in Ruby enumerators?
Q. How do you create a custom enumerator in Ruby?
Q. What does the grep_v method do in Ruby enumerators?
Q. What does the each_slice method do in Ruby enumerators?
Q. What is the purpose of the with_index method in Ruby enumerators?
Q. What does the take_while method do in Ruby enumerators?
Q. What is the purpose of the cycle method in Ruby enumerators?
Q. What is the purpose of the each_cons method in Ruby enumerators?
Q. What does the one? method do in Ruby enumerators?
Q. What does the slice_before method do in Ruby enumerators?
Q. What is the purpose of the lazy method in Ruby enumerators?
Q. What does the max method do in Ruby enumerators?
Q. What is the purpose of the chunk_while method in Ruby enumerators?
Q. What does the flat_map method do in Ruby enumerators?
Q. What is the purpose of the detect method in Ruby enumerators?
Q. What is the purpose of using blocks and procs in Ruby?
Q. What does the & operator do when used with a proc in Ruby?
Q. How do you define a lambda in Ruby?
Q. How do you call a block in Ruby?
Q. What is the difference between a block and a proc in Ruby?
Q. How do you create a proc in Ruby?
Q. How do you define a block in Ruby?
Q. Which method is used to check if a block has been passed to a Ruby method?
Q. What does the yield keyword do in Ruby?
Q. Which method is used to convert a block into a proc in Ruby?
Q. What happens if you try to yield to a block that does not exist in Ruby?
Q. Which keyword is used to define a block in Ruby?
Q. In Ruby, what is the difference between a proc and a lambda?
Q. What does the block_given? method do in Ruby?
Q. What does the lambda? method do in Ruby?
Q. What happens if a block is passed to a method that doesn't expect one in Ruby?
Q. How do you pass a proc as an argument to a method in Ruby?
Q. What does the arity method return for a proc or lambda in Ruby?
Q. In Ruby, what is the purpose of the -> (stabby lambda) syntax?
Q. What is the purpose of using the next keyword within a block in Ruby?
Q. Which of the following is true about the stability of variables within a block in Ruby?
Q. What does the lambda keyword return in Ruby?
Q. What is the purpose of the call method in Ruby procs and lambdas?
Q. In Ruby, what is a closure?
Q. What does the \s character class represent in a regular expression in Ruby?
Q. What does the ^ anchor represent in a regular expression in Ruby?
Q. Which metacharacter is used to specify optional characters in a regular expression in Ruby?
Q. What does the \d character class represent in a regular expression in Ruby?
Q. Which modifier is used to perform case-insensitive matching in Ruby regular expressions?
Q. What is the purpose of the + quantifier in a regular expression in Ruby?
Q. What does the /\A anchor represent in a regular expression in Ruby?
Q. Which method is used to find the first occurrence of a pattern in a string in Ruby?
Q. What does the =~ operator do in Ruby when used with regular expressions?
Q. What is the purpose of the \G anchor in a regular expression in Ruby?
Q. What does the \A anchor represent in a regular expression in Ruby?
Q. Which modifier is used to perform global matching in Ruby regular expressions?
Q. Which metacharacter is used to specify character ranges in a regular expression in Ruby?
Q. What does the $ anchor represent in a regular expression in Ruby?
Q. Which method is used to extract all occurrences of a pattern in a string in Ruby?
Q. What does the \w character class represent in a regular expression in Ruby?
Q. What is the purpose of the * quantifier in a regular expression in Ruby?
Q. What does the \b anchor represent in a regular expression in Ruby?
Q. Which modifier is used to perform multiline matching in Ruby regular expressions?
Q. Which metacharacter is used to specify the beginning of a line in a regular expression in Ruby?
Q. What does the (?<!...) construct represent in a regular expression in Ruby?
Q. Which method is used to split a string into substrings based on a regular expression in Ruby?
Q. What does the (?<=...) construct represent in a regular expression in Ruby?
Q. Which modifier is used to perform single-line matching in Ruby regular expressions?
Q. Which metacharacter is used to specify grouping in a regular expression in Ruby?
Q. What does the 'r+' file mode in Ruby signify?
Q. What does the File.exist? method in Ruby return if the specified file exists?
Q. Which method in Ruby is used to check if the end of a file has been reached?
Q. What does the 'a+' file mode in Ruby signify?
Q. Which method in Ruby is used to write data to a file?
Q. How do you close a file in Ruby after performing file operations?
Q. What is the purpose of the File.readlines() method in Ruby?
Q. Which method in Ruby is used to read a line from a file?
Q. How do you open a file in Ruby in write mode, creating it if it does not exist?
Q. What does File.open() return in Ruby when the file is successfully opened?
Q. What method is used to check if a file is writable in Ruby?
Q. How do you check if a file in Ruby is readable?
Q. What does the 'w' file mode in Ruby signify?
Q. What is the result of using File.open() with the block syntax in Ruby?
Q. What is the purpose of the File.size method in Ruby?
Q. Which method in Ruby is used to delete a file?
Q. How do you read the entire contents of a file into a string in Ruby?
Q. What does the File.rename() method in Ruby do?
Q. Which method in Ruby is used to set the position of the file pointer?
Q. What is the purpose of the File.exist? method in Ruby?
Q. What is the purpose of the chown method in Ruby file I/O?
Q. How do you create a new directory in Ruby?
Q. What does the fcntl method do in Ruby file I/O?
Q. How can you get the absolute path of a file in Ruby?
Q. Which method is used to check if a file is executable in Ruby?
Q. What does the truncate method do in Ruby file I/O?
Q. How can you check if a file is readable in Ruby?
Q. What does the binmode method do in Ruby file I/O?
Q. Which method is used to delete a file in Ruby?
Q. How do you check the size of a file in Ruby?
Q. Which method is used to retrieve file attributes in Ruby?
Q. What does the ctime method return in Ruby file I/O?
Q. Which method is used to check if a file is hidden in Ruby?
Q. What happens if an exception is raised within a rescue block in Ruby?
Q. What is the main advantage of using exception handling in Ruby?
Q. What is the purpose of using exception handling in Ruby?
Q. What is the purpose of the ensure keyword in Ruby?
Q. What is the purpose of the raise keyword in Ruby?
Q. Which of the following is true about the ensure keyword in Ruby exception handling?
Q. What happens if an exception is raised but not rescued in Ruby?
Q. What is the purpose of the rescue keyword in Ruby?
Q. Which keyword is used to begin the exception handling block in Ruby?
Q. What is an exception in Ruby?
Q. What is the purpose of the else keyword in Ruby exception handling?
Q. What is the purpose of the retry keyword in Ruby?
Q. What is the purpose of the ensure keyword in Ruby exception handling?
Q. Which of the following keywords is used to rescue specific types of exceptions in Ruby?
Q. Which keyword is used to rescue specific types of exceptions in Ruby?
Q. What happens if an exception is raised within an ensure block in Ruby?
Q. What does the ensure keyword do in Ruby exception handling?
Q. What is the purpose of the retry keyword in Ruby exception handling?
Q. What is the primary purpose of the else keyword in Ruby exception handling?
Q. Which keyword is used to define an exception class in Ruby?
Q. What is the main purpose of using inheritance in Ruby?
Q. What does the attr_accessor method do in Ruby classes?
Q. What is the purpose of polymorphism in Ruby?
Q. What is encapsulation in Ruby?
Q. In Ruby, which keyword is used to refer to the current instance of a class?
Q. What is the primary purpose of a constructor in a Ruby class?
Q. What does polymorphism allow in Ruby?
Q. Which keyword is used to define a private method in Ruby?
Q. What does the super keyword do in Ruby?
Q. What is inheritance in Ruby?
Q. Which keyword is used to refer to the current instance of a class in Ruby?
Q. What is the primary goal of using polymorphism in Ruby?
Q. In Ruby, what is encapsulation?
Q. What is the main purpose of a constructor in a Ruby class?
Q. In Ruby, what is the purpose of the super keyword?
Q. What is the purpose of the include keyword in Ruby classes?
Q. What does the term "inheritance" refer to in Ruby?
Q. What is the purpose of the extend keyword in Ruby?
Q. What is the main advantage of using polymorphism in Ruby?
Q. What is the significance of the initialize method in Ruby classes?
Q. What does the include keyword do in Ruby?
Q. What does the term "polymorphism" mean in Ruby?
Q. What is the main advantage of using encapsulation in Ruby?
Q. What is the purpose of the initialize method in Ruby classes?
Q. What is the primary benefit of using inheritance in Ruby?
Q. What is the purpose of the attr_accessor method in Ruby classes?
Q. What does polymorphism allow in OOP?
Q. What is the significance of the initialize method in Ruby classes?
Q. What does the term "class" refer to in OOP?
Q. What is the purpose of abstraction in OOP?
Q. Which concept in OOP promotes reusability and reduces redundancy in code?
Q. What is the main principle behind object-oriented programming?
Q. What is the purpose of the super keyword in Ruby OOP?
Q. What is polymorphism in OOP?
Q. What does inheritance allow in OOP?
Q. What is encapsulation in object-oriented programming (OOP)?
Q. What does the attr_accessor method do in Ruby OOP?
Q. Which OOP principle promotes reusability and reduces redundancy in code?
Q. Which concept in OOP allows objects to exhibit multiple behaviors based on their types or class?
Q. What is the purpose of inheritance in OOP?
Q. What does the term "object" refer to in OOP?
Q. What is the purpose of the include keyword in Ruby classes?
Q. What is the main advantage of using OOP principles in programming?
Q. What is the difference between attr_reader, attr_writer, and attr_accessor in Ruby?
Q. What is the purpose of the attr_accessor method in Ruby classes?
Q. What is the main purpose of using abstraction in Object-Oriented Programming?
Q. What is the purpose of the extend keyword in Ruby?
Q. What does the term "polymorphism" refer to in Object-Oriented Programming?
Q. What is the main advantage of using encapsulation in Object-Oriented Programming?
Q. In Ruby, which keyword is used to define a private method?
Q. What is the primary purpose of a constructor in a Ruby class?
Q. What does the term "inheritance" mean in Object-Oriented Programming?
Q. What is the significance of the attr_writer method in Ruby classes?
Q. What is the purpose of the self keyword in Ruby?
Q. What does the term "abstraction" mean in Object-Oriented Programming?
Q. What is the main advantage of using Object-Oriented Programming (OOP) principles?
Q. What is the significance of using the super keyword in a Ruby class?
Q. Which method is called automatically when an object is created in Ruby?
Q. What is encapsulation in Ruby classes?
Q. What is the purpose of inheritance in Ruby classes?
Q. Which keyword is used to refer to the current instance of a class in Ruby?
Q. What is the purpose of the attr_accessor method in Ruby classes?
Q. Which method is used to create a new instance of a class in Ruby?
Q. In Ruby, what is an object?
Q. What does the initialize method do in a Ruby class?
Q. Which keyword is used to define a class in Ruby?
Q. Which keyword is used to define an instance method in Ruby?
Q. In Ruby, what is a superclass?
Q. What is the purpose of the attr_writer method in Ruby classes?
Q. Which keyword is used to access methods and variables within the same class in Ruby?
Q. What is the purpose of the attr_reader method in Ruby classes?
Q. What does the self keyword refer to in Ruby classes?
Q. In Ruby, what does the extend keyword do?
Q. What is the purpose of the include keyword in Ruby classes?
Q. Which of the following is a correct way to define a class method in Ruby?
Q. What does the super keyword do in a Ruby class?
Q. What is polymorphism in Ruby?
Q. In Ruby, what is the purpose of the attr_reader method in a class?
Q. In Ruby, what is the purpose of method overloading?
Q. What is the purpose of the private keyword in Ruby classes?
Q. What does the super keyword do in a Ruby class method?
Q. What is the purpose of the extend keyword in Ruby?
Q. Which keyword is used to define a class method in Ruby?
Q. What is the purpose of method overriding in Ruby?
Q. What does the protected keyword do in Ruby classes?
Q. Which method is called when an object is garbage collected in Ruby?
Q. What is the purpose of inheritance in Ruby?
Q. What is the purpose of encapsulation in Ruby classes?
Q. In Ruby, which method is used to define getter and setter methods for class attributes?
Q. What is the purpose of the `extend` keyword in Ruby classes?
Q. What is the purpose of the `include` keyword in Ruby classes?
Q. In Ruby, what is the purpose of the `super` keyword when used in a method?
Q. What does the `protected` keyword do in Ruby classes?
Q. What is the purpose of the initialize method in Ruby classes?
Q. Which keyword is used to define a private method in a Ruby class?
Q. What is the difference between a class method and an instance method in Ruby?
Q. What is the method used to define class methods in Ruby?
Q. What is the method used to check if an object is an instance of a particular class in Ruby?
Q. What does the super keyword do in Ruby?
Q. What is the method used to inherit from a superclass in Ruby?
Q. What is the purpose of the initialize method in Ruby?
Q. What does the attr_accessor method do in Ruby?
Q. Which of the following is used to access instance variables in Ruby?
Q. How do you define a constructor in Ruby?
Q. Which keyword is used to create a new instance of a class in Ruby?
Q. What is the keyword used to define a class in Ruby?
Q. What is the syntax for defining a class method in Ruby?
Q. What does the super keyword do in Ruby classes?
Q. Which keyword is used to inherit a class in Ruby?
Q. What is the method used to define instance variables in Ruby?
Q. How do you access instance variables in Ruby?
Q. What does the protected keyword do in a Ruby class?
Q. What does the private keyword do in a Ruby class?
Q. Which method is used to define class variables in Ruby?
Q. What is the keyword used to refer to the current instance of a class in Ruby?
Q. What is the method used to define instance methods in Ruby?
Q. How do you access class variables in Ruby?
Q. What is the syntax for defining a class in Ruby?
Q. Which keyword is used to call a method on an object in Ruby?
Q. What is the purpose of the attr_reader method in Ruby classes?
Q. Which method is used to define getter and setter methods for instance variables in Ruby?
Q. What is the syntax for defining an instance method in Ruby?
Q. What is the purpose of the attr_accessor method in Ruby classes?
Q. What is the method used to access class variables in Ruby?
Q. What is the method used to define a class variable in Ruby?
Q. Which keyword is used to refer to the current instance of a class in Ruby?
Q. Which method is used to define a class method in Ruby?
Q. Which keyword is used to define a class in Ruby?
Q. What is the method used to access instance variables in Ruby?
Q. What is the purpose of the initialize method in Ruby classes?
Q. What is the method used to create a new instance of a class in Ruby?
Q. What is the method used to define a class method in Ruby?
Q. What does the `super` keyword do when called inside a method in Ruby?
Q. In Ruby, what does the `yield` keyword do in a method?
Q. In Ruby, what does the private keyword do when used in a class?
Q. What is the purpose of the splat operator (*) in Ruby method definitions?
Q. Which of the following is a correct way to call a method with arguments in Ruby?
Q. What does the attr_reader method do in Ruby?
Q. In Ruby, how do you define default parameter values for a method?
Q. What does the return keyword do in Ruby methods?
Q. Which keyword is used to call a method in Ruby?
Q. What is the syntax for defining a method in Ruby?
Q. In Ruby, which method is used to define a getter and setter for an instance variable?
Q. What is the result of calling a method in Ruby without parentheses?
Q. Which of the following is NOT a valid method definition syntax in Ruby?
Q. What is the purpose of the initialize method in Ruby classes?
Q. What does the return keyword do in Ruby methods?
Q. In Ruby, which keyword is used to call a method?
Q. What does the def keyword signify in Ruby?
Q. In Ruby, which method is called automatically when an object is created?
Q. What is the purpose of the `attr_accessor` method in Ruby?
Q. Which of the following is used to define a class method in Ruby?
Q. In Ruby, which keyword is used to define a class method?
Q. What is the purpose of the alias_method keyword in Ruby?
Q. In Ruby, what does the attr_reader method do?
Q. Which of the following is a correct way to define a method that takes multiple arguments in Ruby?
Q. What is the purpose of the yield keyword in Ruby?
Q. What is the purpose of the `alias` keyword in Ruby?
Q. What does the `super` keyword do in Ruby?
Q. In Ruby, which method is used to check if an object responds to a certain method?
Q. Which of the following is true about optional parameters in Ruby methods?
Q. What does the private keyword do in Ruby?
Q. What is the purpose of the `public` keyword in Ruby?
Q. In Ruby, what does the `singleton_method_defined?` method do?
Q. What does the `protected` keyword do in Ruby?
Q. In Ruby, what is the purpose of the `include` keyword in a class definition?
Q. What does the `public` keyword do in Ruby?
Q. Which method in Ruby is used to remove and return the last element of an array?
Q. What is the output of "hello".upcase in Ruby?
Q. How do you check if a key exists in a hash in Ruby?
Q. What does the << operator do when used with a string in Ruby?
Q. Which of the following methods is used to merge two hashes together in Ruby?
Q. In Ruby, how do you convert a string to an array of characters?
Q. What is the output of "hello".reverse in Ruby?
Q. Which method is used to access the value associated with a specific key in a hash in Ruby?
Q. What will array.size return in Ruby, if array = [1, 2, 3, 4, 5]?
Q. Which method in Ruby is used to add an element to the end of an array?
Q. What is the result of the expression `"hello".split` in Ruby?
Q. In Ruby, which method is used to add a key-value pair to a hash?
Q. Which method in Ruby is used to check if a key exists in a hash?
Q. What does the '<<' operator do when used with arrays in Ruby?
Q. In Ruby, which method is used to remove the last element from an array and return it?
Q. What is the output of ["apple", "banana", "cherry"].join(", ") in Ruby?
Q. Which method is used to check if an array includes a specific element in Ruby?
Q. What is the output of "hello".length in Ruby?
Q. What does the keys method return when called on a hash in Ruby?
Q. What does the join method do when used with an array in Ruby?
Q. Which of the following methods is used to remove a key-value pair from a hash in Ruby?
Q. What method in Ruby is used to join the elements of an array into a single string?
Q. In Ruby, which symbol is used to access the value associated with a key in a hash?
Q. What does the pop method do when called on an array in Ruby?
Q. Which method in Ruby is used to add an element to the end of an array?
Q. What does the `chomp` method do when used with strings in Ruby?
Q. What is the result of the expression `"hello".length` in Ruby?
Q. In Ruby, which method is used to concatenate two strings?
Q. In Ruby, what does the `capitalize` method do when used with strings?
Q. What does the `include?` method do when used with strings in Ruby?
Q. Arrays can be used to store multiple values in one single variable.
Q. What does the `reverse` method do when called on a string in Ruby?
Q. In Ruby, which method is used to convert a string to uppercase?
Q. Which of the following methods is used to check if a key exists in a hash in Ruby?
Q. What does the `each_key` method do when called on a hash in Ruby?
Q. In Ruby, how can you add a key-value pair to an existing hash?
Q. What does the `split` method do when called on a string in Ruby?
Q. What will be the output of the following? array = [100, 200, 300, 400, 500] print array[4]
Q. What is the output of the given code? a=[["a","b"]] b=[["e","a"]] print a + b
Q. It is possible to make array of booleans.
Q. What will be output of the given code? my_array = [1, 2, 3, 4] print my_array
Q. What is the output of the given code? string_array = ["a","e","i","o","u"] print string_array[3]
Q. What will be the output of the following? array = [100, 200, 300, 400, 500] print "array[5]"
Q. What is the output of the given code? string_array = ["a","e","i","o","u"] print string_array
Q. Array of arrays are called multidimensional arrays.
Q. What will be the output of the following? array = [100, 200, 300, 400, 500] print array[5]
Q. What is the output of the given code? a=[1,2,3,4,5] b=[1,2,4,6,8] if a[3]==b[2] print "Equal" end
Q. Each element in an array has an index and the starting index is index 1.
Q. What is the output of the given code? a=["hey", "ruby", "language"] b=[1, 2, 3] puts b[1] puts a[2]
Q. What is the output of the following code snippet? x = 10 unless x > 15 puts "Hello" end
Q. What is the purpose of the redo keyword in Ruby?
Q. Which of the following is NOT a comparison operator in Ruby?
Q. What does the break keyword do in a loop in Ruby?
Q. What is the result of the expression 5 > 3 ? "Yes" : "No" in Ruby?
Q. Which loop in Ruby allows you to iterate over a collection of elements?
Q. What is the purpose of the case statement in Ruby?
Q. In Ruby, what does the unless keyword do?
Q. Which of the following loops in Ruby is executed at least once?
Q. What is the keyword used to define a conditional statement in Ruby?
Q. In Ruby, what is the purpose of the `case` statement when combined with `when` clauses?
Q. What is the output of the following code snippet? x = 1 loop do puts x x += 1 break if x > 5 end
Q. What is the purpose of the next keyword in a loop in Ruby?
Q. What does the unless keyword do in Ruby?
Q. Which loop in Ruby allows you to execute code while a condition is true?
Q. What does the `retry` keyword do in Ruby?
Q. What is the output of the following code snippet? x = 5 while x > 0 puts x x -= 1 end
Q. Which of the following is NOT a logical operator in Ruby?
Q. In Ruby, what does the `elsif` keyword allow you to do?
Q. What does the `next` keyword do in a loop in Ruby?
Q. What is the purpose of the loop keyword in Ruby?
Q. In Ruby, which of the following is NOT a valid loop construct?
Q. In Ruby, what does the `case` statement allow you to compare against?
Q. What does the `retry` keyword do when used within a loop in Ruby?
Q. In Ruby, what does the `until` keyword do?
Q. Which of the following is NOT a valid way to exit a loop in Ruby?
Q. In Ruby, what does the `break` keyword do when used within nested loops?
Q. What is the output of the following code snippet? for i in 1..5 print i, " " end
Q. Which of the following is used to create a range in Ruby?
Q. What is the output of the following? if 1<2 print "one is less than two" end
Q. What error does the if condition gives if not terminated with end statement?
Q. If expression. The expression can be of which type?
Q. The following syntax is correct for if conditional statement. if condition code end
Q. In Ruby, what does the `elsif` keyword do?
Q. In Ruby, what does the `else` keyword do?
Q. In Ruby, which of the following is used to handle multiple conditions with one expression?
Q. Which keyword in Ruby is used to exit a loop prematurely?
Q. In Ruby, what is the purpose of the `redo` keyword?
Q. What is the use of else statement?
Q. It's a good habit to give two spaces between if statement and condition.
Q. If statement inside if statement is called Nested if statements.
Q. It is necessary that always if should come with else block?
Q. Which of the following is valid conditional statement?
Q. What is the output of the code? variable="true".length if variable puts "true" else puts "false" end
Q. What is the output of the code? variable=true if !variable puts "true" else puts "false" end
Q. What is the output of the code? variable=true if variable puts "true" else puts "false" end
Q. What is the output of the given code? if !true print "False" elsif !true || true print "True" end
Q. The elsif statement can add many alternatives to if/else statements.
Q. What is the output of the given code? print "2 is less than 3" unless 2>3
Q. What is the output of the given code? unless true && false print "false" else print "ruby" end
Q. The following syntax is also used for unless conditional statement. code unless conditional
Q. What is the output of the given code? a = 5 b=10 while a<b do puts a*b a+=2 b-=2 end
Q. What is the output of the given code? i = 50 while i > 25 do print 50/i i -= 1 end
Q. What is the output of the given code? i = 3 while i > 0 do print i i -= 1 end
Q. What is the output of the given code? a=5 b=15 while b>a puts a*(b-a) while a>b a+=1 b-=1 end end
Q. What is the output of the given code? a=5 b=15 while a&&b puts a+b end
Q. What is the output of the given code? i = 0 while i < 5 puts i i=(i+1)**2 end
Q. What is the output of the given code? counter = true while counter !=false puts counter end
Q. What is the output of the given code? m=0 loop do puts 101 m+=1 break if m==5 end
Q. What is the output of the given code? m=0 loop do puts m*10 m+=1 break if m==5 end
Q. What is the output of the given code? m=0 loop do print "ruby" m+=1 break if m==5 end
Q. What is the output of the given code? m= 8 loop do m += 2 puts m break if m == 16 end
Q. What is the output of the given code? a="hungry" until !a puts "hungry" a=!a end
Q. What is the output of the given code? counter = 0 until counter >= 10 puts counter counter+=1 end
Q. What is the output of the given code? counter = 1 until counter > 10 puts counter counter+=1 end
Q. The complement of while loop is until loop.
Q. What is the output of the given code? i=5 j=10 for i in 5..10 && j in 5..10 puts i**j end
Q. What does the 1..10 indicate?
Q. What is the output of the given code? i=1 for i in 5..10 puts i^2 end
Q. What is the output of the given code? loop do m += 1 puts m break if m == 3 end
Q. What is the output of the given code? for num in 1..5 puts num*num end
Q. What is the output of the given code? m= 0 loop do m += 1 print m break if m == 10 end
Q. What is the output of the given code? for num in 1..3 puts num for i in 1..2 puts num*i end end
Q. What does the 1...10 indicate?
Q. What is the output of the given code? for num in 1...5 puts num end
Q. What is the result of the expression: 3 ** 2 in Ruby?
Q. Which operator is used for modulo in Ruby?
Q. What does the <= operator do in Ruby?
Q. What does the > operator do in Ruby?
Q. What does the != operator do in Ruby?
Q. What does the == operator do in Ruby?
Q. What is the result of the expression: 5 % 2 in Ruby?
Q. What does the += operator do in Ruby?
Q. Which operator is used for addition in Ruby?
Q. What is the result of the expression: 4 > 2 && 5 < 7 in Ruby?
Q. What is the result of the expression: 3 ** 3 in Ruby?
Q. What is the result of the expression: 9 / 2 in Ruby?
Q. What does the >= operator do in Ruby?
Q. What is the result of the expression: 10 % 3 in Ruby?
Q. What does the *= operator do in Ruby?
Q. Which operator is used for subtraction in Ruby?
Q. What is the result of the expression: 6 / 2 in Ruby?
Q. What is the result of the expression: true && false in Ruby?
Q. What does the && operator do in Ruby?
Q. Assignment operator is also known as relational operator.
Q. Ruby does not support ++ operator, it only supports += operator.
Q. Which of the following is a valid boolean operator?
Q. What will be the output of the given code? boolean_1 = 2**3 != 3**2 || true puts boolean_1
Q. What is the output of the given code? counter = -50 while counter <0 puts counter counter+=10 end
Q. What is the result of the expression: !(true && false) in Ruby?
Q. Which of the following are used for comparison?
Q. What will be the output of the given code? boolean_1 = 77 < 78 && 77 < 77 puts boolean_1
Q. What will be the output of the given code? boolean_1 = !(700 / 10 == 70) puts boolean_1
Q. The boolean operator && only result in true when both the values are true?
Q. What is the output of the given code? a = 5 b=10 while (a <10 || b<20)&&true puts a*b a+=2 b+=2 end
Q. The given two expression means the same. counter=counter+1 and counter++
Q. What is the output of the given code? if(a==10 && b=9) print "true" else print "false" end
Q. What will the following expression evaluate to? true && false
Q. What will the following expression evaluate to? (true && false) | | (!true)
Q. What will the following expression evaluate to? true | | false
Q. Which of the following is a valid assignment operator?
Q. Boolean opeartors are also known as logical operators.
Q. What is the output of the given code? counter = 1 while counter < 11 puts counter counter+=1 end
Q. What will be the output of the given code? boolean_1 = false || -10 > -9 puts boolean_1
Q. What will the following code evaluate to? a=9!=10
Q. What is the output of the given code? counter=1 if counter<=5 puts (counter) counter=counter+1
Q. What is the output of the given code? a = 5 b=10 while a <10 && b<20 puts a*b a+=2 b+=2 end
Q. What is the output of the given code? counter = 100 while counter > 0 puts counter counter-=25 end
Q. What is the output of the given code? a= 5 b=10 while a <10 && b<20 puts a-b a+=2 b+=2 end
Q. What does the **= assignment operator do?
Q. What is the output of the given code? counter = 2 while counter < 68 puts counter counter**=2 end
Q. What is the method used to convert a value to string in Ruby?
Q. What is the data type of the value true in Ruby?
Q. What is the method used to convert a string to a float in Ruby?
Q. What is the method used to convert a string to an integer in Ruby?
Q. Which of the following is a valid variable name in Ruby?
Q. What does the 'nil' value represent in Ruby?
Q. Which symbol is used to declare a variable in Ruby?
Q. What is the default value of a variable in Ruby if not initialized?
Q. What is the data type of the value 3.14 in Ruby?
Q. Which of the following is NOT a valid data type in Ruby?
Q. What is the method used to check if a variable is empty in Ruby?
Q. What is the data type of the value "Hello, World" in Ruby?
Q. Which of the following is a valid way to declare a variable in Ruby?
Q. What is the correct syntax to declare and initialize a variable in Ruby?
Q. What is the method used to check if a variable is defined in Ruby?
Q. What is the output of the expression: "5" + "2" in Ruby?
Q. What is the method used to check the data type of a variable in Ruby?
Q. Which method is used to check if a variable is nil in Ruby?
Q. Which of the following is the correct way to declare a constant in Ruby?
Q. What is the result of the expression: 5 / 2 in Ruby?
Q. What is the method used to check if a variable is of a specific class in Ruby?
Q. Which method is used to convert a string to an array of characters in Ruby?
Q. What is the output of the expression: "10" * 3 in Ruby?
Q. What is the method used to check if a variable is numeric in Ruby?
Q. Which of the following is the correct way to declare a variable in Ruby with a default value?
Q. What is the method used to convert a string to lowercase in Ruby?
Q. What is the correct way to declare a variable in Ruby without assigning a value?
Q. What is the output of the expression: "5".to_i + 2 in Ruby?
Q. Which method is used to convert a string to uppercase in Ruby?
Q. What is the correct way to concatenate two strings in Ruby?
Q. In Ruby, what is the default file extension for Ruby files?
Q. What is the correct way to declare and initialize an array in Ruby?
Q. In Ruby, what is the keyword used to define a constant?
Q. What is the result of the expression: 10 % 3 in Ruby?
Q. What is the method used to check if a string contains a specific substring in Ruby?
Q. Which of the following is the correct way to define a variable in Ruby?
Q. Which of the following is the correct way to define a constant in Ruby?
Q. What is the data type of the value "true" in Ruby?
Q. What is the output of the expression: 7 / 2 in Ruby?
Q. What symbol is used to denote the end of a statement in Ruby?
Q. What does the 'print' method do in Ruby?
Q. What is the correct syntax for defining a variable in Ruby?
Q. Which of the following is NOT a valid data type in Ruby?
Q. What does the 'gets' method do in Ruby?
Q. Which of the following is a valid variable name in Ruby?
Q. In Ruby, what is the keyword used to define a method?
Q. What does the 'puts' method do in Ruby?
Q. Which symbol is used to concatenate strings in Ruby?
Q. What symbol is used to denote comments in Ruby?
Q. What is the correct way to define a conditional statement in Ruby?
Q. Which of these operators is used for string concatenation?
Q. How do you add two numbers in Ruby?
Q. What is the correct syntax for printing a message to the console?
Q. What is the correct way to declare a variable in Ruby?
Q. Which method is used to convert a string to uppercase in Ruby?
Q. What is the default file extension for Ruby files?
Q. Which of the following is the correct way to define a constant in Ruby?
Q. In Ruby, what is the keyword used to define a class?
Q. Which of the following is the correct way to start a single-line comment in Ruby?
Q. What is the correct way to define an array in Ruby?
Q. What is the purpose of the gem command in Ruby?
Q. What is the correct way to define a symbol in Ruby?
Q. What is the difference between nil and false?
Q. What is the difference between =~ and == operators?
Q. What are the different types of comments in Ruby?
Q. How do you call a method in Ruby?
Q. What is the correct way to define a method in Ruby?
Q. How do you access a value from a hash in Ruby?
Q. What is the correct syntax for creating a hash in Ruby?
Q. How do you pass arguments to a method in Ruby?
Q. What is the correct way to define a block in Ruby?
Q. How do you compare two objects in Ruby?
Q. What is the correct syntax for string interpolation in Ruby?
Q. How do you define a range in Ruby?
Q. What is the correct syntax for accessing a class method?
Q. What is the default return value of a method in Ruby?
Q. How do you break out of a loop in Ruby?
Q. What is the difference between += and = operators?
Q. How do you check the truthiness of a value in Ruby?
Q. Which operator is used for exponentiation in Ruby?
Q. In Ruby, what does the 'if' statement evaluate?
Q. Which method is used to check if a string contains a specific substring in Ruby?
Q. What does the 'chomp' method do in Ruby?
Q. Which symbol is used for the modulo operation in Ruby?
Q. What is the correct way to declare and initialize a variable in Ruby?
Q. What is the correct way to cast a string to an integer in Ruby?
Q. How do you get the current date and time in Ruby?
Q. What is the purpose of the require keyword in Ruby?
Q. What is the difference between && and & operators?
Q. In Ruby, what is the keyword used to define a loop that repeats until a condition is true?
Q. What is the output of the expression: "hello" + "world" in Ruby?
Q. Which method is used to find the length of an array in Ruby?
Q. What is the correct syntax for a multiline comment in Ruby?
Q. Which of the following is the correct way to define a range in Ruby?
Q. In Ruby, what is the correct way to define a constant?
Q. What does the 'return' keyword do in Ruby methods?
Q. Which method is used to convert a string to lowercase in Ruby?
Q. What is the result of the expression: 10 / 3 in Ruby?
Q. What is the size of an integer data type in ruby?
Q. The .length method is used to check number of characters.
Q. Which of the following is the valid string method?
Q. Which of the following features does the 2.0 version of ruby supports?
Q. What is the output of the following? "Iam learning ruby language".length
Q. What is the output of the following? ruby.reverse
Q. What is the output of given code? string="I'am Learning RUBY Language".downcase string.upcase
Q. What will be the output of the given code? "Come let's learn.reverse Ruby.length language".upcase
Q. How to comment multiple lines in ruby?
Q. What will be the output of the given code? "I'am learning Ruby Language".reverse.upcase.length
Q. What is the output of the given code? "Ruby Language".length = begin calculate length = end
Q. Ruby can be embedded into Hypertext Markup Language(HTML).
Q. What is the output of the given code? print "Hey" puts "Everyone!" print "We are learning Ruby"
Q. What does %Q{ Learn ruby language } represents?
Q. What is the output of the the given code? puts "My name is #{Name}"
Q. Ruby is an object oriented general purpose programming language.
Q. Which of the following is not a valid datatype?
Q. What is the use of .capitalize method?
Q. It is must for Ruby to use a compiler.
Q. Ruby can deal with both numbers and floating point values.
Q. What is the output of the given code? boolean_1 = 77<78 puts(boolean_1)
Q. Which of the following is not a valid library function?
Q. What is the output of the given code? “Ruby”.length #to find the length of given string
Q. What is the output of the given code? my_string=Ruby puts(my_string)
Q. Objects of which class does the integer from the range -2^30 to 2^(30-1) belong to?
Q. What is the output of the given code? Ans=Ruby puts "#[Ans] is an oop language"
Q. Why do we use =begin and =end?
Q. Which of the following type of comments are valid in ruby?
Q. What is the range of octal notation (\nnn)?
Q. What will be the output of the given code? "I'am learning Ruby Language".length.reverse.upcase
Q. What is the role of ! at the end of the capitalize method?
Q. Which of the following are valid floating point literal?
Q. The downcase method changes the whole string to smallcase letters.
Q. The .upcase and .capitalize method are used for capitalizing the whole string.
Q. What is the output of the given code? "Ruby Language".length =begin calculate length =end
Q. What will we the output of the given code? "I'am Learning RUBY Language".downcase
Q. We use semicolon or parentheses after every print or puts statement.
Q. Which of the following languages syntax matches with the Ruby's syntax?
Q. What is the sequence of ruby strings?
Q. What is the extension used for saving the ruby file?
Q. The following is the correct way to use multiline comment. = begin # comment = end
Q. What does the notataion \b stands for?
Q. What will we the output of the given code? I'am Learning RUBY Language.downcase
Q. What will any variable evaluate to if it is of Boolean data type?
Q. What does %{Learn ruby language} represents?
Q. How to comment a single line?
Q. What will be the output of the following? "Eric".irreverse
Q. For getting an input from the user which method is used?
Q. Why can not we use quotation marks (' or ") with boolean?
Q. Why is gets not preferred instead of gets.chomp?
Q. What is the primary purpose of the shinydashboard package in R Shiny applications?
Q. What is the role of the RCurl package in R?
Q. In R, which package is commonly used for working with regular expressions?
Q. What does the purrr package in R focus on?
Q. In R, which package provides tools for working with parallel computing, especially for loops?
Q. What is the primary functionality of the shinytest package in the context of Shiny applications?
Q. In R, what does the Rcpp package primarily enable?
Q. What is the primary purpose of the titan package in R?
Q. In R, which package is commonly used for symbolic computation and algebraic manipulation?
Q. What is the primary use of the shinytest package in the context of Shiny applications?
Q. In R, what is the purpose of the BiocManager package?
Q. What is the purpose of the reticulate package in R?
Q. In R, which package is commonly used for creating and customizing interactive maps?
Q. What is the role of the glmnet package in R?
Q. In R, which package is commonly used for working with data from the World Bank?
Q. What is the primary use of the feather package in R?
Q. In R, what is the role of the DT package?
Q. What does the rstan package in R primarily facilitate?
Q. In R, which package is commonly used for parallel computing, especially for tasks involving loops?
Q. What is the purpose of the stringdist package in R?
Q. What does the RCurl package in R enable you to do?
Q. In R, which package provides tools for working with HDF5 files?
Q. What is the primary use of the archivist package in R?
Q. In R, which package provides functions for creating and modifying interactive 3D plots?
Q. What is the purpose of the data.table package in R?
Q. In R, which package is commonly used for conducting sentiment analysis and text mining tasks?
Q. What does the stringi package in R provide?
Q. In R, which package is commonly used for working with large and complex datasets efficiently?
Q. What is the primary purpose of the rJava package in R?
Q. In R, what is the purpose of the caretEnsemble package?
Q. What is the primary use of the checkpoint package in R?
Q. What is the primary use of the keras package in R?
Q. In R, which package is commonly used for working with hierarchical and mixed-effects models?
Q. In R, what is the purpose of the drake package?
Q. What is the role of the shinytest package in R Shiny applications?
Q. What does the bigrquery package in R allow you to do?
Q. In R, what is the primary functionality of the shinydashboard package?
Q. In R, what is the primary functionality of the caret package?
Q. What does the Tidyverse package in R encompass?
Q. In R, what is the primary functionality of the shinydashboardPlus package?
Q. What is the primary use of the rmarkdown package in R?
Q. What is the purpose of the rvest package in R?
Q. What does the broom package in R provide?
Q. In R, what is the role of the RcppArmadillo package?
Q. What is the primary purpose of the R6 package in R?
Q. In R, which package is commonly used for dealing with imbalanced datasets in machine learning?
Q. What is the primary functionality of the bigmemory package in R?
Q. In R, which package is commonly used for working with geospatial data and generating maps?
Q. What does the future package in R provide?
Q. In R, what is the primary functionality of the kerasformula package?
Q. What is the purpose of the dtplyr package in R?
Q. In R, which package is commonly used for structural equation modeling (SEM)?
Q. What does the doParallel package in R facilitate?
Q. In R, what is the primary use of the blogdown package?
Q. What is the primary purpose of the rgl package in R?
Q. What is the primary use of the shinytest package in R Shiny applications?
Q. In R, which package is commonly used for Bayesian hierarchical modeling?
Q. What does the bigrquery package in R allow you to do?
Q. In R, what is the role of the RSelenium package?
Q. What is the primary purpose of the gganimate package in R?
Q. What is the purpose of the quosures package in R?
Q. In R, which package provides tools for working with graphs and networks?
Q. What is the primary use of the bigrquery package in R?
Q. In R, what is the purpose of the RSQLite package?
Q. What does the quanteda package in R focus on?
Q. What does the patchwork package in R provide?
Q. In R, which package is commonly used for creating and customizing interactive 3D plots?
Q. What is the primary use of the xgboost package in R?
Q. In R, what is the primary functionality of the slam package?
Q. What is the purpose of the bigrquery package in R?
Q. In R, what is the primary use of the textTinyR package?
Q. What does the drake package in R focus on?
Q. What is the role of the shinydashboardPlus package in R?
Q. In R, what does the DiagrammeR package enable you to create?
Q. In R, which package is commonly used for conducting statistical hypothesis tests?
Q. What is the purpose of the tm package in R?
Q. What is the primary functionality of the shiny package in R?
Q. What does the caret package in R facilitate?
Q. Which package provides functions for fitting linear and nonlinear mixed-effects models in R?
Q. In R, which package is specifically designed for working with time series data?
Q. What is the primary purpose of the ggplot2 package in R?
Q. Which package in R is commonly used for data manipulation and transformation tasks?
Q. What is the primary use of the dtplyr package in R?
Q. In R, which package is commonly used for creating interactive 3D plots?
Q. What is the purpose of the caretEnsemble package in R?
Q. In R, which package provides tools for working with spatial data and maps?
Q. What does the lubridate package in R primarily assist with?
Q. Which package in R is used for creating and modifying interactive plots using a web-based interface?
Q. What is the primary purpose of the stringr package in R?
Q. In R, which package is commonly used for dimensionality reduction and feature extraction?
Q. Which package provides a framework for building interactive web applications in R?
Q. What is the primary use case of the shinydashboard package in R?
Q. In R, which package is commonly used for natural language processing (NLP)?
Q. What is the primary functionality of the RODBC package in R?
Q. Which package in R is commonly used for creating and managing databases?
Q. What does the shinytest package in R assist with?
Q. In R, which package is commonly used for machine learning and predictive modeling?
Q. Which package in R is used for performing Bayesian statistical modeling?
Q. What does the kableExtra package in R provide?
Q. In R, which package is commonly used for creating animated and interactive plots?
Q. What is the purpose of the networkD3 package in R?
Q. In R, which package provides functions for conducting survival analysis?
Q. What is the role of the shinymaterial package in R Shiny applications?
Q. In R, which package provides tools for working with data from the World Bank?
Q. What is the primary use of the leaflet package in R?
Q. In R, which package is commonly used for Bayesian analysis of hierarchical models?
Q. What is the purpose of the dygraphs package in R?
Q. What does the magrittr package in R provide?
Q. In R, which package is commonly used for interactive data visualization and exploration?
Q. What is the purpose of the Hmisc package in R?
Q. In R, which package provides functions for working with large datasets stored in data frames?
Q. In R, which package is commonly used for creating and modifying network graphs?
Q. What is the primary use of the plotrix package in R?
Q. What does the RColorBrewer package in R provide?
Q. In R, which package is commonly used for accessing and analyzing financial data?
Q. In R, which package provides functions for creating and formatting tables in various formats?
Q. What is the primary use of the survminer package in R?
Q. In R, which package is commonly used for working with biological data and bioinformatics?
Q. What does the rmarkdown package in R facilitate?
Q. In R, which package is commonly used for machine learning with support vector machines (SVM)?
Q. In R, which package is commonly used for creating and formatting tables in LaTeX?
Q. What is the primary use of the rvest package in R?
Q. In R, which package is commonly used for working with data from the U.S. Census Bureau?
Q. What is the primary purpose of the psych package in R?
Q. In R, which package is commonly used for creating and customizing choropleth maps?
Q. What does the shinyjs package in R allow you to do?
Q. In R, which package is commonly used for working with genomic and genetic data?
Q. What is the purpose of the ROCR package in R?
Q. In R, which package provides tools for creating interactive dashboards with a focus on ease of use?
Q. What does the rsample package in R provide?
Q. How do you create a probability plot in R for assessing the fit of a distribution to observed data?
Q. What is the purpose of the hist() function in R?
Q. How do you create a scatter plot in R for two numeric variables x and y?
Q. What is the role of the ecdf() function in R?
Q. In R, how do you generate random numbers from a uniform distribution between 0 and 1?
Q. What is the purpose of the density() function in R?
Q. How do you create a boxplot in R for a numerical variable named values?
Q. What does the qqnorm() function in R do?
Q. In R, how do you create a histogram for a numeric variable variable?
Q. What function in R is used to generate random numbers from a standard normal distribution?
Q. In R, what is the purpose of the hist() function with the argument probability = TRUE?
Q. What function is used to calculate the standard deviation of a numeric variable named variable in R?
Q. How do you generate a random sample from a binomial distribution in R with parameters n and p?
Q. What does the qqline() function in R do when used with a quantile-quantile plot?
Q. In R, how do you compute the median of a numeric variable named variable?
Q. What is the purpose of the boxplot() function in R?
Q. How do you generate a normal probability plot in R for a numeric variable values?
Q. In R, how do you compute the mean of a numeric variable named variable?
Q. What is the purpose of the pairs() function in R?
Q. How do you create a stem-and-leaf plot for a numeric variable values in R?
Q. In R, what does the polygon() function do when used in a plot?
Q. What is the role of the layout() function in R graphics?
Q. How do you calculate the mode of a numeric variable named variable in R?
Q. In R, what does the plot() function do when applied to a linear regression model?
Q. How do you generate random numbers from a Poisson distribution in R with parameter lambda?
Q. What is the purpose of the barplot() function in R?
Q. How do you create a kernel density plot in R for a numeric variable values?
Q. . . . . . . . . gives the length and height of the current figure in inches.
Q. Which of the following declares the current plot undeclared?
Q. Which function draws an axis on the current plot?
Q. Which function is used to simulate discrete uniform random variables?
Q. The graphical parameter . . . . . . . . defines how many lines appear in each of the four margins.
Q. ask=T is a parameter that R asks before producing the . . . . . . . .
Q. Which of the following will be used in fancy plots?
Q. The method that the optimized weight values are attained is called as . . . . . . . .
Q. . . . . . . . . level plotting functions that start a new plot.
Q. Which of the following is the plotting character?
Q. . . . . . . . . level plotting functions that add elements to an existing plot.
Q. Which of the following is a distribution derived from the normal distribution?
Q. Which package resorts to numerical methods when it encounters a model it does not recognize.
Q. Which line numbers are further away from the plot?
Q. The . . . . . . . . parameter influences the spread of the distribution about its median.
Q. Which of the following is the colour argument?
Q. . . . . . . . . is discovering unseen patterns from data.
Q. . . . . . . . . will be called inside par() to set margins.
Q. Every . . . . . . . . function has a probability distribution function.
Q. Two important methods in analysis is differentiation and . . . . . . . . transformation.
Q. The corresponding R function for the CDF is . . . . . . . .
Q. The abbreviation of Cumulative Distributive Function is . . . . . . . .
Q. The associated R function is dweibull(x, shape, scale = 1) is for . . . . . . . . distribution.
Q. The building blocks of artificial neural networks are artificial . . . . . . . .
Q. The standard font determines the width of the text lines in the . . . . . . . .
Q. The empirical cumulative distribution function can be called as . . . . . . . .
Q. Which level plotting commands generate figures?
Q. Which of the following is the short form of Threshold logical unit?
Q. The binomial distribution is based on . . . . . . . . trial.
Q. Each margin is considered to have a number of . . . . . . . .
Q. Axes, axis labels and titles all appear in the . . . . . . . . of the figure.
Q. The size of the margins is controlled by the argument . . . . . . . .
Q. Which distribution looks like a norm distribution but with very heavy tails?
Q. . . . . . . . . are mostly used for statistical analysis.
Q. Which is the alternative way of defining margins?
Q. Which of the following simple the square root of σ square?
Q. . . . . . . . . is used for main title in graph.
Q. The corresponding R function for the PMF is . . . . . . . .
Q. When µ = ___ and σ = ___ we say that the random variable has a standard normal distribution.
Q. The associated R function is dlnorm(x, meanlog = 0, sdlog = 1) is for . . . . . . . . distribution.
Q. The simplest artificial neuron is the . . . . . . . .
Q. Random variables defined via the . . . . . . . . package.
Q. Which of the following is the symbol of standard normal PDF?
Q. The . . . . . . . . is represented by the location parameter.
Q. In ggplot2, what is the purpose of the theme() function?
Q. What is the role of the facet_wrap() function in ggplot2?
Q. How do you add error bars to a ggplot2 bar plot?
Q. In ggplot2, what function is used to create a line plot?
Q. How do you create a bar plot in ggplot2 for a categorical variable named category and its counts?
Q. What is the purpose of the ggtitle() function in ggplot2?
Q. In ggplot2, what is the purpose of the aes() function?
Q. How do you change the color of all points in a ggplot2 scatter plot to red?
Q. In ggplot2, what function is used to create a scatter plot?
Q. In ggplot2, what is the role of the coord_polar() function?
Q. What is the purpose of the geom_bar(stat = "identity") syntax in ggplot2?
Q. In ggplot2, how do you add a color gradient to a scatter plot based on a numeric variable color_var?
Q. In ggplot2, how do you customize the x-axis labels for a categorical variable category?
Q. In ggplot2, how do you add a smooth line to a scatter plot?
Q. How do you create a histogram in ggplot2 for a numeric variable named variable?
Q. What is the purpose of the labs() function in ggplot2?
Q. How do you create a density plot in ggplot2 for a numeric variable named values?
Q. In ggplot2, how do you customize the appearance of axis ticks?
Q. How do you create a theme with a dark background in ggplot2?
Q. What is the purpose of the scale_y_log10() function in ggplot2?
Q. In ggplot2, how do you create a bar plot with horizontal bars?
Q. How do you create a faceted scatter plot in ggplot2 for two categorical variables facet1 and facet2?
Q. In ggplot2, what does the geom_text() function do?
Q. How do you customize the transparency of points in a ggplot2 scatter plot?
Q. In ggplot2, how do you customize the appearance of the legend title?
Q. What does the theme_minimal() function do in ggplot2?
Q. . . . . . . . . remove all the variables from the workspace.
Q. . . . . . . . . list the variables in the workspace.
Q. Which of the following is Mac menu command?
Q. Which of the following sort a dataframe by the order of the elements in B?
Q. Which of the following statement is another way to get a subset?
Q. which of the following statement chose those objects meeting a logical criterion?
Q. Which of the following statement read a tab or space delimited file?
Q. Which of the following statement can read csv files?
Q. Which of the following code create a n item vector of random normal deviates?
Q. Which of the following code create n samples of size "size" with probability prob from the binomial?
Q. Which of the following produces the variance covariance matrix?
Q. Which of the following finds the maximum value in the vector x, exclude missing values?
Q. Which of the following tests each element of x for membership in y?
Q. Which of the following truncates real x to integers?
Q. Which of the following is uniform distribution?
Q. which of the following statement gives cumulative sum?
Q. Which of the following statement is normal distribution?
Q. Which of the following statement find cases with no missing values?
Q. Which of the following code drop the ith and jth column?
Q. Which of the following code will drop the nth column?
Q. Which of the following will add the title "R language" to the graph?
Q. Which of the following function is used for plotting histogram?
Q. Which of the following sets the size of the outer margins for the graph?
Q. Which of the following finds row sums for each level of a grouping variable?
Q. Which of the following may be used for linear regression?
Q. which of the following statement tells the row with the minimum value for every column?
Q. Which of the following statement finds the maximum for each column?
Q. Which of the following finds row sums for each level of a grouping variable?
Q. Which of the following will reverse the order of values in x?
Q. . . . . . . . . is used to view all packages installed.
Q. . . . . . . . . is used to convert wide data to long data.
Q. . . . . . . . . specializes in converting data from wide to long format.
Q. Which of the following is a library for statistical quality control?
Q. Which of the following is similar to Moment.js?
Q. Which of the following syntax is used to install forecast package?
Q. . . . . . . . . provides needed string operators in R.
Q. . . . . . . . . let's you perform SQL queries on your R data frames.
Q. . . . . . . . . Uses Grieg-Smith method on 2 dimensional spatial data.
Q. . . . . . . . . searches for significant clusters in genetic data.
Q. . . . . . . . . specializes in functions for analytical Customer Relationship Management.
Q. Which of the following is an R package for the exploratory analysis of genetic and genomic data?
Q. . . . . . . . . is used for selecting regression transformations.
Q. Which of the following package combine multi-dimensional arrays?
Q. . . . . . . . . contains tools for Approximate Bayesian Computation (ABC).
Q. . . . . . . . . is used to view packages currently loaded.
Q. . . . . . . . . is used to get library location in R.
Q. What will be the output of the following R code? install.packages(c("devtools", "roxygen2"))
Q. . . . . . . . . uniforms and customizes plots of packages ggplot2, graphics and lattice.
Q. . . . . . . . . is used for the analysis of air pollution data.
Q. Which of the following is used to analyze paleontological time-series?
Q. Which of the following package provide namespace management functions not yet present in base R?
Q. . . . . . . . . performs class prediction based on microarray data and clinical parameters
Q. . . . . . . . . is a package for parsing, applying, and manipulating data cleaning rules
Q. . . . . . . . . finds K best paths in a given graph.
Q. . . . . . . . . is not useful when developing a package since you have to install the package first.
Q. .Rbuildignore prevents files in the . . . . . . . . package from appearing in the bundled package.
Q. files listed in the Rbuildignore are not included in the . . . . . . . .
Q. Which of the following package has temporary files?
Q. . . . . . . . . are built in R so that you get HTML.
Q. A bundled package is a package that's been compressed into a . . . . . . . . file.
Q. An .Rproj file is a . . . . . . . . file.
Q. To start with the new package in RStudio, double-click the pkgname.Rproj file that . . . . . . . .
Q. Which of the following is the formal requirement?
Q. Which of the following is one of the most important aspects of a good package?
Q. The . . . . . . . . number of your package increases with subsequent releases of a package.
Q. . . . . . . . . package version is the sequence of atleast two integers separated by either. or -.
Q. To release a package to . . . . . . . . you must pick a standard license.
Q. Which of the following is called a one-line description of the package?
Q. Which of the following is most important when releasing the package?
Q. DCF is an abbreviation for . . . . . . . .
Q. The job of the . . . . . . . . file is to store important metadata about your package.
Q. Which function is used for loading packages?
Q. Which function is used for seeing currently active libraries?
Q. Which of the following is used to view dataset in a spreadsheet-type format ?
Q. Which of the following builds empirical cumulative distribution function?
Q. Which of the following is lattice command for producing a scatterplot?
Q. Which of the following compute proportions from a contingency table?
Q. which of the following statement make a mosaic plot?
Q. Which of the following groups find the correlation matrix?
Q. Which of the following function cross-tabulate tables using formulas?
Q. Which of the following finds the position of a quantile in a dataset?
Q. Which of the following method make vector of repeated values?
Q. . . . . . . . . are the most commonly documented object.
Q. Which of the following is used to find variance of all values?
Q. Which of the following compute analysis of variance table for fitted model?
Q. Which of the following is lattice command for producing boxplots?
Q. Which of the following is tool for checking normality?
Q. Which of the following determine the least-squares regression line?
Q. Which of the following groups values of a variable into larger bins?
Q. Which of the following is tool for chi-square distributions?
Q. Which of the following lists names of variables in a data.frame?
Q. Which of the following adds marginal sums to an existing table?
Q. . . . . . . . . function carries out a chi-square test.
Q. In practice, Line of best fit or regression line is found when . . . . . . . .
Q. In lm(response ~ terms), terms specification of the form "first*second" is same as . . . . . . . .
Q. Common Metrics which are used to select linear model are . . . . . . . .
Q. What plot(s) are used to view the linear regression?
Q. The purpose of correct.cor is to correct . . . . . . . . in values.
Q. Which of the following gives the summary of values likes mean etc?
Q. Which of the following count the number of good cases when doing pairwise analysis?
Q. Which of the following is used to plot multiple histograms?
Q. Which of the following convert a matrix of phi coefficients to polychoric correlations?
Q. The purpose of fisher.test() is . . . . . . . . test for contingency table.
Q. . . . . . . . . is an incredibly powerful tool for analyzing data.
Q. In syntax of linear model lm(formula,data,..), data refers to . . . . . . . .
Q. Function used for linear regression in R is . . . . . . . .
Q. If Linear regression model perfectly first i.e., train error is zero, then . . . . . . . .
Q. . . . . . . . . regression method is also known as the ordinary least squares estimation.
Q. Analysis of variance in short form is?
Q. Which of the following is preferred for text analytics?
Q. . . . . . . . . is proprietary tool for predictive analytics.
Q. Which of the following contains pre-built predictive tools?
Q. Which of the following involves predicting a categorical response?
Q. What do we do the curvilinear relationship in linear regression?
Q. . . . . . . . . is simplest class of analytics.
Q. What is the role of the summarize() function in dplyr?
Q. In dplyr, what is the purpose of the %>% operator (pipe operator)?
Q. How do you join two data frames based on a common column using dplyr's left_join()?
Q. In dplyr, what does the mutate() function do?
Q. What is the purpose of the distinct() function in dplyr?
Q. What function is used to create a new variable in a dplyr data frame based on existing variables?
Q. In dplyr, what does the arrange() function do?
Q. How do you filter rows in a dplyr data frame based on a specific condition using filter()?
Q. In dplyr, what function is used to select specific columns from a data frame?
Q. In dplyr, how do you calculate the total count of observations in each group using summarize()?
Q. How do you perform an inner join between two data frames in dplyr using inner_join()?
Q. What function is used to filter rows based on multiple conditions in dplyr?
Q. In dplyr, how do you select columns based on a partial name using the select() function?
Q. What does the group_by() function do in dplyr?
Q. In dplyr, how do you select the top 5 rows based on a variable named value in descending order?
Q. How do you count the number of rows in a dplyr data frame?
Q. In dplyr, how do you filter rows where a specific variable is not missing using filter()?
Q. What function is used to rename columns in a dplyr data frame?
Q. In dplyr, what does the slice_sample() function do?
Q. How is the case_when() function used in dplyr?
Q. In dplyr, how do you calculate the cumulative sum of a variable named sales within each group?
Q. What function is used to remove missing values from a dplyr data frame?
Q. In dplyr, how do you select columns that match a specific pattern using the select() function?
Q. How do you calculate the median of a numeric variable named price for each group in dplyr?
Q. What does the rename_all() function do in dplyr?
Q. In dplyr, what does the slice() function do?
Q. How do you select distinct values from a column named category in dplyr using distinct()?
Q. What is the purpose of the ungroup() function in dplyr?
Q. What does the desc() function do in dplyr?
Q. In dplyr, how do you filter rows based on multiple conditions using the AND logic?
Q. How do you count the number of distinct values in a column named category in dplyr?
Q. In dplyr, how do you filter rows where a specific variable is within a range using filter()?
Q. What is the role of the left_join() function in dplyr?
Q. In dplyr, how do you calculate the sum and mean of a numeric variable named quantity for each group?
Q. How do you select columns from a dplyr data frame where the column names start with the letter 'a'?
Q. What is the purpose of the filter() function in dplyr?
Q. In dplyr, what is the purpose of the distinct() function when used with multiple columns?
Q. Point out the wrong statement?
Q. The profiler can be turned off by passing . . . . . . . . to Rprof().
Q. How many functions exist for wrangling the data with dplyr package?
Q. Which of the following creates fluctuation plot?
Q. Which of the following is a plot to investigate the order in which observations were recorded?
Q. What is the purpose of the pivot_longer() function in dplyr?
Q. How do you calculate the percentage of total sales for each category in dplyr?
Q. In dplyr, what is the purpose of the transmute() function?
Q. How do you rename a column named old_name to new_name in dplyr?
Q. Which of the following is an example of a vector graphics device in R?
Q. If I want to save a plot to a PDF file, which of the following is a correct way of doing that?
Q. . . . . . . . . generate aesthetic mappings that describe how variables in the data.
Q. . . . . . . . . uses regex groups instead of a splitting pattern or position.
Q. How many functions exist for tidying the data?
Q. . . . . . . . . modify a ggplot or theme object by adding on new components.
Q. . . . . . . . . display contours of a 3d surface in 2d.
Q. . . . . . . . . function is used to simulate binary random variables.
Q. which of the following functions can be used to finely control the appearance of all lattice plots ?
Q. Point out the correct statement?
Q. Point out the wrong statement?
Q. . . . . . . . . is used to determine what is plotted for each group.
Q. . . . . . . . . is the most common probability distribution to work with.
Q. . . . . . . . . generate random Poisson variates with a given rate.
Q. How many methods exist for normalizing the data?
Q. . . . . . . . . is used for relative sizing of theme elements.
Q. Point out the correct statement?
Q. . . . . . . . . produces box-and-whisker plots.
Q. Which of the following function actually fits the linear model?
Q. Point out the correct statement?
Q. What will be the output of the following R code? > x <- rnorm(10) > summary(x)
Q. Which of the following is a differentiation related aesthetic?
Q. Which of the following draws plot on current graphics device?
Q. . . . . . . . . produces bivariate scatterplots or time-series plots.
Q. What will be the output of the following R code? > pnorm(2)
Q. Which of the following is a principle of analytic graphics?
Q. Point out the correct statement?
Q. Which function opens the screen graphics device for the Mac?
Q. Which of the following is true about the base plotting system?
Q. What will be the output of the following R code? > set.seed(10) > x <- rbinom(100, 1, 0.5) > str(x)
Q. Point out the wrong statement?
Q. . . . . . . . . create a complete ggplot appropriate to a particular data type.
Q. . . . . . . . . produces one-dimensional scatterplots.
Q. . . . . . . . . generate aesthetic mappings from a string.
Q. Which of the following cuts numeric vector into intervals of equal length?
Q. Which of the following draws nothing?
Q. . . . . . . . . generate random Normal variates with a given mean and standard deviation.
Q. R comes with a . . . . . . . . to help you optimize your code and improve its performance.
Q. . . . . . . . . divides the time spend in each function by the total run time
Q. Point out the correct statement?
Q. What is ggplot2 an implementation of?
Q. . . . . . . . . is used when you have variables that form rows instead of columns.
Q. Which of the following evaluate the Normal probability density (with a given mean/SD) at a point?
Q. . . . . . . . . is new package that makes it easy to "tidy" your data.
Q. . . . . . . . . extract a subset of rows from a data frame based on logical conditions.
Q. What is a geom in the ggplot2 system?
Q. Which of the following creates a new ggplot plot from a data frame?
Q. Point out the correct statement?
Q. Spread function is known as . . . . . . . . in spreadsheets.
Q. . . . . . . . . time is time charged to the CPU(s) for the R expression.
Q. Bitmapped file formats can be most useful for . . . . . . . .
Q. Point out the correct statement?
Q. The . . . . . . . . function computes the time (in seconds) needed to execute an expression.
Q. What will be the output of the following R code? > rpois(10, 1)
Q. Which of the following is an example of a valid graphics device in R?
Q. 5 Normal random numbers can be generated with rnorm() by setting seed value to . . . . . . . .
Q. Which of the following code is not profiled?
Q. Point out the correct statement?
Q. Which of the following d takes two columns and spreads them into multiple columns?
Q. Which of the following is discrete state calculator?
Q. . . . . . . . . display a smooth density estimate.
Q. Point out the correct statement?
Q. What does the 'pch' option to par() control?
Q. Logical flag is applicable to which of the following plots?
Q. What will be the output of the following R code? > x <- rnorm(10) > x
Q. Point out the correct statement?
Q. Which of the following is complementary to tidyr?
Q. . . . . . . . . distribution is commonly used to model data that come in the form of counts.
Q. Point out the correct statement?
Q. Which of the following create a set of identity mappings?
Q. Which of the following code represents count with mean of 2?
Q. Point out the correct statement?
Q. Point out the correct statement?
Q. Which of the following merges two variables into one?
Q. . . . . . . . . modifies geom/stat aesthetic defaults for future plots.
Q. Point out the wrong statement?
Q. Point out the wrong statement?
Q. Which of the following statement gives sampling interval?
Q. . . . . . . . . is interval represented by a vertical line, with a point in the middle.
Q. Which of the following function takes multiple columns?
Q. Which of the following function works similar to separate()?
Q. . . . . . . . . is used to create a plot to illustrate patterns of missing values.
Q. . . . . . . . . ensures reproducibility of the sequence of random numbers.
Q. . . . . . . . . is used for translating between qplot and base graphics.
Q. . . . . . . . . describe the type of plot you will produce.
Q. . . . . . . . . evaluate the cumulative distribution function for a Normal distribution.
Q. What is the role of exploratory graphs in data analysis?
Q. In R, what does the repeat loop combined with next do?
Q. What is the role of the next statement in a loop in R?
Q. How is the switch() function different from if-else in R?
Q. In R, what is the purpose of the repeat loop combined with break?
Q. What is the output of the following R code: for (i in 1:5) { if (i %% 2 == 0) { print(i) } }
Q. How do you create a vector containing the first 5 positive even numbers in R using a loop?
Q. What is the purpose of the which() function in R?
Q. How is the repeat loop terminated in R?
Q. In R, what does the if (condition) { code_block } else { code_block } statement do?
Q. How is a do-while loop implemented in R?
Q. What is the output of the following R code: for (i in 1:5) { if (i == 3) next; print(i) }
Q. In R, what is the purpose of the next statement in a loop?
Q. How do you create a loop that prints the squares of numbers from 1 to 10 in R?
Q. In R, how do you create a switch statement with a default case?
Q. What is the output of the following R code: x <- 5; while (x > 0) { print(x); x <- x - 2 }
Q. In R, how do you create an infinite loop?
Q. What does the Sys.sleep(2) function do in R?
Q. How is the for loop different from the while loop in R?
Q. In R, what is the purpose of the ifelse() function?
Q. How do you create a vector containing the first 5 prime numbers in R using a while loop?
Q. The . . . . . . . . for R are the main feature that make it different from the original S language.
Q. What would be the value of following R expression? log(-1)
Q. . . . . . . . . function is same as lapply in R.
Q. Write a function to extract the first name in the string "Mrs. Jake Luther"?
Q. . . . . . . . . is used to break the execution of a loop.
Q. Body of lapply function is?
Q. A function, together with an environment, makes up what is called a . . . . . . . . closure.
Q. Point out the correct statement?
Q. Point out the wrong statement?
Q. Point out the wrong statement?
Q. How is a Data object represented internally in R language?
Q. If the function in a console is.matrix(X) returns true then X can be considered as a . . . . . . . .
Q. Which of the following code skips the first 20 iterations?
Q. R has . . . . . . . . basic indexing operators.
Q. R Commander is used to . . . . . . . . in R.
Q. . . . . . . . . is the easiest method for reshaping the data before analysis.
Q. Which of the following R code will print "Neither"?
Q. What is the command used to store R objects in a file?
Q. Point out the wrong statement?
Q. Point out the correct statement?
Q. Point out the correct statement?
Q. . . . . . . . . loop over a list and evaluate a function on each element.
Q. . . . . . . . . function takes various parameters like formula, data, subset, labels, etc.
Q. Which of the following R code syntax is syntactically valid?
Q. . . . . . . . . function gives an error message if the desired package cannot be loaded.
Q. What will be the output of the following R code? > x <- 1:4 > lapply(x, runif)
Q. What will be the output of the following R code? > x <- 3 > switch(x, 2+2, mean(1:10), rnorm(5))
Q. . . . . . . . . returns TRUE then X can be termed as a matrix data object.
Q. Which of the following is apply function in R?
Q. Which of the following is valid body of split function?
Q. Point out the correct statement?
Q. A programmer builds a . . . . . . . . to avoid repeating the same task or reduce complexity.
Q. Point out the correct statement?
Q. A matrix of scatterplots can be produced using . . . . . . . . function.
Q. How many types of data structures does R language have?
Q. Point out the wrong statement?
Q. Point out the correct statement?
Q. Which function is used to select variables and observations from a given dataset?
Q. Which of the following R code generate a uniform random number?
Q. In the base graphics system, which function is used to add elements to a plot?
Q. The syntax of the repeat loop is . . . . . . . .
Q. Which of the following R code will print "Hello, world!"?
Q. What will be the output of the following R code snippet? > paste("a", "b", sep = ":")
Q. Point out the correct statement?
Q. Point out the correct statement?
Q. Warnings are generated by the . . . . . . . . function.
Q. What will be the output of the following R code? > x <- 3 > switch(6, 2+2, mean(1:10), rnorm(5))
Q. What will be the value of following R expression?
Q. Which of the following language supports lexical scoping?
Q. Write the syntax to set the path of the current working directory in R environment?
Q. What will be the output of the following R code snippet? > lm <- function(x) { x * x } > lm
Q. Which of the following R code generate a sequence of integers from 1 to 10?
Q. Functions are defined using the . . . . . . . . directive and are stored as R objects.
Q. Which of the following is multivariate version of lapply?
Q. . . . . . . . . package is used to speed up data frame management code.
Q. Which of the following R code snippet stops loop after 20 iterations?
Q. What will be the class of the vector if you concatenate a number and a character?
Q. Which of the following should be preferred for evaluation from list of alternatives?
Q. Point out the wrong statement?
Q. R has . . . . . . . . statements that provide explicit looping.
Q. R uses . . . . . . . . scoping6 0 or static scoping.
Q. The recover() function will first print out the function call stack when an . . . . . . . . occurs.
Q. . . . . . . . . function is used in applying a function each level of factors.
Q. . . . . . . . . function is used to apply an expression for a given dataset.
Q. Which function is used to create a histogram for visualisation in R programming language?
Q. The . . . . . . . . function returns a list of all the formal arguments of a function.
Q. Which function is more verbose?
Q. lappy functions takes . . . . . . . . arguments in R language.
Q. The . . . . . . . . function is used to plot negative likelihood.
Q. How missing values and impossible values are represented in R language?
Q. Point out the correct statement?
Q. . . . . . . . . function will measure the probability of the binary response variable in R language.
Q. CRAN package ecosystem has more than . . . . . . . . packages.
Q. What will be the output of the following R code snippet? > paste("a", "b", se = ":")
Q. The line of code in R language should begin with a . . . . . . . .
Q. What will be the output of the following R code snippet? > f <- function(a, b) { + a^2 + } > f(2)
Q. What will be the class of the vector if you concatenate a number and NA?
Q. Which of the following is valid syntax for if else statement in R?
Q. . . . . . . . . require you to pass a function whose argument is a vector of parameters.
Q. The syntax of the for loop is?
Q. . . . . . . . . applies a function over the margins of an array.
Q. Which function calculates the count of each category of a categorical variable?
Q. What are the different types of sorting algorithms available in R language?
Q. . . . . . . . . will produce a sequential vector c( (1,2,3,4,5,6,7,8,9)).
Q. What will be the output of runif()?
Q. . . . . . . . . initiates an infinite loop right from the start.
Q. Which of the variable in the following R code is variable? > f <- function(x, y) { + x^2 + y / z + }
Q. . . . . . . . . is used to apply a function over subsets of a vector.
Q. Which function helps you perform sorting in R language?
Q. How will you check if an element is present in a vector?
Q. Point out the correct statement?
Q. Which of the following is primary tool for debugging?
Q. Which function is difficult to implement?
Q. . . . . . . . . is the best way for communicating the results of data analysis using the R language.
Q. . . . . . . . . measures the probability of the binary response variable in R language.
Q. . . . . . . . . variables are categorical variables which can hold either string or numeric values.
Q. What is the memory limit in R for 32 bit system?
Q. Which of the following code will print NULL?
Q. What is the memory limit in R for 64 bit system?
Q. . . . . . . . . can be used for storing the data for long-term.
Q. . . . . . . . . function can be used to select the random sample of size 'n' from a huge dataset.
Q. What will be the output of the following R code? > x <- 3 > switch(2, 2+2, mean(1:10), rnorm(5))
Q. How do you create log linear models in R language?
Q. Point out the correct statement?
Q. What will be the output of the following R expression? > log(-2.3)
Q. You can check to see whether an R object is NULL with the . . . . . . . . function.
Q. debug() flags a function for . . . . . . . . mode in R mode.
Q. Point out the wrong statement?
Q. Point out the correct statement?
Q. Which package in R supports the exploratory analysis of genomic data?
Q. Which package can be integrated with dplyr for large fast tables?
Q. Point out the wrong statement?
Q. Which of the following R syntax is correct for while loop?
Q. What will be the output of log (-5.8) when executed on R console?
Q. . . . . . . . . allows you to insert debugging code into a function a specific places
Q. . . . . . . . . prints out the function call stack after an error occurs.
Q. Which of the following statement can be used to explicitly control looping?
Q. Point out the correct statement?
Q. R code can be tested using . . . . . . . . package.
Q. If a programmer wants the output to be a list then . . . . . . . . function is used.
Q. . . . . . . . . function is used for reading the .csv file in R language.
Q. Point out the correct statement?
Q. What are the data types in R on which binary operators can be applied?
Q. Point out the wrong statement?
Q. . . . . . . . . can contain heterogeneous inputs.
Q. Which function basically finds the intersection between two different sets of data?
Q. . . . . . . . . is used to skip an iteration of a loop.
Q. Point out the wrong statement?
Q. The only environment without a parent is the . . . . . . . . environment.
Q. What is the correct way to access the second element of a vector named my_vector in R?
Q. In R, how do you create a named list with elements "apple", "orange", and "banana"?
Q. What is the purpose of the data.frame() function in R?
Q. How do you create a factor in R named color with levels "red", "green", and "blue"?
Q. In R, how is a matrix initialized with values 1 to 9 arranged in three rows?
Q. How is a vector different from a list in R?
Q. What is the primary data structure used for storing tabular data in R?
Q. In R, how do you create a list named my_list with three elements: 1, "hello", and TRUE?
Q. What does the matrix() function create in R?
Q. Which data structure in R is used to store an ordered collection of elements?
Q. In R, how is a factor converted to a numeric vector using the as.numeric() function?
Q. What is the result of length(unique(c(1, 2, 3, 1, 2))) in R?
Q. In R, how do you create a data frame named my_df with columns Name and Age?
Q. What does the str() function do in R?
Q. How do you create a character vector with the elements "apple", "orange", and "banana" in R?
Q. In R, how do you add a new column named Height to a data frame named my_data?
Q. How is a data frame column named Age selected in R?
Q. What function is used to convert a factor to a character vector in R?
Q. In R, what is the purpose of the names() function?
Q. How do you check the structure of a data frame named my_data in R?
Q. In R, what does the slice() function do?
Q. What function is used to concatenate two vectors in R?
Q. In R, what is the purpose of the subset() function?
Q. How is a character string converted to a numeric vector in R using the as.numeric() function?
Q. In R, what does the unlist() function do?
Q. How do you remove a column named Income from a data frame named my_data in R?
Q. In R, what is the purpose of the table() function?
Q. How do you extract the first row of a data frame named my_data in R?
Q. What will be the output of the following R code? > x <- 1:4 > y <- 6:9 > z <- x + y > z
Q. load() is used for . . . . . . . .
Q. If we want to save individual R objects to a file, we use the . . . . . . . . function.
Q. Main way to read the data back in (parsing it) using the function.
Q. What will be the output of the following R code? > x <- matrix(1:6, 2, 3) > x[1, ]
Q. Point out the wrong statement?
Q. Which of the following code represents internal representation of a Date object?
Q. What will be the output of the following R code? > x <- 1:4 > x > 2
Q. Which of the following is used for reading in saved workspaces?
Q. What will be the output of the following R code? > x <- Sys.time() > class(x)
Q. Point out the correct statement?
Q. Which of the following function is identical to read .table?
Q. . . . . . . . . is used for outputting a textual representation of an R object.
Q. Point out the wrong statement?
Q. Columns can be arranged in descending order too by using the special . . . . . . . . operator.
Q. Point out the wrong statement?
Q. The dplyr package can be installed from GitHub using the . . . . . . . . package.
Q. Which of the following R code creates a connection to 'foo.txt'?
Q. .rda extension used when saving data with function . . . . . . . .
Q. Connections to text files can be created with the . . . . . . . . function.
Q. . . . . . . . . add new variables/columns or transform existing variables.
Q. What will be the output of the following R code? > x <- as.Date("1970-01-01") > x
Q. The . . . . . . . . operator is used to connect multiple verb actions together into a pipeline.
Q. Which of the following function is similar to summarize?
Q. dput() output is in the form of . . . . . . . .
Q. There is an SQL interface for relational databases via the . . . . . . . . package.
Q. What will be the output of the following R code? > p <- as.POSIXlt(x) > names(unclass(p)) > p$wday
Q. What will be the output of the following R code? > x <- list(foo = 1:4, bar = 0.6) > x
Q. Which of the following opens connection to gz-compressed text file?
Q. Multiple objects can be de parsed at once and read back using function . . . . . . . .
Q. What will be the output of the following R code? > y <- data.frame(a = 1, b = "a") > dput(y)
Q. . . . . . . . . opens a connection to a file compressed with gzip.
Q. Which of the following statement will load the objects to the file named "mydata.RData"?
Q. Point out the correct statement?
Q. Point out the wrong statement?
Q. Point out the correct statement?
Q. Which of the following code would read 100 rows?
Q. Which of the following object is masked from 'package: stats'?
Q. Multiple objects can be de parsed at once using the . . . . . . . . function.
Q. If you have a lot of objects that you want to save to a file, we use . . . . . . . . function.
Q. Point out the correct statement?
Q. Individual R objects can be saved to a file using the . . . . . . . . function.
Q. What will be the output of the following R code? > x <- matrix(1:6, 2, 3) > x[1, 2]
Q. Point out the wrong statement?
Q. Which of the following return a subset of the columns of a data frame?
Q. Point out the correct statement?
Q. .RData extension used when we save data using the functions . . . . . . . .
Q. One way to pass data around is by de parsing the R object with . . . . . . . .
Q. Point out the wrong statement?
Q. Which of the following statement would read file "foo.txt"?
Q. . . . . . . . . extract a subset of rows from a dataframe based on logical conditions.
Q. Point out the wrong statement?
Q. dplyr can be integrated with the . . . . . . . . package for large fast tables.
Q. Point out the correct statement?
Q. The . . . . . . . . operator allows you to string operations in a left-to-right fashion.
Q. What will be the output of the following R code? > x <- matrix(1:6, 2, 3) > x[1, , drop = FALSE]
Q. readlines is used for . . . . . . . .
Q. Which of the following argument denotes if the file has a header line?
Q. The dplyr package can be installed from CRAN using . . . . . . . .
Q. Point out the correct statement?
Q. What will be the output of the following R code? > x <- 1:4 > y <- 6:9 > x/y
Q. We can dump() R objects to a file by passing . . . . . . . .
Q. Point out the wrong statement?
Q. Which of the following function gives the day of the week?
Q. What will be the output of the following R code? > x <- list(aardvark = 1:5) > x$a
Q. In R, what is the purpose of the paste() function?
Q. How is the length of a vector determined in R?
Q. Which of the following is a valid way to create a numeric vector in R?
Q. In R, how is a comment denoted?
Q. What does the factor data type represent in R?
Q. In R, what is the primary data structure to store a sequence of elements of the same type?
Q. What is the purpose of the seq() function in R?
Q. In R, how is a variable assigned a value?
Q. What does the function print() do in R?
Q. What symbol is used for assignment in R?
Q. In R, what does the function tolower("WORLD") return?
Q. How is the maximum value of a numeric vector calculated in R using the max() function?
Q. What is the result of sum(1:5) in R?
Q. In R, what does the function toupper("hello") return?
Q. What function is used to calculate the square root of a number in R?
Q. What does the scan() function do in R?
Q. In R, how do you round a numeric value to the nearest integer using the round() function?
Q. What is the output of 5 %% 2 in R?
Q. How do you check the data type of a variable in R?
Q. What is the role of the rep() function in R?
Q. How do you create a vector of characters in R?
Q. What is the purpose of the unique() function in R?
Q. In R, what does the abs() function do?
Q. How do you create a vector of logical values in R?
Q. What does the rev() function do in R?
Q. In R, how is the minimum value of a numeric vector calculated using the min() function?
Q. How do you calculate the mean of a numeric vector in R?
Q. What does the sort() function do in R?
Q. In R, how do you create a sequence of even numbers from 2 to 10?
Q. What is the purpose of the length() function in R?
Q. What will be the output of the following R code? > m <- matrix(nrow = 2, ncol = 3) > dim(m)
Q. Which dimension corresponds to the explanatory variables collected for each species?
Q. Lists can be coerced with which function?
Q. What should we use to access elements with a value greater than five?
Q. What will be the output of the following R code? > m <- 1:10 > m
Q. What will be the output of the following R code? x <- c("a", "b", "c") > as.numeric(x)
Q. An ordered factor is used to represent an . . . . . . . .
Q. Decimal values are referred as . . . . . . . . data types in R.
Q. What will be the output of the following R code? > x <- 1:3 > y <- 10:12 > rbind(x, y)
Q. . . . . . . . .are Data frames which contain lists of homogeneous data in a tabular format.
Q. All columns in a matrix must have the same mode and the . . . . . . . . length.
Q. Data frames can have additional attributes such as . . . . . . . .
Q. The . . . . . . . . function returns a list of densities (y) corresponding to bin values (x).
Q. An ordered collection of objects or components are called . . . . . . . .
Q. How can we access the first component of the list?
Q. Which of the following code constructs vector of length 11?
Q. Which of the following statement is invalid?
Q. What will be the output of the following R code? > x <- 1:3 > y <- 10:12 > cbind(x, y)
Q. What will be the output of the following R code? > sqrt(-17)
Q. Which of the following is a 3-dimensional dataset?
Q. Which of the following statement changes column name to h and f?
Q. Which function replicates elements of vectors?
Q. vectors can be one of two types namely atomic vectors and . . . . . . . .
Q. To bind a row onto an already existing matrix, the . . . . . . . . function can be used.
Q. Point out the correct statement?
Q. What will be the output of the following R code? > x <- vector("list", length = 5) > x
Q. Which function takes a dim attribute which creates the required number of dimensions?
Q. Which of the following is invalid assignment?
Q. What will be the output of the following R code? > m <- matrix(1:6, nrow = 2, ncol = 3) > m
Q. Which is the basic data structure of R containing the same type of data?
Q. Using the . . . . . . . . vector, we create a species factor and bind it to the columns of iris.df.
Q. To extract a sublist, we use . . . . . . . . brackets.
Q. Numbers in R are generally treated as . . . . . . . . precision real numbers.
Q. Locator function gives output as . . . . . . . .
Q. Point out the wrong statement?
Q. Point out the correct statement?
Q. R has how many atomic classes of objects?
Q. What will be the output of the following R code? > x <- 6 > class(x)
Q. By what function we can create data frames?
Q. Which function is used to combine the elements into a vector?
Q. A . . . . . . . . is a two-dimensional rectangular data set.
Q. A data frame is a special type of list where every element of the list has . . . . . . . . length.
Q. Point out the correct statement?
Q. Which of the following is used for reading tabular data?
Q. What will be the output of the following R code? > x <- list(1, "a", TRUE, 1 + 4i) > x
Q. Which are indexed by either row or column using a specific name or number?
Q. Which function is used to enter in data at the terminal?
Q. First component of the list can be accessed by . . . . . . . .
Q. Factors are created using the . . . . . . . . function.
Q. R objects can have attributes, which are like . . . . . . . . for the object.
Q. Joining two lists can be achieved either using the . . . . . . . . function.
Q. Lists can be created using the . . . . . . . . function.
Q. What will be the output of the following R code? > x <- c("a", "b", "c") > as.logical(x)
Q. Which is more general than a matrix, in that different columns can have different modes?
Q. Data frames can be converted to a matrix by calling data . . . . . . . .
Q. A . . . . . . . . is an R-object which can contain many different types of elements inside it.
Q. Accessing elements is achieved through a process called . . . . . . . .
Q. What will be the output of the following R code? > x <- c(1, 2, NaN, NA, 4) > is.na(x)
Q. Point out the correct statement?
Q. . . . . . . . . provides optional labels with the columns and rows.
Q. What is the simplest way of creating the vector?
Q. Which of the following code snippet will create a vector with NAs in it?
Q. Density function gives output as . . . . . . . .
Q. Point out the correct statement?
Q. Find the following type of vector? a <- c(1,2,5.3,6,-2,4)
Q. What will be the output of the following R code? > x <- 1:3 > names(x)
Q. The length of a list is . . . . . . . . to the number of components in that list.
Q. Which function can be used to determine the names assigned to a list?
Q. Factors are the r-objects which are created using a . . . . . . . .
Q. Point out the correct statement?
Q. Which of the following is used for generating sequences?
Q. Which of the following is a valid assignment?
Q. Which of the following is valid assignment?
Q. Which function gives the list as output?
Q. The data type of the R-object becomes the data type of the . . . . . . . .
Q. . . . . . . . . are similar to matrices but can have more than two dimensions.
Q. Attributes of an object (if any) can be accessed using the . . . . . . . . function.
Q. In R using the function, . . . . . . . . one can check the data type of vector.
Q. Point out the correct statement?
Q. The . . . . . . . . function creates a regular sequence of values to form a vector.
Q. Which of the following can be considered as object attribute?
Q. Point out the correct statement?
Q. What will be the output of the following R code? > x <- 0:6 > as.logical(x)
Q. What will be the output of the following R code? > x <- vector("numeric", length = 10) > x
Q. The first component can be accessed using . . . . . . . . operator.
Q. If you explicitly want an integer, you need to specify the . . . . . . . . suffix.
Q. Point out the wrong statement?
Q. Which of the following is invalid assignment?
Q. How is a data frame created in R?
Q. Which of the following is a valid R data type?
Q. What is the purpose of the function Sys.Date() in R?
Q. In R, how is a matrix created using the matrix() function?
Q. What does RStudio provide for R programming?
Q. Which of the following is a correct variable name in R?
Q. What does the function install.packages() do in R?
Q. How is a comment denoted in R?
Q. In R, what does the function length() do?
Q. What is the primary purpose of R programming language?
Q. In R, what is the purpose of the rep() function?
Q. Which operator is used for element-wise multiplication in R?
Q. What is the purpose of the R function rnorm(100, mean = 0, sd = 1)?
Q. How do you check the class of an object in R?
Q. What does the R function seq(1, 10, by = 2) produce?
Q. What does the function summary() do in R?
Q. In R, what does the function help.start() do?
Q. Which of the following operators is used for exponentiation in R?
Q. How do you assign a value to a variable in R?
Q. What does the R function read.csv() do?
Q. In R, how is the mean of a numeric vector calculated using the mean() function?
Q. What is the purpose of the search() function in R?
Q. How is the data frame column Age selected in R?
Q. What does the R function table() do?
Q. How is a character string defined in R?
Q. What does the lengths() function do in R?
Q. In R, how do you access the help documentation for a specific function, e.g., mean()?
Q. How do you install a package in R from the CRAN repository using the install.packages() function?
Q. What does the R function median() compute?
Q. How is a list created in R?
Q. . . . . . . . . function is used to watch for all available packages in library.
Q. How to install for a package and all of the other packages on which for depends?
Q. What will be the output of the following R function? paste("Everybody", "is", “a” , "warrior")
Q. . . . . . . . . provides a point-and-click interface to many basic statistic problems.
Q. What is the mode of 'a' in the following R code? a <- c(1,” a”, FALSE)
Q. In 2004, . . . . . . . . purchased the S language from Lucent for $2 million.
Q. R is published under the . . . . . . . . General Public License version.
Q. What will be the output of the following R code? x <- c(3, 7, NA, 4, 7) y <- c(5, NA, 1, 2, 2) x + y
Q. What is the class defined by the following R code? y<-c(2,”t”)
Q. Which of the following is "Recommended" package in R?
Q. What will be the output of the following R function? Sys.Date()
Q. Which language is best for the statistical environment?
Q. In R language, a vector is defined that it can only contain objects of the . . . . . . . .
Q. R has many functions regarding . . . . . . . .
Q. Files containing R scripts ends with extension . . . . . . . .
Q. What will be the output of the following R code? x<- c (“a”,” b”) as.numeric(x)
Q. What is the function to set column names for a matrix?
Q. Which of the following is a base package for R language?
Q. The R-help and . . . . . . . . mailing lists have been highly active for over a decade now.
Q. Point out the wrong statement?
Q. Command lines entered at the console are limited to about . . . . . . . . bytes.
Q. R functionality is divided into a number of . . . . . . . .
Q. What is the output of getOption("defaultPackages") in R studio?
Q. The copyright for the primary source code for R is held by the . . . . . . . . Foundation.
Q. How can we define 'infinity' in R language?
Q. Which of the following statement is alternative to . . . . . . . . ?solve
Q. What is the class defined in the following R code? y<-c(FALSE,2)
Q. What will be the output of the following R code? a <- (“a” , “b”) mode(a)
Q. Which of the following command is used to print an object "x" in R?
Q. Point out the wrong statement?
Q. What is the mode of b in the following R code? b <- c(TRUE, TRUE, 1)
Q. What will be the output of the following R code? x <- (“a”, “b”) as.logical(x)
Q. Point out the wrong statement?
Q. Functionality of R is divided into a number of . . . . . . . .
Q. In the expression x <- 4 in R, what is the class of 'x' as determined by the `class()' function?
Q. Which of the following packages does not contain in "base" R system?
Q. Is It possible to inspect the source code of R?
Q. Which of the following describes R language?
Q. The entities that R creates and manipulates are known as . . . . . . . .
Q. Which of the following is a "Recommended" package in R?
Q. Which of the following is used for Statistical analysis in R language?
Q. . . . . . . . . will divert all subsequent output from the console to an external file.
Q. What is output of getOption("defaultPackages") in R studio?
Q. The open source . . . . . . . . software is available for Unix, Linux, and Windows platforms.
Q. Which of the following is default prompt for UNIX environment?
Q. The primary source code copyright for R is held by the . . . . . . . .
Q. Which of the following operator is used to create integer sequences?
Q. Matrices can be created by row-binding with the help of the following function.
Q. You can download "base" R system from . . . . . . . .
Q. Collection of objects currently stored in R is called as . . . . . . . .
Q. What will be the output of the following R code? > x <- 1 > print(x)
Q. Elementary commands in R consist of either . . . . . . . . or assignments.
Q. Point out the wrong statement?
Q. What will be the output of the following R code? options(digits = 16) 20/6
Q. What will be the output of the following R function? d <- date() d
Q. Full Form of GUI is . . . . . . . .
Q. A list is represented as a vector but can contain objects of . . . . . . . .
Q. What will be the output of the following R function? cat("Everybody", "is", "a", “warrior”,sep="*")
Q. In . . . . . . . . Insightful purchased the S language from Lucent for $2 million.
Q. In which year R-Core group was formed?
Q. Which programming language is more based on the results?
Q. Modification in Dundas BI is done . . . . . . . .
Q. What is the meaning of "<-"?
Q. R language is a dialect of which of the following languages?
Q. Advanced users can write . . . . . . . . code to manipulate R objects directly.
Q. Why learning R becomes tough?
Q. How do you create an integer suppose 5 in R?
Q. R files has an extension . . . . . . . .
Q. What are the typeof(x) and mode(x) in the following R syntax? x<-1:3
Q. . . . . . . . . hosts many add-on packages that can be used to extend the functionality of R.
Q. What will be the output of the following R program? y <- 0:5 vector(y) y[3]
Q. At higher level one "limitation" of R is that its functionality is based on . . . . . . . .
Q. Version of R released to the public in 2000 was . . . . . . . .
Q. What will be the output of the following R function? Sys.time()
Q. Which Package contains most fundamental functions to run R?
Q. What will be the output of the following R program? r<-0:10 r[2]
Q. A single element of a character vector is referred as . . . . . . . .
Q. The dimension attribute is itself an integer vector of length . . . . . . . .
Q. What will be the output of the following R function? d <- diag(5, nrow=2, ncol=2) d
Q. What is the length of b? b <- 2:7
Q. How many atomic vector types does R have?
Q. R language has superficial similarity with . . . . . . . .
Q. In which IDE we can interact with R?
Q. Which one of the following is not a basic datatype?
Q. The most convenient way to use R is at a graphics workstation running a . . . . . . . . system.
Q. Point out the WRONG statement?
Q. What will be the output of the following R code? y <- c(TRUE, 2)
Q. Advanced programmers can write . . . . . . . . code to manipulate R objects.
Q. Dataframes can be converted into a matrix by calling the following function data . . . . . . . .
Q. What is the function used to test objects (returns a logical operator) if they are NaN?
Q. They primary R system is available from the . . . . . . . .
Q. . . . . . . . . programming language is a dialect of S.
Q. Point out the wrong statement?
Q. R is mostly used in . . . . . . . .
Q. What is the function to set row names for a data frame?
Q. What is the meaning of the following R function? print( sqrt(2) )
Q. What will be the output of the following R function? nchar()
Q. Which of the following will start the R program?
Q. Point out the wrong statement?
Q. Why is it needed for R studio to update regularly?
Q. Scripts will run on . . . . . . . .
Q. Which of the following is not an object of R?
Q. A . . . . . . . . is a variable that holds one value at a time.
Q. Finally, in . . . . . . . . R version 1.0.0 was released to the public.
Q. Point out the wrong statement?
Q. R runs on the . . . . . . . . operating system.
Q. Which of the R following code is example of explicit printing?
Q. The longer programs are called . . . . . . . .
Q. Which is simpler for statistical programming?
Q. What is the function used to test objects (returns a logical operator) if they are NA?
Q. How can we define 'undefined value' in R language?
Q. Which function is used to automatically vectorize?
Q. Which of the following function is invalid.
Q. With Text Filters _____ operation is not allowed.
Q. With Numeric Filters ______ operation is not allowed.
Q. Gridlines are not allowed for ___ type of graphs.
Q. _____ graph allows only one range of values.
Q. To make data interesting, attractive and easy to read and evaluate, we use ______
Q. Excel macros can be edited using _______ editor.
Q. By default extension for template file is _______
Q. We can add constraints while using __________ command.
Q. If cell A1 contains a number 100, then what will be the answer of =IF(A1< 200, A1+10, A1-10)?
Q. Which of the following is an invalid arithmetic operator?
Q. Excel formula cannot start with ____
Q. What will be the answer of =MID(“COMMERCE”,3,2)?
Q. What will be the answer of =PROPER(“verus d’sa”)?
Q. If cell B1 contains text MUMBAI then what will be the answer of =LOWER(B1)?
Q. What will be the answer of =YEAR(32)?
Q. What will be the answer of =DAY(32)?
Q. What will be the answer of =MONTH(32)?
Q. What will be the answer of =TIMEVALUE(“12:00 PM”)?
Q. What will be the answer of =DATEVALUE(“1-Feb-1900”)?
Q. What will be the answer of =DAYS360(“1-Feb-2020”, “1-Mar-2020”)?
Q. Cell A2 contains a text COMPUTER. What will be the answer of =LEFT(A2, 3)?
Q. Cell A2 contains a text COMPUTER. What will be the answer of =LEFT(“A2”)?
Q. Cell A2 contains a text COMPUTER. What will be the answer of =LEFT(A2)?
Q. Record Macro option is available under ____ Ribbon/Menu.
Q. Solver Option is available under ____ Ribbon/Menu.
Q. Number of changing cells for a Goal Seek is limited to ______
Q. Number of changing cells for a Scenario is limited to ____
Q. Goal Seek Option is available under ____ Ribbon/Menu.
Q. Charts are available under _______ Ribbon/Menu.
Q. Select odd man out from the following graph types.
Q. Axis Title is not allowed in this type of graphs.
Q. Which of the following is not a valid chart type in Excel.
Q. To count number of cells that contains numbers, we use _____.
Q. To count non blank cells, we use _____.
Q. To search a value in the first row of a given range, we use _______.
Q. To find number of characters in a string we use _____
Q. To convert uppercase alphabets to lowercase we use _____
Q. Answer of =DAYS360(“31-Dec-2020”, “1-Jan-2020”) will be ________
Q. TODAY( ) returns current ______
Q. Answer of =TIMEVALUE(“6:00 PM”) will be ________
Q. Answer of =YEAR(“15-Aug-20”) will be
Q. Answer of =DAYS360(“1-Jan-2020”, “31-Dec-2020”) will be ________
Q. 15-August-2020 was Saturday. Answer of =YEAR(“15-August-2020”) will be ________
Q. 15-August-2020 was Saturday. Answer of =MONTH(“15-August-2020”) will be ________
Q. 15-August-2020 was Saturday. Answer of =WEEKDAY(“15-August-2020”) will be_____
Q. When does Exceptions in Java arises in code sequence?
Q. When is a finally {} block executed?
Q. A message string is returned by which method of an Exception object?
Q. Which of the following statements is true?
Q. Which of the following is an exception thrown by the methods of the class String?
Q. What can a method do with a checked exception?
Q. Which of the following statements is NOT true about creating your own exceptions?
Q. How many finally blocks can there be in a try/catch structure?
Q. The class RuntimeException is the superclass of which of the following classes?
Q. What is different between a Java applet and a Java application?
Q. If a thread is to be declared as a daemon thread, it must be declared before
Q. Which of the following statements are incorrect?
Q. Which of these can be overloaded?
Q. What is garbage collection in the context of Java?
Q. Which package consist an applet class?
Q. Which of these packages contains all the classes and methods required for event handling in Java?
Q. Java supports input/output of data through the classes included in the _______ package:
Q. Which of this package is used for all the text related modifications?
Q. How many kinds of classes can be used in Java RMI?
Q. Through the design mode of a builder tool, we use ___ or ____ to customize the bean.
Q. How do you change the current layout manager for a container?
Q. Which command disassembles a class file
Q. What is a listener in context to event handling?
Q. Which of these methods are used to register a mouse motion listener?
Q. Which of these packages contains all the classes and methods required for even handling in Java?
Q. If a negative value is used for an array index, ____.
Q. For the interface WindowListener that contains more than one method, Java provides the class ____.
Q. The method toString() is a public member of the class _____________.
Q. The classes Reader and Writer are derived from the class _________.
Q. In which package is the class Vector located?
Q. Which method would you most likely use to add an element to an end of a vector?
Q. Which of the following is correct way of implementing an interface salary by class manager?
Q. Which is true about an anonymous inner class?
Q. What garbage collection in the context of java?
Q. ________ is the mechanism that binds together the code and the data.
Q. Keyword _____ is always a reference to the object.
Q. __________ is a special member function.
Q. The String is defined in _______ namespace.
Q. In java a _______ is a sequence of characters.
Q. Java programs perform I/O through _______.
Q. Which of these access specifiers can be used for an interface?.
Q. In java thread to thread communication is called _____.
Q. ______ is at the top of the exception class hierarchy.
Q. An exception is an __________ condition that arises in a code.
Q. One interface can inherit another by use of the keyword _____.
Q. Using the keyword interface you can fully abstract a _________.
Q. Which of the following denotes a javadoc comment?
Q. Which exception is thrown by the read () method of Input Stream class?
Q. Which of these operators can skip evaluating right hand operand?.
Q. What is the output of relational operators?.
Q. ________ statement is valid for array declaration.
Q. A package is a collection of ______.
Q. ________ is valid for if statement?
Q. _________ Operators are overloaded for string objects?
Q. What will be result of expression 9 | 9?
Q. What will be the result of the expression 13 & 25?
Q. A ____ class may not have any abstract method.
Q. A _______ object cannot be modified after it is created.
Q. Every method of a ________ is implicitly final.
Q. _______ is passed to a method by use of call-by-reference.
Q. ______ must be the first non comment statement in the file.
Q. ______ can appear anywhere in the body of a java method.
Q. Object is a _______ entity.
Q. Object is an _________ of a class.
Q. Literals in java must be preceded by which of these?
Q. What is the range of the char type?
Q. Which of the following is not a primitive data types?
Q. Which of these are selection statements in Java?
Q. Which of these selection statements test only for equality?
Q. The ActionListener interface is used for handling action events,For example,it's used by a
Q. If not assigned a value, a variable of type char has the following default value:
Q. Which of the following method is not belonging to the String class?
Q. Which of the following are not the wrapper classes?
Q. Which of the following classes are not available in the java.lang package?
Q. Which of the following may contain a menu bar?
Q. How do you change the current layout manager for a container?
Q. How do you indicate where a component will be positioned using Flowlayout?
Q. Which layout should you use to organize the components of a container in a tabular~~~form?
Q. The .dot operator connects the following two entities _____.
Q. Before doing garbage collection , _____ method is called .
Q. When method is overridden , then by subclass object which class method is called _____.
Q. When a class is declared as final , then ____.
Q. ___ keyword is used to refer to the current object.
Q. ____ are automatically called when an object is destroyed.
Q. super keyword can be used to _____.
Q. Which of these keywords is used by a class to use an interface defined previously?.
Q. The concept of derived classes is involved in _________.
Q. What code would you use to construct a 24-point bold serif font?
Q. What is polymorphism in Java? .
Q. Which of the following statements about the try{} block in Java is false?
Q. Which of these is not a correct statement?.
Q. Which of these keywords are used to define an abstract class?.
Q. Which of the following declares an abstract method in an abstract Java class?
Q. Which of the following is correct way of importing an entire package named as pkg?.
Q. Which of these is a mechanism for naming and visibility control of a class and its content?.
Q. How do you create a Reader object from an InputStream object?
Q. Which of the following statements are true?
Q. What is the default return type to main() __________.
Q. Which of the following will output -4.0?
Q. Which of the following are true?
Q. Which of the following are true about the Error and Exception classes?
Q. Which of these keywords is used to define packages in Java?,
Q. Which of the following classes is used to perform basic console I/O?
Q. Which of the following methods are methods of the String class?
Q. Which of the following is not a wrapper class?
Q. An interface contains __________ methods.
Q. What is an example of polymorphism?
Q. Which of these data tupe can be used for a method having a return statement in it?.
Q. What is the value of a [3] as the result of the following array declaration?
Q. What is garbage collection in the context of Java?
Q. What is byte code in the context of Java?
Q. Graphics object can only be drawn on _________.
Q. Which of these class is used to read from byte array?.
Q. To compare the contents of two objects ______ method is used.
Q. The capacity if StringBuffer is defined as _________.
Q. The wrapper classes are defined in _________ packages.
Q. Which of these classes are used by character streams for input and output operations?.
Q. At any one instance of time _____ threads will be in running state.
Q. When a thread is created using new operator, the thread is in _____ state.
Q. Threads can be created by implementing ________ interface.
Q. Threads can be created by extending _________ class.
Q. When several tasks are handled by a single CPU, it is called _________.
Q. Exception that is identified during compile time is called ______ exception.
Q. Which of these keywords is not a part of exception handling?.
Q. User defined exception can be created using _________ class.
Q. The default package that is implicitly called in a java program is _________.
Q. Package statement helps to create many classes to have ______ name.
Q. A class having an abstract method is to be declared as _______.
Q. A method without the body is called ________ method.
Q. Methods having same name, same type signature are called _____ methods.
Q. Methods having same name and differ type signature are called _____methods.
Q. String constants are said to be_____ of string class.
Q. Class is considered ________ of an object and instance.
Q. A special type of method that is used to initialize an object is called________.
Q. The variable defined in class is called ________ variable.
Q. Which of these class is used to create an object whose character sequence is mutable?.
Q. _________ operator is used to create an array.
Q. Which of these class holds a collection of static methods and variables?.
Q. A java program must contain a______ method.
Q. A java program can be run in any computer running under any ________.
Q. Java programs are _________ independent.
Q. _______ method is a thread mechanism.
Q. ____ operators which concatenates two strings.
Q. __________ is used for initialize the value to the String object.
Q. The _______ supports several constructors to create an empty String.
Q. _______ can be declared inside interface declarations.
Q. ______ statement in java is multiway branch statement.
Q. Multidimensional arrays are actually __________.
Q. The ________ statement is used to terminate a statement sequence.
Q. The ________ connects classes and objects.
Q. ______ must be the first statement executed inside a subclass Constructor.
Q. Variable declared as _________ do not occupy memory on a per instance basis.
Q. Once an interface has been defined, one or more _____ can implement that interface.
Q. Wrapper class is a wrapper around a _______ data type.
Q. ______ is a small unit of a process.
Q. Java is designed for _______ environment of the internet.
Q. The dot operator is used to access the instance ______.
Q. Package is a collection of __________.
Q. Which of the following is not a class?
Q. The ______ refers to the validity of a variable.
Q. Single character in java is called _____literals.
Q. Numbers with fractional are called __________.
Q. Single characters are represented through ______ type.
Q. Integers are whole values ________ numbers.
Q. Polymorphism is derived from a ___________ word.
Q. AWT stands for_________________.
Q. _____ is used to manage the memory allocation.
Q. ____________ is not a package in java.
Q. A subclass is also called as ____________.
Q. Can you write a Java class that could be used both as an applet as well as an application?
Q. What is the file extension of compiled java program?
Q. All the wrapper classes (Integer, Boolean, Float, Short, Long, Double and Character).
Q. The class that inherits is called a __________.
Q. Interface methods can be declared with which the following modifiers?
Q. Which of the function is used to convert String to Number in java program?
Q. What is the number of bytes used by Java primitive long?
Q. Codebase attribute in applet tag is used for _________.
Q. When you divide a number of type double by zero then the result will be __________.
Q. __________ is an applet tag.
Q. Which of the following helps in garbage collection?
Q. What is the unit for 1000 in the below statement? ob.sleep(1000)
Q. What is the priority of the Garbage collector thread of jdk?
Q. What are the part in executing a Java program and their purposes?
Q. What is the use of valueOf( ) method?
Q. What is the default thread at the time of starting the program?
Q. You would use the ____ operator to create a single instance of a named class.
Q. Which of the following statements correctly describes an interface?
Q. What is meant by timeslicing or time sharing?
Q. The data or variables, defined within a class are called _______ variables.
Q. finalize( ) is only called just prior to _________.
Q. Does a class inherit the constructors of its super class?
Q. Method overloading is one of the way that Java supports ____________.
Q. The new operator dynamically allocates ________ for an object and returns a reference to it.
Q. A class is declared by use of the ________ keyword.
Q. __________ code segments must be implemented for an event handler.
Q. A single-line comment begins with a ________ and ends at the end of the line.
Q. The term _____________ refers to a class's direct ancestor or to any of its ascendant.~~~classes.
Q. What method must be implemented by all threads?
Q. _________ is a feature that allows one interface to be used for a general class of actions.
Q. Java support RMI. What does this RMI stands for?
Q. What class is the top of the AWT event hierarchy?
Q. There are ________ types of comments in Java.
Q. When you read your e-mail, you are viewing _________ data.
Q. An _________ is a special kind of Java program that is designed to be transmitted over the internet.
Q. Java was conceived by __________.
Q. Which of the following statement is false?
Q. An array of objects, which may have_______ type of different classes.
Q. The modulus operator (%) in JAVA can be used only with variables of ______ type.
Q. Given the following statement: huey.setDouble(8.0*32.2+1.0);~~~What must be the data type of huey?.
Q. The data type for numbers such as 3.14159 is _________.
Q. A function is: _________________.
Q. The following is an example of a boolean expression
Q. Which of the following is NOT an example of a data type?
Q. A compound statement is ________.
Q. What is the purpose of this bit of code?~~~void init()~~~{~~~}
Q. What is the difference between a TextArea and a TextField?
Q. ________ are stored in hierarchical manner.
Q. Which Control Statements allow the program to choose different paths of execution?
Q. A class can be converted to a thread by implementing the interface ____________.
Q. Which of the following represent legal flow control statements?
Q. (1 | 4) + (4 & 2) = ?(in base ten)
Q. Choose the operations that can be performed on String objects:
Q. What method is used to specify a container's layout?
Q. Which of the following method can be used to change the size of a JAVA.awt.Component object?
Q. DataInput is ________________.
Q. The setBackground() method is part of the following class in JAVA.awt package.
Q. When we invoke repaint() for a JAVA.awt.Component object, the AWT invokes the method _____________.
Q. The keywords reserved but used in the initial version of JAVA are:
Q. Which of the following statements about abstract methods/classes in JAVA is true?
Q. Identify the statements that are not correct:
Q. 15 & 29 =?
Q. When we implement the Runnable interface, we must define the method
Q. The methods wait() and notify() are defined in?
Q. Given the code String s = new String("abc"); Which of the following call is not valid?
Q. Java was developed by the company
Q. ________ class must give a concrete method.
Q. When a method calls itseif, it is called __________.
Q. Inheritance allows _______ of sub classes.
Q. ___________ value cannot be updated.
Q. ___________ is a collection of classes.
Q. _________ Keyword is used to invoke the current object.
Q. Constructor will have the same name as ______________.
Q. A method can be called only on its ___________.
Q. Which of the following statement is false?
Q. Superscript, subscript, outline, emboss, engrave are known as
Q. Shimmer, Sparkle text, Blinking Background etc. are known as
Q. Bold, Italic, Regular are known as
Q. Which of the following is the latest version of MS Word?
Q. Selecting text means, selecting?
Q. Which of the following can be used to navigate documents?
Q. Before creating a master document, you must switch to _________
Q. Which menu do you choose to shade words and paragraph?
Q. Using the ribbon where should you go to activate the ruler on your document?
Q. The column command is located on the _____ tab.
Q. The header and footer command are located on the ____ tab
Q. Which of the following can you change using the page setup dialog box?
Q. To read through a document you may
Q. When a hyperlink is created, Word formats the Web address as _____.
Q. Ctrl + U
Q. On the works cited page, list works by each author’s last name and _____ the title of the work.
Q. Which of the following is correct regarding Underline in MS-Word?
Q. How many margins sare there on a page?
Q. Which of the following line spacing is invalid?
Q. Which feature is used for monitoring all document changes?
Q. If you want to keep track of different editions of a document which features will you use?
Q. When using the MLA style, position explanatory notes either at the _____.
Q. Which is an Office feature that makes it easy to edit embedded objects?
Q. Which would you choose to list Synonyms & Antonyms of a selected word?
Q. How do you magnify your document?
Q. To insert a drop cap in one of the paragraph you should access
Q. To get to the ‘Symbol’ dialog box, click on the ______ menu and choose ‘Symbol’.
Q. Which bar is usually located below that Title Bar that provides categorized options?
Q. What is the use of Document Map?
Q. What is the use of bookmarks in Microsoft Word?
Q. What is the purpose of inserting header and footer in document?
Q. In MS-Word, for what does ruler help?
Q. Why Drop Caps are used in document?
Q. Press the enter key in all of the following circumstances except _____.
Q. Which of the following provides a list ofx synonyms?
Q. Which is true when you insert an excel worksheet into a word document?
Q. What happens if you mark on Hidden check box of Font dialog box after you select some text?
Q. When you point to a text entry in the Office Clipboard gallery in the Clipboard task pane, _____.
Q. To save an existing document with a different file name, click _____.
Q. Which tab in Font dialog box contain options to apply font effects?
Q. The ribbon in Word 2007 consists of a series of
Q. Which of the following can be used to divide a web page into areas?
Q. Thesaurus tool in MS Word is used for
Q. Using Find command in Word, we can search?
Q. The shortcut keys for the _____ character formatting are ctrl+ shift+ plus sign.
Q. A character that is raised and smaller above the baseline is known as
Q. Which of the following best describes the contents of a mail merge main document?
Q. The _____ is a short horizontal line indicating the conclusion of a document.
Q. In Word 2007 the Zoom is placed on
Q. In order to email a Word document from withing MS Word
Q. Which of the following do you use to change margins?
Q. Insert Date, Format Page Number, and Insert AutoText are buttons on the _____ toolbar.
Q. What is placed to the left of horizontal scroll bar
Q. Which of the following commands should you always use before submitting a document to others?
Q. When typing in Preeti font all the Ukars turn to something else? What's the cause?
Q. Word has Web authoring tools allow you to incorporate _____ on Web pages.
Q. It is possible to _______ a data source before performing a merge.
Q. Which of the following helps to reduce spelling error in the document?
Q. Essential business letter elements include the _____.
Q. A word field may consist of an optional field instruction called a(n) ______
Q. What is the shortcut key to display field codes?
Q. Which key should be pressed to start a new paragraph in MS-Word?
Q. What is the shortcut-key for manual line break?
Q. Which of the following is not one of the three ‘Mail Merge Helper’ steps?
Q. How can you apply exactly the same formatting you did to another text?
Q. If you need to double underline a word, how will you do that?
Q. What is a portion of a document in which you set certain page formatting options?
Q. Ctrl + J
Q. Ctrl + S
Q. Ctrl + I
Q. Ctrl + W
Q. In MS Word, Ctrl+S is for …..
Q. In Word, the default alignment for paragraphs is _____.
Q. Which of the following is not available on the Ruler of MS Word screen?
Q. Ctrl + M
Q. How can you remove tab stop markers from ruler?
Q. From where you can access Save command?
Q. The other Col# are inactive when you’ve select 3 columns. How will you activate those boxes?
Q. Ctrl + R
Q. Background color or effects applied on a document is not visible in
Q. Ctrl + Q
Q. Ctrl + C
Q. to view headers and footers, you must switch to
Q. Which of these toolbars allows changing of Fonts and their sizes?
Q. To instruct Word to stop bulleting paragraphs, do any of the following except _____.
Q. How can you disable extended selection mode?
Q. How can you break the current column and start a new column immediately?
Q. You can detect spelling and grammar errors by
Q. Columns dialog box can be opened from
Q. Ctrl + V
Q. Change the _____ to create a document in wide format
Q. A _____ is a collection of predefined design elements and color schemes.
Q. Where can you change the vertical alignment?
Q. switching between portrait and landscape modes involves the:
Q. Which feature helps you to inserts the contents of the Clipboard as text without any formatting
Q. Which of the following is true regarding page Orientation of a Document?
Q. With which view can you see how text and graphics will appear on the printed page?
Q. Ctrl + T
Q. Ctrl + P
Q. Ctrl + H
Q. Ctrl + F
Q. Ctrl + G
Q. Where can you find the horizontal split bar on MS Word screen?
Q. By default, on which page the header or the footer is printed?
Q. Which of the following is not valid version of MS Office?
Q. Which of the following is not the Section Break Option?
Q. Ctrl + N
Q. Which of the following are word processing software?
Q. "Ctrl + Up Arrow" is used to
Q. "Ctrl + Left Arrow" is used to
Q. Page Up Key
Q. "Ctrl + Down Arrow" is used to
Q. "Ctrl + PageDown" is used to
Q. End Key
Q. "Ctrl + Right Arrow" is used to
Q. Home Key
Q. AutoCorrect was originally designed to replace _________ words as you type.
Q. Which of the following is not essential component to perform a mail merge operation?
Q. A word processor would most likely be used to do
Q. Which enables us to send the same letter to different persons?
Q. The ability to combine name and addresses with a standard document is called _________
Q. When you point to the _____ corner of a table, the table move handle appears.
Q. Which corner of the Word window has the zoom control?
Q. Which of the following position is not available for fonts on MS Word?
Q. A document in portrait orientation prints
Q. The ____ indents all the lines of a paragraph except first line
Q. Gutter position can be set in following positions
Q. What is the use of "All Caps" feature in MS-Word?
Q. What happens if you press Ctrl + Shift + F8?
Q. What happens when you click on Insert >> Picture >> Clip Art
Q. What does EXT indicator on status bar of MS Word indicate?
Q. Which menu do you choose to create header? (in MS Office 2003)
Q. Which menu do you choose to create footer? (in MS Office 2003)
Q. Which of the following can NOT be used to create parallel style column?
Q. Ctrl + K
Q. The keystrokes Ctrl + I is used to
Q. Ctrl + L
Q. Which of the following is not the part of standard office suite?
Q. Footnotes, endnotes, and indexes are all inserted as __________
Q. By default, Word automatically formats each heading in a table of contents as __________
Q. When you save a file as a Web page, Word converts the contents of the document into _____.
Q. Where is the quick Access Toolbar and when should you use it?
Q. Which key deletes the character to the right of the cursor?
Q. Which key deletes the character to the left of the cursor?
Q. To advance rightward from one cell to the next in a table, press the _____ key.
Q. MS Office provides help in many ways, which of these is one of them?
Q. Which of the following typically appear at the end of document for citation of source?
Q. Which indent marker controls all the lines except first line?
Q. Which of the following is Page Orientation?
Q. To display more of the document on the screen in print layout view, the _____ can be hidden.
Q. If you need to hide some paragraphs, how can you do it?
Q. You wished to justify text over the height of paper, which option will you choose
Q. Word stores all frames associated with a Web page in a single file called the _____.
Q. Which language does MS-Word use to create Macros?
Q. Changing the appearance of a document is called
Q. _____ are types of wizards and templates in the Resume Wizard dialog box.
Q. Select a ______ to apply a predefined format to a Word 2007 table
Q. From which menu you can insert Header and Footer?
Q. Which menu in MSWord can be used to change character size and typeface?
Q. To change margin settings, click _____ on the menu bar and then point to the Page Setup command.
Q. Which of the following function key activates the speller?
Q. Which keystroke is used for updating a field?
Q. Which of the following option in File pull down menu is used to close a MS Word document?
Q. The paragraph mark (¶) is a formatting mark that indicates where the _____ was pressed.
Q. What would you do when you want to update the data in an embedded worksheet range?
Q. Which of the following is graphics solution for Word Processors?
Q. Which toolbar has crop button?
Q. Where can you find the Draw Table tool button?
Q. What must be used to control the layering of objects?
Q. On which toolbar can you find Format Painter tool?
Q. To select a group of words, _____.
Q. Which of the following operations moves text from clipboard?
Q. To cancel a job that is printing or one that is waiting to be printed _____.
Q. What is the extension of Word files?
Q. In normal view, automatic page breaks _____.
Q. Auto text and Auto correct are ___________ tools.
Q. "Ctrl + Backspace" is used to
Q. Ctrl + Y
Q. Ctrl + D
Q. To erase a character to the right of the insertion point, press the _____ key.
Q. On the horizontal ruler, an upside down T indicates a _____ tab stop.
Q. In Word, the mailing list is known as the ____________.
Q. Ctrl + X
Q. Which would you choose to move selected text from one place to another?
Q. Text boundary can be displayed or hidden from
Q. Headers and footers can include text and graphics, as well as the _____.
Q. The scroll box on the vertical scroll bar indicates the _____.
Q. To undo the last work, press …..
Q. Which key is used to select all the text in the document?
Q. To move to the end of the document, press the _____ key(s).
Q. To increase a paragraph indent, use the _____ shortcut keys.
Q. Which key do you press to force a page break?
Q. What is the shortcut key to "Undo" the last action in a document?
Q. How to remove all character formats?
Q. What is the shortcut key to show font dialog box?
Q. What is the shortcut key to Close Active Document in Microsoft Word?
Q. What is the shortcut key for "Superscript" the selected text?
Q. What is the shortcut key for "Subscript" the selected text?
Q. What is the shortcut key to "Insert Hyperlink" in a document?
Q. What is the shortcut key for "Find and Replace" dialog box?
Q. What is the shortcut key for "Font" dialog box?
Q. What is the shortcut key to Update Formula in a table?
Q. What is the shortcut key for Spelling Check in document?
Q. What is the shortcut key to "Center Align" the selected text?
Q. What is the short cut key to open Font dialog box?
Q. What is the shortcut key you can press to create a copyright symbol?
Q. Which enables you to move directly to specific location in a document?
Q. Which of the following is not available in Font Spacing?
Q. A letterhead should contain all of the following EXCEPT ____.
Q. Which feature do you use to create a newspaper like document?
Q. Ctrl + O
Q. Which option in File pull-down menu is used to close a file in MSWord?
Q. Which of the following option is not available in Insert >> Picture ?
Q. Which would you choose to save a document with a new name?
Q. To switch between insert mode and overtype mode, _____.
Q. How do you close a word document without closing Word window?
Q. When a custom tab stop is set, Word _____.
Q. Ctrl + E
Q. Microsoft Office Word is a (n) _____.
Q. Which of the following is not on Home ribbon?
Q. Ctrl + A
Q. A (n) _____is a dot or other symbol positioned at the beginning of a paragraph.
Q. What is the default font used in MS Word 2007 document?
Q. How to use Format Painter multiple times
Q. How can you increase the font size of selected text by one point every time?
Q. In Word you can force a page break
Q. Which of the following enables you to paste data multiple times?
Q. You can jump to the next column by
Q. To move the cursor page to page of document
Q. After typing header text, how can you quickly enter footer text?
Q. A master document contains_________, each of which contains a pointer to a file on a disk?
Q. Ctrl + B
Q. Why the document you created at home displays with a different font at school?
Q. Tabs stop position cannot be the following alignment
Q. When you click on File menu in Word 2010, it opens
Q. Which option is not available in Insert Table Autofit behavior?
Q. If you want to convert a symbol or several lines of text into an AutoCorrect entry, you should:
Q. Which of the following command is not available in Tools menu?
Q. Which feature is used to replace straight quotes with smart quotes as you type?
Q. Which of the following is the second step in creating a macro?
Q. Which key is used to increase left indent?
Q. What is the shortcut key to split a table?
Q. What is the short cut key to open the Open dialog box?
Q. When typing in a word field manually, what must you press to insert the code’s braces?
Q. How can you make the selected character superscripted
Q. The spike
Q. What does Ctrl + = key effect?
Q. The _____ in the Resume Wizard dialog box indicates the wizard is ready to create the document.
Q. Ctrl + Z
Q. What is a Document Outline View?
Q. What do you call ‘a collection of character and paragraph formatting commands’?
Q. Pressing F8 key for three times selects
Q. How will MS Word will respond in repeated word.
Q. The Footnote Text style defines characters as _____.
Q. What is the smallest and largest font size available in Font Size tool on formatting toolbar?
Q. What is the default left margin in Word 2003 document?
Q. Word is preset to use standard 8.5-by-11-inch paper with _____ margins.
Q. What is the smallest width of a column?
Q. How much space in minimum must be provided between columns?
Q. Which of the following button will allow you to add, delete, or change records in your Data Source?
Q. With Word’s AutoCorrect entries, to display an indifferent face ( : ) type _____.
Q. The file type _____ indicates the file is a Word document.
Q. What is the default file extension for all Word documents?
Q. Word, by default, places a tab stop at every _____ mark on the ruler.
Q. What is the maximum font size you can apply for any character
Q. What is the maximum scale percentage available in Scale drop down box?
Q. In a document what is the maximum number of columns that can be inserted in MS Word Table?
Q. How many columns can you insert in a word document in maximum?
Q. What is the default number of lines to drop for drop cap
Q. In Microsoft Word shortcut key CTRL+P is used for
Q. In Microsoft Word shortcut key CTRL+O is used for
Q. In Microsoft Word shortcut key CTRL+N is used for
Q. In Microsoft Word shortcut key CTRL+L is used for
Q. In Microsoft Word shortcut key CTRL+I is used for
Q. In Microsoft Word shortcut key CTRL+H is used for
Q. In Microsoft Word shortcut key CTRL+F is used for
Q. In Microsoft Word shortcut key CTRL+E is used for
Q. In Microsoft Word shortcut key CTRL+B is used for
Q. In Microsoft Word shortcut CTRL+C is used for
Q. In Microsoft Word to paste something after cutting the following shortcut is used
Q. In Microsoft Word shortcut for copy is
Q. In Microsoft Word shortcut for paste is
Q. In Microsoft Word shortcut CTRL+A is to
Q. In Microsoft Word using SHIFT with any of the arrow keys
Q. In Microsoft Word using CTRL+SHIFT with any of the arrow keys
Q. In Microsoft Word move the insertion point to the beginning of the previous paragraph
Q. In Microsoft Word move the insertion point to the beginning of the previous paragraph
Q. In Microsoft Word move the insertion point to the beginning of the next paragraph
Q. In Microsoft Word move the insertion point to the beginning of the previous word
Q. In Microsoft Word move the insertion point to the beginning of the next word
Q. In Microsoft Word shortcut CTRL+SHIFT while dragging an item
Q. In Microsoft Word shortcut CTRL while dragging an item
Q. In Microsoft Word shortcut SHIFT+DELETE is used for
Q. In Microsoft Word system to copy something the following shortcut is used
Q. In Microsoft Word shortcut key CTRL+W is used for
Q. In Microsoft Word shortcut key CTRL+R is used for
Q. What is the minimum number of rows and columns that a word table can have?
Q. What does Ctrl + B shortcut accomplish in Ms-Word?
Q. Which of the following shortcut key is used to check spelling?
Q. Why are headers and footers used in document?
Q. What is the file extension of Ms-Word97- 2003 document?
Q. What does the Ctrl + I shortcut key accomplish in Ms-Word?
Q. What type of software is used for creating letters papers and other documents?
Q. Graphics for word processor
Q. In Microsoft Word shortcut DELETE is for
Q. In Microsoft Word shortcut CTRL+Z is for
Q. In Microsoft Word to cut something the following shortcut is used
Q. To open the existing presentation, press
Q. To insert new slide in the current Presentation, we can choose:
Q. Ellipse Motion is a predefined ________
Q. A File which contains readymade styles that can be used for a presentation is called :
Q. The arrangement of elements such as Title and subtitle text, pictures, tables etis called :
Q. From where can we set the timing for each object?
Q. How can the slide show be repeated continuously?
Q. Which of the following is an example for Automatic Text formatting?
Q. Which view in Power Point can be used to enter Speaker Comments?
Q. We can replace a font on all sides with another font using the option :
Q. A Chart can be put as a part of the presentation using
Q. How can you stop a slide show?
Q. What does 'apply design template' do?
Q. What is a slide transition?
Q. To print the PowerPoint presentation, press
Q. This task pane shows the design that is currently being used in a presentation.
Q. This is the menu command used to apply a design template in PowerPoint.
Q. In Power Point, this is a container for text or graphics.
Q. PowerPoint design templates are stored in a file with this extension.
Q. Which is the menu command to recolor a picture on a slide
Q. In PowerPoint, when the mouse pointer appears as this it indicates that the Draw Table feature is on
Q. Which is not the one of view options provided by PowerPoint to look at and modify presentation?
Q. In Normal view, this tab displays the content of each slide.
Q. Which type of template provides a design concept, fonts & color scheme for presentation?
Q. To place something in the same position on every slide of presentation automatically, insert into
Q. To select more than one slide in the presentation
Q. What is the shortcut key for repeat the recent find?
Q. What is the use of “Hide Slide” option?
Q. What is Custom Shows in PowerPoint?
Q. What is the use of Researching Timings?
Q. How to insert Tables in Slide?
Q. How to create additional Guide Lines?
Q. How to change the order of Slides in Presentation?
Q. Which of the following is correct regarding the Background of slides
Q. PowerPoint Application allows you to produce
Q. Which of the following can be use as slide background?
Q. What is defined by Handout Master?
Q. To add a Header/Footer in Handout
Q. Which of following are not PowerPoint views?
Q. What is to be use to add text in Slide?
Q. What is the shortcut key to start presentation from current slide?
Q. What is 'Motion Path' in PowerPoint?
Q. Which of the following statement is true?
Q. Which of the following is not a part of Slide Design?
Q. Which of the following statements is not true?
Q. Which of the following is an example for automatic text formatting
Q. To import text from a word document that uses headings into a PowerPoint presentation:
Q. Which of the following is not one of PowerPoint's views?
Q. To give a PowerPoint presentation to a large audience, you:
Q. Which of the following is not a feature of PowerPoint?
Q. Which is the best view for getting your thoughts for a presentation out on the computer?
Q. Which of the following can you use to add times to the slides in a presentation?
Q. A chart can be put as a part of the presentation using
Q. Which of the following statements is not true?
Q. Special effects used to introduce slides in a presentation are called
Q. Block arrows, stars and banners, and callouts are all examples of
Q. After choosing a predefine template, ….. option has to be chosen to change a background color
Q. To insert a new slide in the current presentation, we can choose
Q. You can show the shortcut menu during the slide show by
Q. To change font size of a selected slide title, you:
Q. To change font size of a selected slide title, you?
Q. To create a PowerPoint presentation from a template
Q. Which key deletes text before, or the left of, the insertion point?
Q. A file which contains readymade styles that can be used for a presentation is called
Q. Which of the following feature allows you to select more than one slide in slide sorter view?
Q. Animation schemes can be applied to ….. in the presentation
Q. PowerPoint 2000 has ……. Number of views
Q. The maximum zoom percentage in Microsoft PowerPoint is
Q. The auto shapes tool provides you with
Q. What is the name of the form used to input chart values?
Q. You can embed a Microsoft Word tale in a slide by
Q. You can edit an embedded organization chart object by
Q. To select all the boxes of an organization chart
Q. Which command select all object at one time when selecting multiple objects to be deleted?
Q. Which of the following displays when an image is selected?
Q. Material consisting of text and numbers is best presented as
Q. The handout master contains placeholders for all of the following except
Q. Which of the following features should you use when typing in the notes text box?
Q. What's the best way to design the layout for your slides?
Q. What's the easy way to apply varied animations to test on slides
Q. What's the best place to find animated images for your PowerPoint 2002 presentation?
Q. Which of the following allow you to select more than one slide in a presentation?
Q. to edit the text within the boxes of an organization chart, you
Q. The size of the organization chart object
Q. You can embed a MS-Organization Chart in a slide by
Q. To preview a motion path effect using the custom animation task pane, you should
Q. To start slide show of a presentation
Q. If you select Insert >> Picture >> From File
Q. What happens if you edited an image inserted in PowerPoint
Q. Which of the following font effect is not available in PowerPoint Font dialog box?
Q. Which of the following statement is true
Q. to insert a hyperlink in a slide
Q. If you want to insert some slides from other presentation into current one choose
Q. From which menu you can access Picture, Test Box, Chart etc?
Q. Which of the following is not a part of Slide Design
Q. Which short cut key inserts a new slide in current presentation?
Q. Which menu provides you options like Animation Scheme, custom Animation, Slide Transition?
Q. In which menu can you find features like Slide Design, Slide Layout etc.?
Q. What feature will you use to apply motion effects in between a slide exits and another enters?
Q. What lets you to create new presentation by selecting ready-made font color and graphics effects?
Q. Which of the following statement is false?
Q. In slide layout panel how many layouts are available for text layout by default?
Q. Which of the following pane is NOT available in Task Pane?
Q. Which of the following cannot be toggled from View >> Toolbars?
Q. _______ controls all the main slide control tasks for your presentation.
Q. To start Microsoft PowerPoint application
Q. Which of the following statements is not true?
Q. Which opf the following can you format using buttons on the formatting toolbar?
Q. Which option can be used to set custom timings for slides in a presentation?
Q. Which PowerPoint view works best for adding slide transitions?
Q. Which of the following is not one of PowerPoint’s views?
Q. PowerPoint can display data from which of the following add-in software of MSOffice
Q. Which types of fonts are best suitable for titles and headlines
Q. Which of the following is not a way to cut ext?
Q. Ellipse Motion is a predefined ….
Q. in order to edit a chart, you can
Q. Which of the following should be used with the mouse when you want to draw a perfect shape?
Q. Which of the following should you use to add shading to a drawing object on or an auto shape object?
Q. Which of the following best describes serifs?
Q. To edit the text within the boxes of an organization chart, you
Q. Which of the following is/are true about rulers and guides?
Q. To maintain the perspective (height and width ratio) of an object when resizing, you need to
Q. The size of an organization chart object
Q. What is the term used when a clip art image changes the direction it faces?
Q. Which of the following includes special effects that can be applied to drawing objects?
Q. The handout master contains placeholders fro all of the following except
Q. Presentation designs regulate the formatting and layout for the slide and are commonly called
Q. Which of the following provides a printed copy of your presentation?
Q. Which of the following should you do to bring a bullet back to a previous level?
Q. The toolbars that are displayed by default in the PowerPoint window includes
Q. What are symbols used to identify items in a list?
Q. Which of the following is the default page setup orientation fornotes pages, outlines and handouts?
Q. Which of the following features should you use when typing in he notes text box?
Q. Which of the following is not an option when printing handouts?
Q. You can tell when an object is active because
Q. Which of the following toolbars provides different options in various master views?
Q. You can create a new presentation by completing all of the following except:
Q. Using a custom animation effect, how do you make text appear on a slide by letter
Q. what’s the easy way to apply varied animations to test on slides
Q. What’s the best place to find animated images for your PowerPoint 2002 presentation?
Q. Which of the following will not advance the slides in a slide show view?
Q. Presentation designs regulate the formatting and layout for the slide and are commonly called
Q. Slide show options available to the presenter include all of the following except
Q. In Microsoft PowerPoint the entry effect as one slide replaces another in a show is called a (an)
Q. Whidh of the following allow you to select more than one slide in a presentation?
Q. to edit the text within the boxes of an organization chart, you
Q. You can show the shortcut menu during the slide show by
Q. To select all of the boxes of an organization chart
Q. Want your logo in the same position on every slide, automatically? Insert it on the
Q. In notes master view, how do you modify the font size of text for all hte4 notes of a presentation?
Q. what is defined by the handout master?
Q. which of the following is the default page setup orientation of slide in PowerPoint
Q. The size of the organization chart object
Q. You can edit an embedded organization chart object by
Q. special effects used to introduce slides in a presentation are called
Q. Material consisting of text and numbers is best presented as
Q. In Microsoft PowerPoint the handout master contains placeholders fro all of the following except
Q. In Microsoft PowerPoint the following are actions you can assign to an action button or slide object
Q. In Microsoft PowerPoint the following is not a feature of PowerPoint
Q. In Microsoft PowerPoint best way to insert a new slide in a presentation is to use the
Q. In Microsoft PowerPoint view can be used to enter speaker comments
Q. In Microsoft PowerPoint the following can you use to add times to the slides in a presentation
Q. In Microsoft PowerPoint chart can be put as a part of the presentation using
Q. In Microsoft PowerPoint the following statements is not true
Q. In Microsoft PowerPoint the following fill effects can you use for the slide background
Q. In Microsoft PowerPoint one thing the common tasks button allows you to do is
Q. In Microsoft PowerPoint Animation schemes can be applied to ….. in the presentation
Q. In Microsoft PowerPoint press animation effects allows you to
Q. In Microsoft PowerPoint auto shapes tool provides you with
Q. Which of the following you must first complete in order to delete an object?
Q. In Microsoft PowerPoint it is the name of the form used to input chart values
Q. In Microsoft PowerPoint the key on the keyboard can be used to view slide show
Q. In Microsoft PowerPoint special effects used to introduce slides in a presentation are called
Q. In Microsoft PowerPoint we can replace a font on all slides with another font using the …. option
Q. In Microsoft PowerPoint ellipse Motion is a predefined
Q. In Microsoft PowerPoint Right clicking something in PowerPoint
Q. In Microsoft PowerPoint the name of the form used to input chart values
Q. In Microsoft PowerPoint to insert a new slide in the current presentation, we can choose
Q. In Microsoft PowerPoint you can show the shortcut menu during the slide show by
Q. In Microsoft PowerPoint to change font size of a selected slide title, you
Q. In Microsoft PowerPoint to save a presentation you
Q. In Microsoft PowerPoint to create a PowerPoint presentation from a template
Q. Which of the following is not a transition effect?
Q. In Microsoft PowerPoint the key deletes text before, or the left of, the insertion point
Q. In Microsoft PowerPoint the following provides a printed copy of your presentation
Q. In Microsoft PowerPoint good design determines
Q. How would you create the following diagram in PowerPoint
Q. In Microsoft PowerPoint you can add multiple subordinates to a position by
Q. In Microsoft PowerPoint you can embed a organization chart in a slide by
Q. In Microsoft PowerPoint you can embed a Microsoft Word tale in a slide by
Q. In Microsoft PowerPoint you can edit an embedded organization chart object by
Q. In Microsoft PowerPoint to add a new row to a table you would
Q. In Microsoft PowerPoint to adjust the width of table columns, you
Q. In Microsoft PowerPoint to select all the boxes of an organization chart
Q. In Microsoft PowerPoint auto clip art is a feature that
Q. In Microsoft PowerPoint material consisting of text and numbers is best presented as
Q. In Microsoft PowerPoint Line spacing refers to
Q. Objects on the slide that hold text are called
Q. How can you quickly reinstate a deleted footer placeholder in master view?
Q. In normal view, how can you quickly change to handout master view?
Q. Objects on the slide that hold text are called
Q. Want your logo in the same position on every slide, automatically. Insert it on the
Q. Which of the following should be used when you want to add a slide to an existing presentation?
Q. Which option can be used to set custom timings for slides in a presentation?
Q. In Microsoft PowerPoint which application view works best for adding slide transitions?
Q. In Microsoft PowerPoint you can embed a MS-Organization Chart in a slide by
Q. Which of the following features should you use when typing in the notes text box?
Q. Which of the following toolbars provide different options in various master views?
Q. Which of the following is not a way to create a new presentation?
Q. Which of the following is an example for automatic text formatting
Q. To import text from a word document that uses headings into a PowerPoint presentation:
Q. Which of the following will not advance the slides in a slide show view?
Q. In Microsoft PowerPoint to exit the PowerPoint
Q. In Microsoft PowerPoint in order to edit a chart, you can
Q. In Microsoft PowerPoint in the context of animations, what is a trigger?
Q. In Microsoft PowerPoint what is a slide-title master pair?
Q. In Microsoft PowerPoint is a motion path
Q. In Microsoft PowerPoint material consisting of text and numbers is best presented as
Q. In Microsoft PowerPoint an image is selected, it displays which of the following?
Q. In Microsoft PowerPoint in order to edit a chart, you can
Q. In Microsoft PowerPoint the following is not a way to cut ext
Q. In Microsoft PowerPoint one way to make a PowerPoint slide display animations is to
Q. In Microsoft PowerPoint on which part of the chart are the values entered in a data sheet displayed
Q. In Microsoft PowerPoint cell is defined as
Q. In Microsoft PowerPoint the following best describes serifs
Q. In Microsoft PowerPoint to edit the text within the boxes of an organization chart, you
Q. In Microsoft PowerPoint the following is/are true about rulers and guides
Q. In Microsoft PowerPoint the following format options should be used to display dollars on an axis
Q. In Microsoft PowerPoint the following is not one of PowerPoint’s views
Q. In Microsoft PowerPoint you can edit an embedded organization chart object by
Q. In Microsoft PowerPoint special effects used to introduce slides in a presentation are called
Q. In Microsoft PowerPoint size of an organization chart object
Q. In Microsoft PowerPoint size of a table object
Q. In Microsoft PowerPoint the term used when a clip art image changes the direction it faces
Q. In Microsoft PowerPoint two kind of sound effects files that can be added to the presentation are
Q. Which file format can be added to a PowerPoint show?
Q. In Microsoft PowerPoint auto clipart is a feature that
Q. In Microsoft PowerPoint you can show the shortcut menu during the slide show by
Q. In Microsoft PowerPoint the following provides a printed copy of your presentation
Q. In Microsoft PowerPoint the following presentation elements can you modify using the slide master
Q. In Microsoft PowerPoint the entry effect as one slide replaces another in a show is called
Q. In Microsoft PowerPoint view that displays only text (title and bullets) is
Q. In Microsoft PowerPoint toolbars that are displayed by default in the PowerPoint window includes
Q. In Microsoft PowerPoint are symbols used to identify items in a list
Q. In Microsoft PowerPoint the following is the default page setup orientation for slides in PowerPoint
Q. In Microsoft PowerPoint the following features should you use when typing in he notes text box
Q. In Microsoft PowerPoint any and every command can be found on the
Q. In Microsoft PowerPoint the best way to design the layout for your slides
Q. In Microsoft PowerPoint the following is not an option when printing handouts
Q. In Microsoft PowerPoint you can tell when an object is active because
Q. In Microsoft PowerPoint the following toolbars provides different options in various master views
Q. In Microsoft PowerPoint the following allow you to select more than one slide in a presentation
Q. In Microsoft PowerPoint to edit the text within the boxes of an organization chart, you
Q. In Microsoft PowerPoint the following displays when an image is selected
Q. In Microsoft PowerPoint you can create a new presentation by completing all of the following except
Q. In Microsoft PowerPoint to exit the PowerPoint application, you should
Q. In Microsoft PowerPoint the easy way to apply varied animations to test on slides
Q. In Microsoft PowerPoint the best place to find animated images for your presentation
Q. In Microsoft PowerPoint in order to see all the slides on one screen use
Q. In Microsoft PowerPoint what are lines, curve, freeform, and scribble
Q. In Microsoft PowerPoint to select all of the boxes of an organization chart
Q. In Microsoft PowerPoint the following will not advance the slides in a slide show view
Q. In Microsoft PowerPoint to add a header or footer to your handout, you can use
Q. Which of the following is not a selection technique
Q. What is the purpose of the description column in table design view?
Q. The filter by selection feature allows you to filter:
Q. What happens when you add the asterisk (*) from any field list ot a query?
Q. In order to use dbms, it is important to understand
Q. What data type should yo choose for a zip code field in a table?
Q. If a piece of data is stored in two places in the database, then
Q. According to access help, what’s a good way to design a database?
Q. The arranging of data in a logical sequence is called
Q. What is the first step in creating a form or report with the form wizard or report wizard?
Q. How can you add a table to the relationship window?
Q. In access, the best types of queries to use for data analysis are:
Q. how do you update pivot table report data after changes are made to the source data?
Q. what are the columns in a Microsoft Access table called?
Q. what is a fast way t adjust the width of a column?
Q. a subset of characters within a data field is known as
Q. the complete picture of data stored in database is known as
Q. a file containing relatively permanent data is
Q. which of the following is not a type of Microsoft Access database object?
Q. the executive responsible for the data processing function in an organization is
Q. which of the following is not a data type
Q. what is the corresponding text for the <#1/1/95# validation rule setting?
Q. which of the following is a database management system?
Q. the way a particular application views the data from the database that the applicaton uses is a
Q. Which of the following is not a section in report design window?
Q. To display value from table for a label control
Q. Which of the following columns does not exist in macro design window?
Q. In relational database schema each tuple is divided into fields known as?
Q. Which of the following is a database management system?
Q. Saving a database in access is done
Q. To set a password for the database, select ____________ in the Microsoft Access open window.
Q. In access, this view is used to create and modify the structure of a form.
Q. This is not one of the sections of the form design window
Q. In the second subform wizard dialog box you specify the table to use as the data source and the
Q. Changing the order of this in the query datasheet does not affect the field order in the table.
Q. This query wizard will create a select query.
Q. Queries are based on this, allowing you to use a query as the source for forms and reports
Q. You can move between fields in a form by using any of these keys except
Q. Which of the following is not a form style available in the form wizard dialog box.
Q. This form displays multiple records, one per row, in the form window
Q. In the form wizard dialog box, the fields from the selected table are displayed in this list box.
Q. In access, this operation copies a backup file from the storage medium back onto the computer
Q. In access, this displays the results of a calculation in a query
Q. Which of the following database object can be used if you need to mail the invoice to customers?
Q. The ascending order of data hierarchy is?
Q. The operation of checking input data against specified criteria is known as?
Q. The ‘filter by selection’ allows you to filter those records
Q. Which of the following database object is created first before any other created?
Q. When a picture or other graphic image is placed in the report header section it will appear____
Q. Referential integrity means
Q. What do you mean by one to many relationship between student and class table?
Q. What is the difference between ‘open’ and ‘open exclusively’
Q. Which of the following statement is true?
Q. In a database table, the category of information is called __________
Q. Which of the following creates a drop down list of values to choose from?
Q. What are the different views to display a table
Q. The __________ is used to access one record at a time.
Q. To store your picture in a database requires a(n) __________ field.
Q. To print information from a table, the __________ tool is the best choice.
Q. __________ is used to build ‘intuitive’ queries.
Q. To delete records or perform calculations on a table, the best tool to use is a __________.
Q. The __________ field is used to hold a yes or no answer.
Q. This database has only one table.
Q. __________ are documents that when filled in create records.
Q. The __________ is the software tool to store or access data.
Q. __________ is the clear leader for personal databases.
Q. __________ will answer questions you did not think to ask of your data.
Q. Search engines use a(n) __________ to automatically index sites.
Q. A DBMS that runs on many different operating systems is said to be __________.
Q. The ability of a database to grow as the data tracking needs grow is its __________.
Q. The most popular commercial DBMS.
Q. An application that executes on separate PCs like this is called a(n) __________ application.
Q. Where can you find the undo command in Access?
Q. Which of the following methods CANNOT be used to delete records from a table?
Q. All attachment fields display as a(n) ____ in Datasheet View.
Q. A(n) ____ in the Record Selector indicates a new record.
Q. What is one of the advantages for using a form over other Access objects?
Q. What happens when a user selects a record in a form and presses [Delete]?
Q. In Datasheet View, new records are added to a table ____.
Q. A ____ is a major database object used to display information in a printable page format.
Q. Access file operations can be found by clicking the ____.
Q. The insertion point looks like a(n) ____.
Q. Which major database object stores all data?
Q. Print options can be changed in the Print ____.
Q. What is the keyboard shortcut to move to the last records in a table?
Q. Which of the following functions CANNOT be used in the Totals row?
Q. The Search tool is best used when searching for ______ data.
Q. Which is not an option for Filter on a text field?
Q. The ______ is a wild card that represents one or more characters.
Q. The content and application of the Search tool CANNOT be retained when you ______.
Q. To remove all Sorts in a table you can click the ______ command.
Q. Database properties do NOT include ___________.
Q. Which of the following data types automatically generates a consecutive number?
Q. Which of the following field properties displays a model or pattern for entering data?
Q. Which is NOT a method of creating a table?
Q. In Datasheet View, what appears at the top of each column?
Q. Which of the following field properties enforces the use of parentheses when keying an area code?
Q. The Input Mask wizard does NOT include the ability to do which of the following?
Q. The Table _______________ Wizard analyzes a database and recommends changes for normalization.
Q. What type of relationship is created when you select a primary key in both related tables?
Q. In the Field List of a table, the primary key appears _______________.
Q. Relationships between tables can be graphically viewed in the _______________ window.
Q. In the Relationship window, related fields from each table are connected by a(n) _______________.
Q. Referential integrity cannot be set for _______________ relationships.
Q. Which of the following search criteria is invalid?
Q. Which of the following statements about PivotChart View is NOT true?
Q. Which of the following statements about calculated fields is NOT true?
Q. Which of the following statements does NOT hold true for the Top Values property?
Q. Which of the following statements about criteria in a query is NOT true?
Q. Which of the following views is used to graphically summarize and analyze data in a recordset?
Q. To apply an AutoFormat to an entire Form, what must you select first?
Q. When increasing the Control Padding, space is added where?
Q. Which of the following statements about tab order setting is NOT true?
Q. Which Form tool creates a new form that show both a form and datasheet views?
Q. Which of the following statements about the Label Wizard is NOT true?
Q. Which of the following database objects can have more than one Group Header/Footer section?
Q. Which report section only prints one time at the end of the report?
Q. Which report section prints once at the bottom of every printed page?
Q. Which of the following can a Report Wizard NOT do?
Q. A ____ often display summary data such as totals or counts.
Q. Any report, including a basic report, can be modified in __.
Q. When you add fields in ____, a Field List pane displays.
Q. The page count of a report can be determined by clicking the _______ button.
Q. What does an inner join display?
Q. In a junction table, the _____ field consists of the foreign key from both the linked tables.
Q. A global join will be created automatically when using tables in a(n) _____.
Q. In a query, which row do you need to place wildcards to affect a parameter?
Q. Which of the following functions is used to all the values in a numeric field?
Q. A summary query can be created by adding which row to the design grid of a select query?
Q. Which of the following queries modifies fields not records?
Q. A(n) _______________ query makes changes to or moves records in a dynaset, in a single operation.
Q. Which of the following queries prompts users for input data by displaying dialog boxes?
Q. A(n) _______________ query locates data from one or more tables.
Q. In a query, what symbol is used to surround a parameter\'s user prompt?
Q. Which of the following is NOT true about background images?
Q. The _____ Symbol Smart Tag launches Microsoft Explorer and obtains a stock quote.
Q. The _____ Smart Tag launches Microsoft Outlook to schedule an appointment or display a calendar.
Q. The Allow _____ property controls whether new records can be added through the form.
Q. How can a user open the Expression Builder dialog box?
Q. A(n) _____ is a control that, when clicked, executes an action or series of actions.
Q. A Smart Tag can be set using the _____ tab in the property sheet.
Q. The three parts of an IIF function are separated by _____.
Q. Which function evaluates a "true/false" expression and then performs one of two actions?
Q. The _____ Builder is an Access tool for selecting colors from a palette or creating custom colors.
Q. If you need a calculation in an unbound control, you can create a custom _____.
Q. Which part of the IIF expression is the action performed if the true condition exists?
Q. The _____ function returns a string that has been converted to uppercase text.
Q. If a color property contains "#336699", how many blue units are in the color?
Q. A(n) _____ is an image control that displays in the background of a page on a form or report.
Q. Which of the following is the file extension for an Extensible Markup Language?
Q. In Access 2007, to set a table to open as a document tab, you need to go to the ____.
Q. In Access 2007, to make changes in the Trust Center, you need to go to the ____.
Q. Which of the following is a condensed form of standard generalized markup language?
Q. Which of the following options is NOT a part of an option group?
Q. Which of the following statements regarding charts is incorrect?
Q. Which control lets a user create multiple pages in a form?
Q. A(n) ____ is the default control for a Yes/No field.
Q. The option group ____ describes the contents of the entire option group.
Q. Which of the following statements about a tab control in a form is incorrect?
Q. The option button ____ identifies each button or check box in an option group.
Q. Which of the following statements about option group is incorrect?
Q. A(n)_______ is a major object that can run independent of a control.
Q. In a module, a(n) _______ is a series of commands and properties that perform a specific task.
Q. In a module, the VB Name used to display a warning query icon is _______.
Q. To assign a macro to an event, users need to open the form in Design View.
Q. By default, what is the name of a new module in the Modules folder of the Project pane called?
Q. A(n) _______ is major object that completes an action or a set of actions.
Q. What happens when a user double-clicks an object in the Project pane of the Visual Basic Editor?
Q. The VB Name used to display the warning message icon is _______.
Q. Macros can recover from _______ in a controlled manner.
Q. A collection of related tables is called
Q. Which of the following relationship is not valid in MS Access ?
Q. Which of the following is the DBMS type
Q. Query can be use to select data from
Q. Validation Rule in a field will
Q. In a table to insert User\'s Voice, Data field should be
Q. Which of the following is use to view or print the data in organized manner?
Q. Which of the following is invalid field name?
Q. Which of the following is use to get data from user?
Q. Which of the following Data Type is used to store picture in MS Access
Q. In MS Access "Lookup Wizard" is used to
Q. The appropriate Data Type to store Time in MS Access?
Q. Which of the following data type is used to store logical value in MS Access?
Q. In MS Access "Hyperlink" Data Type can store
Q. Which of the following is not a valid Data Type in MS Access?
Q. Which of the following is not an action query?
Q. Which is not a command that is selectable from right click menu of a field column?
Q. Which is not an option for customizing a datasheet window?
Q. Which setting you must modify to print a report using letterhead?
Q. Which function can not be used for calculated controls in a report?
Q. The report footer section is most useful for displaying:
Q. Which is not a view for displaying a report object?
Q. Which control type do you use to create a calculated control?
Q. Which control types is most often associated with a bound control?
Q. The basic elements of a form or a report are called:
Q. Which tool is used to generate printout of a table\'s structure?
Q. After right click the field selector button, which do you choose to delete a field in design view?
Q. Which do you click to display the table\'s primary key and indexes in a separate window?
Q. Which data type is better to use for storing the price of an item?
Q. Which leads you through the process of creating a table?
Q. In an application created using the database wizard, the main menu is presented as a:
Q. You have field ‘Sex’ of type Byte Number. How to limit its value to 0 and 1 only?
Q. How to make a date field DOB store the dates like "2002/10/17" ?
Q. Which query do you use to answer the question "What is the average salary of the employees"?
Q. Which criteria do not return the position "Officer" as a match?
Q. Which criteria return only those addresses beginning with the letter "K"?
Q. What does the expression [detail] ! [product] * 1.30 do?
Q. Which query do you use to answer the question "Which employees earn more than $5000 a month"?
Q. What do you call a collection of records matching parameters of a query?
Q. What is the full form of SQL?
Q. How many relations may exist between tables in databases?
Q. Which is the valid data type in Access?
Q. Which of the following is not a view for interacting with a form object?
Q. Which tool do you use to create a query object?
Q. What is an intersection of a row and a column?
Q. What determines a table’s sort order?
Q. Which type of field is incremented automatically?
Q. What do you call a primary key field included in another table?
Q. A ________ is a unit of information in a ________
Q. In a datasheet, what does each row represent?
Q. In a datasheet, what does each column represent?
Q. Which of the following is not a logical database structure?
Q. Which of the following is not a database application?
Q. In databases, Locking level is also called as
Q. An organized collection of logically related data is known as
Q. To create primary key for a table when in design view
Q. Which of the following expresses correct order?
Q. An Access database object that is used to enter, view or edit records
Q. The complete information about an entity in a database is called
Q. A database object in MS Access that stores a question about the data in database?
Q. Which of the following is not a database object in MS Access?
Q. Each record is constituted by a number of individual data items which are called
Q. The task of arranging data in order is called
Q. Collection of related records in a database is known as
Q. Which of the following term is least related to database?
Q. A database can be best described as
Q. Which of the following may not be a database?
Q. A part of database that stores only one type of data is
Q. What do you mean by one to many relationship between Student and Class table?
Q. Both conditions display on the same row in the design grid when ___operator is in use
Q. Which of the following store command to retrieve data from database?
Q. What is the maximum length a text field can be?
Q. It is a query that when run displays its own dialog box prompting you for information, such as
Q. Which of the following statement is true
Q. Which of the following is a method to create a new table in MS Access?
Q. Queries in Access can be used as
Q. Which field type can store photos?
Q. The___ operator will cause a record to be selected only if two or more conditions are satisfied
Q. Unlike text data type, this can store up to maximum of 65, 535 characters.
Q. We can remove a relationship defined between two tables by
Q. What is a form in MS Access
Q. What are the columns in a Microsoft Access table called?
Q. A search value can be an exact value or it can be
Q. To achieve AND effect when you are entering criteria in a query design window
Q. Which of the following creates a drop down list of values to choose from a list?
Q. It is a database object to view, change, and analyze data in different ways
Q. When entering field name, how many characters you can type in maximum?
Q. Which of the following is not a field type in Access
Q. A __ name must be unique within a database
Q. You can set a controls border type to make the border invisible.
Q. Which of the following database object produces the final result to present?
Q. A __________ enables you to view data from a table based on a specific criterion
Q. The expression builder is an access tool that controls an expression___ for entering an expression
Q. The__ button on the tool box display data from a related table
Q. Which of the following database object hold data?
Q. Which of the field has width 8 bytes?
Q. Which of the following is NOT a type of Microsoft Access database object?
Q. Following is not a database model
Q. Which of the following is not a type of relationship that can be applied in Access database
Q. What does the show check box in query design window indicate
Q. To duplicate a controls formatting you can use___
Q. The command center of access file that appears when you create or open the MS Access database file.
Q. This key uniquely identifies each record
Q. The size of Yes No field is always
Q. A small button with three dots usually displayed at the right of field properties box
Q. The size of a field with Number data type can not be
Q. The two form layout types will display multiple records at one time are tabular and___
Q. Which of the following is not a database object?
Q. In a database table, the category of information is called ____________
Q. Query design window has two parts. The upper part shows
Q. When a picture or other graphic image is placed in the report header section it will appear____
Q. What field type is used to store picture in a table?
Q. The following database object can you import from one Microsoft Access database to another?
Q. The procedure for selecting multiple controls on a report?
Q. You can keep the sum([Sales]) to calculate the totals for each month in
Q. You view the properties of a form
Q. The following property determines what is displayed in a control.
Q. (IF [Age]>65, “Senior”,”Adult”) This expression is an example of:
Q. The following criterion is NOT written using the proper syntax?
Q. The type of query extract the data and put them into separate table
Q. The Fill/Back Color button on the formatting toolbar applies color to:
Q. To insert a graphic of your company’s logo on a report
Q. To display sales grouped by country, region, and salesperson, all at the same time
Q. The following you can use in a macro to automatically send a report snapshot in an email message
Q. The following method you can use to add a new table to your database
Q. The checking operation performed on input data is called the
Q. How can you display sales grouped by country, region, and salesperson, all at the same time?
Q. Which action do you use in a a macro to automatically send a report snapshot in an email message?
Q. What method can you use to add a new table to your database?
Q. Which of the following is not a selection technique ?
Q. What is the propose to a sub datasheet?
Q. What is the purpose of the description column in Table Design View?
Q. The filter by selection feature allows you to filter
Q. What type of text box does the toolbox and to a form?
Q. If you are creating a cross tab query, what must table you are querying contain?
Q. How can you display the relationship in a database?
Q. You can display a database object in design view by
Q. Which of the following is NOT a report section?
Q. Which of the following type s of queries are action queries?
Q. You add a table to the query design window
Q. Which editor was provided for use with Access Basic?
Q. According to Access Help, what’s a good way to design a database?
Q. In Access to move the selected control down
Q. In Access to increase the width of the selected control
Q. In Access to reduce the height of the selected control
Q. In Access press CTRL+W or CTRL+F4 to
Q. In Access press SHIFT+F10 to
Q. In Access press ALT+SPACEBAR to
Q. In Access to Increase the height of the selected control
Q. In Access press DOWN ARROW or CTRL+ DOWN ARROW
Q. In Access press UP ARROW or CTRL+UP ARROW
Q. In Access press to Complete the wizard
Q. In Access press to Move to the previous page of the wizard
Q. Switch from the Visual Basic Editor back to form or report Design view in Access press
Q. In Access press to Switch from the Visual Basic Editor back to form or report Design view
Q. In Access press to Open the Choose Builder dialog box (Design view window of forms and reports)
Q. In Access to switch to Form view from form Design view
Q. In Access to switch between Edit mode (with insertion point displaye(D)
Q. In Access press UP ARROW to
Q. In access press to Move to the next page of the wizard
Q. In Access press to Toggle the focus forward between controls in the wizard
Q. In Access press LEFT ARROW or CTRL+LEFT ARROW
Q. In Access press RIGHT ARROW or CTRL+RIGHT ARROW
Q. In Access press …………………….to Copy the selected control to the Clipboard
Q. In Access press …………………….to Cut the selected control and copy it to the Clipboard
Q. In Access to Move down one line
Q. In Access to Move down one page
Q. In Access to Open a combo box
Q. Press the following keys in Access to Open the Save As dialog box
Q. Press the following keys in Access to Save a database object
Q. Press the following keys in Access to Cancel Print Preview or Layout Preview
Q. Press the following keys in Access to Open the Page Setup dialog box from Print Preview
Q. Press the following keys in Access to Open the Print dialog box from Print Preview
Q. Press the following keys in Access to Print the current or selected object
Q. In Access, to Exit Office Access 2007Access
Q. In Access to open an existing database press
Q. In Access to open new database press
Q. In Excel _______ may not contain in Formula
Q. What will be the result if you type =A1=B1 in cell C1?
Q. To show/hide the grid lines in Microsoft Excel 2007
Q. In Excel, by default Numeric Values appears in
Q. “New Comment” option can be found under _________ tab
Q. In maximum, how many sheets can be set as default while creating new workbook?
Q. Which one is the last column header in Excel 2007?
Q. What is the shortcut key to insert a new comment in a cell?
Q. 1What is the shortcut key to hide entire row?
Q. Worksheet can be renamed by
Q. If the cell B1 contains the formula = $A$1, which of the following statements is true
Q. If particular workbook have to open each time Excel started, where that workbook should be placed?
Q. How to fit long texts in a single cell with multiple lines?
Q. If 4/6 entered in a cell without applying any formats, Excel will treat this as
Q. Selecting the Rows 5 & 6 then choose Insert->RoWhat will happen?
Q. Which of the following is correct?
Q. Which of the following is correct syntax in Excel?
Q. Which of the following options is appropriate to show the numbers 9779851089510 in a cell?
Q. A smart tag will be removed from a cell when
Q. What is the quickest way to select entire worksheet?
Q. Clear the contents by pressing “DELETE” key from a keyboard will clear
Q. Selecting the Column G & H then choose Insert->Column, What will happen?
Q. How to specify cell range from A9 to A99 in Excel?
Q. What is the shortcut key to hide entire column?
Q. Which of the following syntax is correct regarding to SUM function in Excel?
Q. What is the shortcut key to insert current date in a cell?
Q. What value will display if the formula = “$55.00″+5 is entered into a cell?
Q. What does the NOW() function return?
Q. Which of the following function will use to find the highest number in a series of number?
Q. What should be add before a fraction to avoid entering it as a date?
Q. How to remove the unwanted action from recorded macro without recording the whole macro again?
Q. How to restrict to run a macro automatically when starting Microsoft Excel?
Q. Which of the following is correct?
Q. What is the AutoComplete feature of Excel?
Q. You can group noncontiguous worksheets with
Q. The Software which contains rows and columns is called ______
Q. What is the keyboard shortcut for creating a chart from the selected cell range?
Q. The cell reference for cell range of G2 to M12 is _______
Q. Which of the following methods will not enter data in a cell?
Q. Which of the following is not an option of the spelling dialog box?
Q. The default header for a worksheet is
Q. Formulas in Excel start with
Q. Which of the following is not an underline option in the format cells dialog box?
Q. A function inside another function is called _______
Q. What is the symbol for dividing?
Q. What is the symbol for multiplying?
Q. Which is an example of a function?
Q. Which is an example of a formula?
Q. Give me an example of a cell address.
Q. How do you tell one cell from another?
Q. Where a row and a column meet, what do you call that?
Q. You accidentally erased a record in the sheet. What command can be used to restore it immediately?
Q. If you want all of the white cats grouped together in the database, you need to sort by ________.
Q. The box on the chart that contains the name of each individual record is called the ________.
Q. In order to perform a calculation in a spreadsheet, you need to use a:
Q. MS-EXCEL can be used to automate
Q. The Cancel and Enter buttons appear in the:
Q. A __________ is a grid with labeled columns and rows.
Q. In help menu of Excel, which of the following tabs are found?
Q. In Excel, the Fill Color button on the Formatting toolbar is used for what?
Q. In Excel, a Data Series is defined as what?
Q. What happens when dollar signs ($) are entered in a cell address? (e$B$2:$B$10)
Q. To record a sequence of keystrokes and mouse actions to play back later we use:
Q. The spelling dialog box can be involved by choosing spelling from ________ menu.
Q. Excel displays the current cell address in the ……….
Q. What is the short cut key to highlight the entire column?
Q. How do you display current date and time in MS Excel?
Q. What will be the output if you format the cell containing 5436.8 as ‘#,##0.00′?
Q. Which Chart can be created in Excel?
Q. How do you rearrange the data in ascending or descending order?
Q. Microsoft Excel is a powerful………..
Q. Which is not the function of “Edit, Clear” command?
Q. Which function is not available in the Consolidate dialog box?
Q. To return the remainder after a number is divided by a divisor in EXCEL we use the function?
Q. To select an entire column in MS-EXCEL, press?
Q. In EXCEL, you can sum a large range of data by simply selecting a tool button called …..?
Q. What do you mean by a Workspace?
Q. An Excel Workbook is a collection of …….
Q. Multiple calculations can be made in a single formula using…..
Q. Which area in an Excel window allows entering values and formulas?
Q. A numeric value can be treated as label value if …… precedes it.
Q. Which elements of a worksheet can be protected from accidental modification?
Q. Getting data from a cell located in a different sheet is called….
Q. Which menu option can be used to split windows into two?
Q. Comments can be added to cells using …..
Q. Comments put in cells are called …..
Q. What is the short cut key to replace a data with another in sheet?
Q. Which of the following action removes a sheet from workbook?
Q. The Delete key of keyboard is assigned to which command in Excel?
Q. To remove the content of selected cells you must issue ______ command
Q. The command Edit >> Fill Across Worksheet is active only when
Q. The short cut key Ctrl + R is used in Excel to
Q. Ctrl + D shortcut key in Excel will
Q. When a row of data is to be converted into columns
Q. MS Excel provides the default value for step in Fill Series dialog box
Q. Long text can be broken down into many lines within a cell. You can do this through
Q. You can auto fit the width of column by
Q. Which of the cell pointer indicate that you can move the content to other cell?
Q. Which of the cell pointer indicates that you can fill series?
Q. Which of the cell pointer indicates you that you can make selection?
Q. It is acceptable to let long text flow into adjacent cells on a worksheet when
Q. Which command will you choose to convert a column of data into row?
Q. Which of the following option is not available in Paste Special dialog box?
Q. What happens when you press Ctrl + X after selecting some cells in Excel?
Q. Which of the following Excel screen components can NOT be turned on or off?
Q. How can you show or hide the gridlines in Excel Worksheet?
Q. Where can you change automatic or manual calculation mode in Excel?
Q. How can you update the values of formula cells if Auto Calculate mode of Excel is disabled?
Q. You can merge the main document with data source in Excel. In mail merge operation, Word is usually
Q. Which of the following is not the correct method of editing the cell content?
Q. The Name box on to the left of formula bar
Q. Tab scroll buttons are place on Excel screen
Q. Which tool you will use to join some cells and place the content at the middle of joined cell?
Q. You can use the formula pallette to
Q. Which of the following is not true regarding Conditional Formatting?
Q. Where can you set the shedding color for a range of cells in Excel?
Q. How can you remove borders applied in cells?
Q. Pre-made sheet formats like Simple, Classic, Accounting, Colorful et can be applied from
Q. Merge cells option can be applied from
Q. Special category of Number tab in Format Cells dialog box can be used to apply formats like
Q. Which function will you use to enter current time in a woksheet cell?
Q. What is entered by the function =today()
Q. Formatting a cell in Number format you can’t set
Q. Formatting a cell in Currency, you can specify
Q. You can automatically adjust the size of text in a cell if they do not fit in width by
Q. Can you set 0.5 inch left indentation for a cell in Excel?
Q. If you need a text to show vertically in a cell. How will you achieve this?
Q. The spelling tool is placed on ______ toolbar
Q. Which of the following is not a valid Zoom percentage in Excel?
Q. To create an interactive Pivot Table for the web, you use a Microsoft Office Web component called
Q. Excel is a
Q. what term describes a background that appears as a grainy, non smooth surface
Q. You can edit existing Excel data by pressing the
Q. “Qtr 1, Qtr 2, Qtr 3” is an example of a
Q. What is an expression that tells how the numbers in a determined set of cells are to be calculated?
Q. you can use the formula palette to
Q. If you press …., the cell accepts your typing as its contents.
Q. Which of the following is not a worksheet design criterion?
Q. To protect a worksheet, you can choose Protection and the Protect Sheet from the ….. menu
Q. You can quickly change the appearance of your work by choosing Auto Format from the …. Menu
Q. Which of the following is not an option in the spelling dialog box?
Q. Which of the following methods cannot be used to edit the content of cell?
Q. Which of the following will not set text in selected cells to italics?
Q. Which of the following methods can not be used to enter data in a cell?
Q. Which function calculates your monthly mortage payment?
Q. A function inside another function is called a ….. function.
Q. Which of the following is a correct order of precedence in a formula calculation?
Q. You can print only an embedded chart by
Q. Gridlines
Q. What does the VLOOKUP function do?
Q. How are data organized in a spreadsheet?
Q. Which types of charts can excel produce?
Q. You can open the consolidate dialog box byt choosing Consolidate from the ….. menu.
Q. Macros are “run” or executed from the ….. menu.
Q. When you insert an Excel file into a Word document, the data are
Q. What function displays row data in a column or column data in a row?
Q. You can use the horizontal and vertical scroll bars to
Q. when you work with large worksheets, you may need to
Q. How do you change column width to fit the contents?
Q. The Name box
Q. To center worksheet titles across a range of cell, you must
Q. To insert three columns between columns D and E you would
Q. What’s a quick way to extend these numbers to a longer sequence, for instance 1 through 20?
Q. Which of the following is not a basic step in creating a worksheet?
Q. when you use the fill effects in the format data series dialog box, you can not
Q. Which of the following describes how to select all the cells in a single column?
Q. Got functions? No? You need the insert function dialog box. How do you get it?
Q. What term refers to a specific set of values saved with the workbook?
Q. Which of the following setup options can not be set in the page setup dialog box?
Q. You can copy data or formulas
Q. when working in the page break preview, you can
Q. You can open the Sort dialog box by choosing Sort from the ….. menu
Q. You can open the scenario Manager dialog box by choosing scenarios from the ….. menu.
Q. Status indicators are located on the
Q. When you see a cell with a red triangle in the top right corner, what does this signify?
Q. When you link data maintained in Excel workbook to a Word document
Q. You can group noncontiguous worksheets with
Q. when you print preview a worksheet
Q. In a worksheet you can press Shift+Space to select entire
Q. When the formula bar is activated, you can see
Q. to activate the previous cell in a pre-selected range, press
Q. When creating a vertical page break
Q. To drag a selected range of data to another worksheet in the same workbook, use the
Q. The default header for a worksheet is
Q. You can use the format painter multiple times before you turn it off by
Q. Data marker on a chart are linked to data points in a worksheet, therefore,
Q. which function will calculate the number of workdays between 6/9/2004 and 8/12/2004?
Q. This type of software is similar to an accountant’s worksheet
Q. You can not link Excel worksheet data to a Word document
Q. Excel uniquely identifies cells within a worksheet with a cell name
Q. You can use drag-and-drop to embed excel worksheet data in a word document
Q. Concatenation of text can be done using
Q. A numeric value can be treated as a label value if it precedes with
Q. Getting data from a cell located in a different sheet is called
Q. The Chart wizard term data categories refers to;
Q. The chart wizard term data series refers to
Q. Which of the following is not an example of a value?
Q. A worksheet can have a maximum of …. Number of rows
Q. How many characters can be typed in a single cell in Excel?
Q. A typical worksheet has …. Number of columns
Q. Which of the following formulas will Excel Not be able to calculate?
Q. Which of the following formulas is not entered correctly?
Q. Which symbol must all formula begin with?
Q. What symbol is used before a number to make it a label?
Q. Which of the following is an absolute cell reference?
Q. Which menu option can be sued to split windows into two
Q. Which of the following is the latest version of Excel
Q. Which of the following is not a worksheet design criterion?
Q. Comments can be added to cells using
Q. To delete an embedded objects, first
Q. Documentation should include
Q. Right clicking something in Excel:
Q. How can you delete a record?
Q. It is acceptable ot let long text flow into adjacent cells on a worksheet when
Q. You can use the drag and drop method to
Q. Which elements of worksheet can be protected from accidental modification
Q. You can select a single range of cells by
Q. Which of the following methods can not be used to edit the contents of a cell?
Q. Which of the following options is not located in the Page Setup dialog box?
Q. Which of the following is not a valid data type in excel
Q. The Paste Special command lets you copy and paste:
Q. You can enter which types of data into worksheet cells?
Q. Each excel file is called a workbook because
Q. Which of the following is not information you can specify using the solver?
Q. When you insert an excel file into a word document. The data are
Q. Which of following is Not one of Excel’s what-if function?
Q. You can convert existing excel worksheet data an charts to an HTML document by using
Q. You can use the formula palette to
Q. You can use the format painter multiple times before you turn it off by
Q. Which of the following is a popular DOS based spreadsheet package?
Q. You can not link excel worksheet data to a word document
Q. You can copy data or formulas
Q. Status indicators are located on the
Q. To create a formula, you can use:
Q. Which area in an excel window allows entering values and formulas
Q. When you link data maintained in an excel workbook to a word document
Q. In a worksheet you can select
Q. To copy formatting from one area in a worksheet and apply it to another area you would use:
Q. When the formula bar is active, you can see
Q. Which button do yu click to add up a series of numbers?
Q. You can use the horizontal and vertical scroll bars to
Q. When a label is too long to fit within a worksheet cell, you typically must
Q. When integrating word and excel, word is usually the
Q. How do you delete a column?
Q. To create a formula, you first:
Q. How can you print three copies of a workbook?
Q. How do you select an entire column?
Q. Which of the following is not a basic step in creating a worksheet?
Q. Which of the following is not a way to complete a cell entry?
Q. Which of the following will not cut information?
Q. Which of the following methods can not be used to enter data in a cell
Q. In Excel In a worksheet you can select
Q. To copy formatting from one area in a worksheet and apply it to another area you would use
Q. In Excel when the formula bar is active, you can see
Q. In Excel to activate the previous cell in a pre- selected range, press
Q. In Excel you can copy data or formulas
Q. In Excel Rounding errors can occur
Q. In Excel A data map is helpful
Q. In Excel when working in the page break preview, you can
Q. In Excel to create a formula, you can use
Q. In Excel to edit in an embedded excel worksheet object in a word document
Q. In Excel you can open the Sort dialog box by choosing Sort from the ….. menu
Q. In Excel you can open the scenario Manager dialog box by choosing scenarios from the ….. menu.
Q. In Excel Status indicators are located on the
Q. In Excel one can use the format painter multiple times before one turn it off by
Q. In Excel you cannot link excel worksheet data to a word document
Q. In Excel one can copy data or formulas
Q. In Excel Rounding errors can occur
Q. In Excel Status indicators are located on the
Q. To edit data in an embedded Excel worksheet object in a Word document
Q. In Excel when you see a cell with a red triangle in the top right corner, what does this signify?
Q. When you link data maintained in Excel workbook to a Word document
Q. In Excel you can group noncontiguous worksheets with
Q. In Excel it is acceptable to let long text flow into adjacent cells on a worksheet when
Q. In Excel which do you press to enter the current date in a cell?
Q. In Excel to access the Go To Special feature, you can press
Q. When you print preview a worksheet
Q. In a worksheet you can select
Q. In Excel when the formula bar is activated, you can see
Q. In Excel to activate the previous cell in a pre- selected range, press
Q. In Excel when creating a vertical page break
Q. In Excel to drag a selected range of data to another worksheet in the same workbook, use the
Q. In Excel you can use the horizontal and vertical scroll bars to
Q. In Excel when you work with large worksheets, you may need to
Q. In Excel how do you change column width to fit the contents?
Q. In Excel when integrating Ms-Word and Excel, Word is usually the
Q. In Excel to center worksheet titles across a range of cell, you must
Q. In Excel the following is not an underline option in the format cells dialog box
Q. In Excel to cancel the marquee, press
Q. In Excel to name a constant, you use the …… dialog box
Q. In Excel to balance your checkbook, your best method is
Q. In Excel you can use the drag and drop method to
Q. In Excel this function converts miles to kilometers, kilograms to pounds, and so on
Q. In Excel LEN function does what?
Q. In Excel default style for new data keyed in a new workbook is
Q. Which of the following methods cannot be used to edit the contents of a cell In Excel?
Q. In Excel which of the following options is not located in the Page Setup dialog box?
Q. In Excel which of the following is not a valid data type in excel
Q. In Excel the Paste Special command lets you copy and paste
Q. In Excel which of the following is a correct order of precedence in formula calculation?
Q. In Excel all worksheet formula
Q. In Excel you can enter which types of data into worksheet cells?
Q. In Excel each excel file is called a workbook because
Q. In Excel the following is not information you can specify using the solver
Q. In Excel when you insert an excel file into a word document. The data are
Q. In Excel circular reference is
Q. In Excel you can convert existing excel worksheet data an charts to an HTML document by using
Q. In Excel you can use the formula palette to
Q. In Excel which of these will not select all the cells in a document?
Q. In Excel to move to the previous worksheet, press
Q. In Excel you can add a hyperlink to your worksheet by pressing
Q. In Excel to open the Format Cells dialog box, press
Q. In Excel All macro keyboard shortcuts include the ….. key
Q. In Excel Tab scrolling buttons
Q. In Excel you can insert labels for
Q. In Excel what does SUMIF function do?
Q. In Excel the following is not a basic step in creating a worksheet
Q. In Excel when you use the fill effects in the format data series dialog box, you cannot
Q. In Excel got functions? No? You need the insert function dialog box. How do you get it?
Q. In Excel term refers to a specific set of values saved with the workbook
Q. In Excel the following setup options cannot be set in the page setup dialog box?
Q. In Excel you can activate a cell by
Q. In Excel to open an existing workbook, you can click the Open button on the …… toolbar.
Q. This type of software contains rows and columns.
Q. In Excel to delete and embedded object, first
Q. In Excel to select an individual data marker or data label, you must
Q. In Excel Graphics objects on a chart are used to
Q. In Excel the following displays the contents of the active cell
Q. In Excel Book1 is an example of how … are numbered and named during each work session
Q. In Excel using the AutoSum button will replace in the selected cell
Q. In Excel when you are typing an equation into a cell the first thing that must be entered is
Q. In Excel the cell labeled F5 refers to
Q. In Excel AutoCalculate will quickly add selected cells if you
Q. In Excel the view that puts a blue a blue line around each page that would be printed is the
Q. In Excel constant is another name for this type of data
Q. In Excel Multiple calculations can be made in a single formula using
Q. In Excel you can use the horizontal and vertical scroll bars to
Q. In Excel which is used to perform what if analysis?
Q. In Excel Comments put in cells are called
Q. In Excel when a label is too long to fit within a worksheet cell, you typically must
Q. In Excel when integrating word and excel, word is usually the
Q. In Excel how can you find specific information in a list?
Q. In Excel how do you delete a column?
Q. In Excel to center worksheet titles across a range of cells, you must
Q. In Excel to create a formula, you first
Q. In Excel how can you print three copies of a workbook?
Q. In Excel how do you select an entire column?
Q. In Excel the following is not a basic step in creating a worksheet
Q. In Excel how do you insert a row?
Q. In Excel you can activate a cell by
Q. In Excel which of the following is not a way to complete a cell entry?
Q. In Excel the following will not cut information
Q. In Excel which is not an advantage of using computerized spreadsheets?
Q. In Excel which of the following special function keys allow the content in cell
Q. In Excel which menu option can be sued to split windows into two
Q. In Excel when you copy a formula
Q. In Excel to copy cell contents using drag and drop press the
Q. In Excel you can edit a cell by
Q. In Excel to save a workbook, you
Q. In Excel when you want to insert a blank imbedded excel object in a word document you can
Q. In Excel to view a cell comment
Q. In Excel if you press ……, the cell accepts your typing as its contents.
Q. In Excel to select a column the easiest method is to
Q. There are three types of data found in a spreadsheet
Q. In Excel intersection of a row and column is called :
Q. In Excel advantage of using a spreadsheet is
Q. In Excel you can create hyperlinks from the Excel workbook to
Q. In Excel you can create only a horizontal page break by first selecting
Q. In Excel using the F11 shortcut key to create a chart on chart sheet creates
Q. In Excel on an Excel sheet the active cell in indicated by
Q. In Excel on an excel sheet the active cell in indicated by
Q. In Excel to add two cells (A1 and A2) together you use the following formula
Q. In Excel two common wildcard characters that Excel recognizes are
Q. All formula in Excel start with
Q. In Excel you can select a single range of cells by
Q. In Excel to view a cell comment
Q. In Excel the auto calculate feature
Q. In Excel you can use drag-and-drop to embed excel worksheet data in a word document
Q. In Excel data can be arranged in a worksheet in a easy to understand manner using
Q. In Excel concatenation of text can be done using
Q. In Excel numeric value can be treated as a label value if it precedes with
Q. In Excel Tab scrolling button
Q. In Excel getting data from a cell located in a different sheet is called
Q. In Excel worksheet range is a
Q. In Excel Chart wizard term data categories refers to
Q. In Excel chart wizard term data series refers to
Q. In Excel the following is not an example of a value
Q. In Excel worksheet can have a maximum of …. Number of rows
Q. In Excel how many characters can be typed in a single cell?
Q. In Excel typical worksheet has …. Number of columns
Q. In Excel which of the following formulas will Excel not be able to calculate?
Q. In Excel which of the following formulas is not entered correctly?
Q. In Excel which symbol must all formula begin with?
Q. In Excel what symbol is used before a number to make it a label?
Q. In Excel which of the following is an absolute cell reference?
Q. In Excel which of the following is not a worksheet design criterion?
Q. In Excel comments can be added to cells using
Q. In Excel to delete an embedded objects, first
Q. Files created with Lotus 1-2-3 have an extension
Q. In Excel Documentation should include
Q. In Excel how can you delete a record?
Q. In Excel it is acceptable ot let long text flow into adjacent cells on a worksheet when
Q. In Excel you can use the drag and drop method to
Q. In Excel which elements of worksheet can be protected from accidental modification ?
Q. In Excel value used in a formula that does not change is called a
Q. What excel feature can you use if you want to work with one record at a time?
Q. In Excel you can use the formula palette to
Q. In Excel the auto fill feature
Q. In Excel if you press …….., the cell accepts your typing as its contents.
Q. In Excel to copy cell contents using drag and drop, press the
Q. In Excel which of the following is not a worksheet design criterion
Q. In Excel you can open the Highlight Changes dialog box by choosing Track Changes from the …. Menu.
Q. In Excel to protect a worksheet, you can choose Protection and the Protect Sheet from the ….. ……menu
Q. In Excel the auto calculate feature
Q. In Excel 3-D reference in a formula
Q. In Excel the drag and drop method of copying or moving
Q. In Excel following term describes explanatory text attached to a cell
Q. In Excel….. is a group of cells that form a rectangle on the screen.
Q. In Excel you can use the format painter multiple times before you turn it off by
Q. In Excel this type of software is similar to an accountant’s worksheet
Q. You cannot link Excel worksheet data to a Word document
Q. In Excel you can zoom a worksheet
Q. In Excel when you group worksheets
Q. In Excel data marker on a chart are linked to data points in a worksheet, therefore,
Q. In Excel which functions will calculate the number of workdays between 6/9/2004 and 8/12/2004
Q. In Excel you can use drag and drop to embed excel worksheet data in a word document
Q. In Excel accounting style shows negative numbers in
Q. In Excel you can copy cell formats from one cell to another by using the
Q. Excel uses the …. Function when creating a data table
Q. In Excel which of the following is not an option in the spelling dialog box
Q. In Excel default header for a worksheet is
Q. What is the output of the following program? tday=datetime.date.today() print(tday.month())
Q. What is the output of the following? x = ['ab', 'cd'] print(len(list(map(list, x))))
Q. What is the output of the following code? def foo(k): k[0] = 1 q = [0] foo(q) print(q)
Q. What is the length of sys.argv?
Q. What is the output of the following program?
Q. What is the output of the following program : print 'abcefd'.replace('cd', '12')
Q. What is the output of the following program : print 'cd'.partition('cd')
Q. What is the output of the following program : i = 0 while i < 3: print i i += 1 else: print 0
Q. What is the output of the following program : print '{0:-2%}'.format(1.0 / 3)
Q. What is the output of the following program : print '{0:.2}'.format(1.0 / 3)
Q. What data type is the object below? L = [1, 23, „hello‟, 1]
Q. What is the output of the following program : print 0.1 + 0.2 == 0.3
Q. What is the output of the following program : i = 0 while i < 3: print i print i+1
Q. What is the output of the following code : print 9//2
Q. Message queues are created in
Q. Which is not the correct option for removing a message queue ?
Q. Which system call is used to create Sys V message Queue ?
Q. Which one of the following is not system V IPC ?
Q. System V IPC common attributes are
Q. Advantage of FIFO over pipe is
Q. The persistancy of a FIFO is
Q. Which is true regarding pipes?
Q. The kill system call is used to
Q. Default action of SIGSEGV is
Q. Signals are handled using which system call?
Q. When real interval timer expires which signal is generated?
Q. Another signal that cannot be caught is:
Q. Which of the following signal cannot be handled or ignored?
Q. Which signal is sent when the Child process terminates?
Q. Which signal is generated when we press ctrl-Z?
Q. Which signal is generated when we press control-C?
Q. If a signal is received by a process, when will it be processed?
Q. How many types of sockets are there?
Q. An interface is a set of ___________ designed to facilitate interaction between two entities
Q. Communication using TCP is usually____________.
Q. Communication using UDP is usually____________.
Q. How many class A, B and C network IDs can exist?
Q. What type of addressing format is used by Class A network?
Q. What command do you use to add routes to a Linux router?
Q. What service is not monitored by inetd ?
Q. What can he used to set up a firewall on a Linux system?
Q. What TCP/IP protocol is used for transferring electronic mail messages from one machine to another?
Q. What TCP/IP protocol is used for file transfer with minimal capability and minimal overhead?
Q. What service is used to translate domain names to IP addresses?
Q. How many networks and nodes per network, are allowed by the Class B network?
Q. What TCP/IP protocol is used for remote terminal connection service?
Q. The physical layer of a network
Q. How to identify a communication?
Q. NetBIOS is
Q. Similar to read and write system calls
Q. The set of possible names for a given type of IPC is called its
Q. who cut –d ” ” -f1 what is the ouput if the who command displays like this user1 tty 0 1234
Q. Indicate the right option to search for BOB, Bob, BOb or BoB?
Q. Which one is used to select only one copy of the repeated lines?
Q. What will be printed for the command below? $ grep –c “^echo” abc
Q. Which of the following is not a iterative construct in "bash"?
Q. Which command executes ‘command’ in place of the current process instead of creating a new process?
Q. Which option of the command ‘cd’ use the actual filesystem path for cd..and the value of pwd?
Q. Which command runs the shell built-in command ‘command’ with the given argument?
Q. The asterisk is a meta-character which in the command "ls *.txt" means
Q. The shell in the Unix system is the
Q. What special character is used to designate the users home directory in the C shell?
Q. The purpose of the PATH variable is to
Q. Which was the first Unix shell?
Q. Which of the following is not a major Unix shell?
Q. Which statement resumes the next iteration of a for, while, select, or untill loop?
Q. Which of the following command lists the last 10 lines of a file?
Q. What shell's wild-card is used to match a single character?
Q. What command is used to sort the lines of data in a file in reverse order?
Q. What command is used to save the standard output in a file, as well as display it on the terminal?
Q. The command that can be used to restrict incoming messages to a user is
Q. Which of the following commands is used to update access and modification times of a file?
Q. Which command is used to select those lines that begin with a 2 in the tre file empl.1st?
Q. The commonly used UNIX commands like date, Is, cat, etc. are stored in
Q. The command chmod 4777 a.out
Q. Which of the following umask settings allow execute permission to be set by default on regular files
Q. Given the command $ chmod o-w datafile
Q. With a umask value of 112, what is the default permission assigned to newly created regular file?
Q. The permission -rwxr-xr-t represented in octal expression will be
Q. Which command will you use to see the available routes?
Q. What command is used to list contents of directories?
Q. In which directory can you store system user default files used for creating user directories?
Q. Which option of ls command used to view file inode number ?
Q. Which command is used to display the unix version ?
Q. Which command is used to display the operating system name ?
Q. Which command is used to record a user login session in a file ?
Q. Which command is used to set terminal IO characteristic?
Q. The second set of the three permissions (r-) indicates that
Q. Which of the following commands is used to view the file 24 lines at a time?
Q. The chmodugo+rw note command can be represented in octal notation as
Q. Which command is used to assign only read permission to all three categories of the file ‘note’?
Q. Which of the following commands is used to count just the number of lines contained in a file?
Q. Which of the following commands is used to list remove files?
Q. Which of the following commands is used to list contents of directories?
Q. Which of the following commands is used to change the working directory?
Q. Which of the following commands is used to summarize the disk usage?
Q. Under UNIX the key board is the default input device and the monitor is the default output device
Q. wtmp and utmp files contain:
Q. At start of process execution, STDOUT & STDERR
Q. How do the user gets the help about the command “cp”?
Q. What control character signals the end of the input file?
Q. What are the sizes of (Integer/Long/Pointer) in LP64 programming model?
Q. x86-32 uses which programming model?
Q. Which of the following statement is FALSE?
Q. What command is used to halt a Linux system?
Q. Which of the following tool allows the user to change the default X Window desktop?
Q. What command can be used to get information about yourself?
Q. Which of the following tool is used to partition your hard drive?
Q. How many extended partitions can exist on one drive?
Q. ____ tool allows you to change your default X Window desktop.
Q. What command is used to query for a specific package with RPM?
Q. How many primary partitions can exist on one drive?
Q. The agency that sits between the user and the LINUX system is called the
Q. Physical partitioning can be done using:
Q. An ordered list is a ...................... list and an unordered list is a ................. list.
Q. The leading bit pattern of class B network is ..................
Q. WSFTP is an example of ........................... program.
Q. Once the email is sent, the message is broken into pieces called ..................
Q. Whichg of the following is used to create web pages?
Q. How to add alternative text for an Image?
Q. Which of the following is correct to set "Black" color as Background of page?
Q. Which of the following is the correct regarding meta tag in HTML?
Q. Which of the following is correct HTML for inserting an image?
Q. How to define the link should open in new page in HTML?
Q. Choose the correct HTML code to create an email link?
Q. What is the correct syntax in HTML for creating a link on a webpage?
Q. Outlook Express is a _________
Q. Which attribute is used to name an element uniquely?
Q. What is the correct HTML for making a hyperlink?
Q. A webpage displays a picture. What tag was used to display that picture?
Q. Which of the following is not a pair tag?
Q. What is the correct HTML for making a hyperlink?
Q. The up level browser will perform validation on the client, using the _________ and _____________
Q. The validation control has ____________ control.
Q. We can attach _________ validation control to an input control
Q. The main ASP.NET page class is derived from the ____________ class
Q. Only ___________ amount of processing time is needed for data conversion.
Q. The ADO.NET provides greater case of ___________
Q. The various possible values of dock property are_________
Q. The node is also called as ______________
Q. A machine on a network is called ________
Q. The text files are helpful in __________ and ____________ textual data.
Q. The Buffered Stream class is a ________ of the Stream class.
Q. A buffer is a block of bytes in memory used to ___________
Q. The file steam class is designed specifically for reading and writing_______________ files.
Q. The stream class has been designed to provide functional features for ________ and __________.
Q. All IO classes that represent streams are derived from the ______ class.
Q. The second type of streams is used to represent __________
Q. The first type of streams is specially used to represent _________
Q. The size of long is___________.
Q. An instance of a reference type variable is allocated memory on_______.
Q. An instance of a value type variable is allocated memory on_______.
Q. The size of integer is___________.
Q. In the case of access modifiers___________.
Q. In case of components and namespaces,
Q. In the case of a component,
Q. A namespace can contain___________.
Q. An indexer________________.
Q. A property________________.
Q. A static constructor_____________.
Q. Overloaded constructors will have________.
Q. An instance class member is referred by using the format____________.
Q. In case of the Params type parameter____________.
Q. The out type parameters can be used_______________.
Q. The ref type parameters are____________.
Q. The parameters of a method __________.
Q. The arrays involved in a jagged array_____________.
Q. Which one of the following statements about code debugging is correct?
Q. In VC#.NET project files are grouped into a _____________.
Q. The ______________ enables to move through the code very quickly.
Q. Home page in VS.NET is also known as__________.
Q. The VC#.NET language________________.
Q. Which one of the following JIT compilers produce highly optimized code?
Q. The code that requires the CLR at runtime for the execution is known as the ________.
Q. The Garbage Collection solves_____________.
Q. The purpose of JIT compiler is to convert____________.
Q. The compiled version of a VC#.NET program will be in_______________.
Q. How can you prevent inheritance from a class in C#.NET ?
Q. The ______ are the Graphical User Interface (GUI) components created for web based interactions..
Q. Which of these can be overloaded?
Q. Struct’s data members are ____________ by default.
Q. Which one of the following statements is correct?
Q. Which of the following statements is correct about constructors?
Q. A _____ is any valid C# variable ending with a colon.
Q. The character pair?: is an________________available in C#.
Q. _________ are reserved, and cannot be used as identifiers.
Q. Which of the following statements correctly define .NET Framework?
Q. Choose the namespace in which the interface IEnumerable is declared?
Q. ADO.NET is the data access component of Microsoft’s .NET framework that enables you to
Q. Which of the following is a definition of a database?
Q. Which of following statement are correct about functions?
Q. How many types of compilers availbale under CLR?
Q. Which of the following statements correctly define .NET Framework?
Q. Code that targets the Common Language Runtime is known as
Q. An ____ is a group of contiguous or related data items that share a common name.
Q. The method used to set Fonts is
Q. ------------------- is an example of container class
Q. Which package consist an applet class?
Q. The default layout manager of a Frame is
Q. What are the sequences of method executed when an Applet starts execution?
Q. Which of these interfaces define a method itemStateChanged()?
Q. Which of these interfaces define a method actionPerformed()?
Q. Which of these methods can be used to obtain the command name for ActionEvent object?
Q. Which of these events is generated when a button is pressed?
Q. Which of these class is super class of all AWT events?
Q. Which of these methods are used to register a keyboard event listener?
Q. What is an event in delegation event model used by Java programming language?
Q. Which of these packages contains all the classes and methods required for event handling in Java?
Q. Which of these methods can be used to output a string in an applet?
Q. Whenever the applet requires to redraw its output, it is done by using method
Q. DataInputStream class contains methods to read________
Q. The _______ class is used to read characters from the file:
Q. The _______ class is used to write bytes to a file:
Q. Java supports input/output of data through the classes included in the _______ package:
Q. Which of these classes is related to all the exceptions that cannot be caught?
Q. Which of these classes is related to all the exceptions that can be caught by using catch?
Q. Which of the following package stores all the standard java classes? a) jav
Q. Which of these is not a correct statement?
Q. What is the value of the expression 2 & 3 ?
Q. What is the error in this code? byte b = 50; b = b * 50;
Q. Which method is used to change the mode or permissions/access list of a file?
Q. Which of the method is used to returns the contents of the file line by line?
Q. Which of the following is correct difference between foreach and readlines?
Q. Which method is used to write content in the file ?
Q. What is the syntax to open file in ruby?
Q. What is the syntax to close file in ruby?
Q. What will be output for the following code?
Q. Which statement can be used to take any input from the user from standard screen?
Q. What will be output for the following code?
Q. Which of the following is not correct method class IO provides?
Q. Which function is used by perl for reversing a string?
Q. What is inside the wtmp and utmp files?
Q. What is the core of the operating system?
Q. In UNIX, the keyboard is the default input device and the screen is the default output device ?
Q. Applications communicate with the kernel using ________ ?
Q. Which of the following interacts directly with the system hardware?
Q. The signal sent to a process when the “Ctrl-C” key is pressed is ______
Q. Which of the following values for the STAT column of the “ps” command is not true?
Q. When a child process terminates before the parent process closes, which of the following is true?
Q. What signal is sent by the “kill -9” command?
Q. We can get information about a process in the current shell by using ____?
Q. If a program running in the background tries to read from STDIN
Q. How to run a background process?
Q. How many lines maximum can be defined for the dropped capital?
Q. Thesaurus tools are used in MS word to ______
Q. Which bar is usually located below the title bar which provides options classified by category?
Q. What happens in the memory with the following code?
Q. The external JavaScript file must contain the <script> tag?.
Q. The behaviour of the instances present of a class inside a method is defined by
Q. If you want to redo an action in a document, then press
Q. Which of the following class in Bootstrap is used to create a button as a link?
Q. In JavaScript which of the following is used to declare variable
Q. What will be the output of the following code snippet?
Q. What is the use of the <noscript> tag in Javascript?
Q. What will be the output of the following JavaScript code?
Q. What among the following is an appropriate event handler for input text among the below options ?
Q. The regular expression to match any one character not between the brackets is __________
Q. What is the role of the "continue" keyword in the following piece of JavaScript code?
Q. Evaluate the following expression :
Q. An operator function is created using _____________ keyword.
Q. What is the correct definition of an array?
Q. What is the output of this expression, 3*1**3?
Q. Which is the exponentiation operator in JavaScript?
Q. What is the output of the Java code snippet?
Q. What are the different types of Pop up boxes available in JavaScript?
Q. Which of the following number object function returns the value of the number?
Q. Which of the following is not possible statically in C language?
Q. Default font size of HTML is .......................
Q. The attribute .................. of <BODY> tag sets color of hypertext links.
Q. The attribute .................. of <BODY> tag sets color of hypertext links.
Q. ....................... is a uniform naming scheme for locating resources on the web.
Q. ...................... is the incoming e-mail server.
Q. Which of the following protocol is used for e-mail services.
Q. A ............................. is a symbolic name a network administrator assigns to a machine.
Q. The Internet uses the ........................ as the protocol engine.
Q. Which of the following is correct to align H1 tag to Right Alignment
Q. JavaScript Code can be called by using
Q. Which of the following is not considered as an error in JavaScript?
Q. The escape sequence ‘\f’ stands for _________
Q. The snippet that has to be used to check if “a” is not equal to “null” is _________
Q. The statement p===q refers to _________
Q. JavaScript is a _______________ language
Q. What would be the most appropriate output for the following code snippet?
Q. A conditional expression is also called a
Q. What is block statement in JavaScript?
Q. When an empty statement is encountered, a JavaScript interpreter
Q. The “var” and “function” are __________.
Q. What happens in the following javascript code snippet?
Q. The enumeration order becomes implementation dependent and non-interoperable if:
Q. What is the output of the following program :
Q. What is the output of the following program :
Q. What is the output of the expression : 3*1**3
Q. What is the output of the following program :
Q. Which of these is not a core data type?
Q. What will initialize the list of arguments in stdarg.h header file?
Q. Using which annotation non visible or private method can be tested?
Q. Which environment variable is used to specify the path to maven?
Q. Which of the below is a source code management tool?
Q. Can we run Junits as a part of Jenkins job?
Q. Which of the following is not true for Ant?
Q. In a 32-bit compiler, which 2 types have same size?
Q. What is the size of float in a 32-bit compiler?
Q. Loss in precision occurs for typecasting from____________.
Q. In the following C code, the union size is decided by?
Q. %f access specifier is used for ________.
Q. Select the odd one out with respect to type?
Q. What will be the output of the following C code?
Q. What will be the output of the following C code?
Q. Which of the following % operation is invalid?
Q. Which data type is suitable for storing a number like? 25.00002500025
Q. Modulus for float could be achieved by?
Q. Predict the data type of the following mathematical operation? 2 * 9 + 3 / 2 . 0
Q. What is the output of this C code?
Q. Which of the following is the correct output for the program given below?
Q. Which of the following is the correct output for the program given below?
Q. Which of the following is valid range of long double ?
Q. Which of the following is the correct output for the program given below?
Q. What is the range of a signed char variable in C?
Q. Which of the following is the correct output for the program given below?
Q. What is the value of character constant 'A' of ASCII character set?
Q. What is a standard library function to read 1 char at a time?
Q. What is the first stage of compilation of a C program?
Q. What indicates the content in file is HTML when delivered on the network.
Q. The development environment offers which standard construct for data validation