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Programming Portal MCQs [112]

You will find all MCQs which are added in Programming Portal by Neha Sharma

Q. What is consumer tag in RabbitMQ?

Q. Scenario: You want messages to expire and go to another queue. What should be configured?

Q. What is correlationId used for?

Q. What is RPC pattern in RabbitMQ?

Q. Scenario: You need to process messages in parallel but limit concurrency. What should you use?

Q. What is message redelivery flag?

Q. Scenario: Messages must not be duplicated. What mechanism helps?

Q. Which acknowledgement mode auto-acknowledges messages?

Q. What is a quorum queue?

Q. Scenario: You want strict ordering of messages. What should you ensure?

Q. What is lazy queue in RabbitMQ?

Q. Which plugin provides a web-based UI for RabbitMQ?

Q. Scenario: Messages are piling up in queue and consumers are slow. What is the best approach?

Q. What is the role of 'immediate' flag in RabbitMQ?

Q. What does the 'mandatory' flag do when publishing a message?

Q. What is the default exchange type in RabbitMQ?

Q. Scenario: You want to route messages based on headers instead of routing keys. Which exchange?

Q. What is federation in RabbitMQ?

Q. What is a shovel in RabbitMQ?

Q. Scenario: High throughput system needs to avoid overwhelming consumers. What should be used?

Q. What is the role of Channel in RabbitMQ?

Q. Which Spring Boot property configures RabbitMQ host?

Q. Scenario: You want to delay message processing for a few seconds. What can you use?

Q. What is message priority in RabbitMQ?

Q. Which exchange ignores routing keys completely?

Q. What is the difference between exclusive and durable queues?

Q. Scenario: A system needs guaranteed delivery even if RabbitMQ crashes. What should be ensured?

Q. What is the purpose of 'auto-delete' queues?

Q. Which feature helps avoid message loss when routing fails?

Q. What happens if you publish a message to an exchange with no bound queues?

Q. Scenario: You want one message processed only once even with multiple consumers. What should you use?

Q. What is the purpose of a routing key?

Q. Which Spring Boot configuration enables RabbitMQ support?

Q. What is a dead-letter queue used for?

Q. Scenario: You want to route messages like 'order.created' and 'order.updated'. Which exchange type is best?

Q. Which property ensures messages are not lost during broker restart?

Q. What is publisher confirm in RabbitMQ?

Q. Scenario: A consumer crashes before acknowledging a message. What happens?

Q. What is the use of message TTL (Time-To-Live)?

Q. Which exchange type is best suited for broadcasting logs to multiple services?

Q. What will happen if a queue is not bound to any exchange?

Q. What is the role of RabbitTemplate in Spring Boot?

Q. Which annotation is used in Spring Boot to listen to a RabbitMQ queue?

Q. What is the purpose of 'prefetch count' in RabbitMQ?

Q. In RabbitMQ, what happens when multiple consumers listen to the same queue?

Q. What is a dead-letter exchange?

Q. What is the default port for RabbitMQ?

Q. What is a durable queue?

Q. Which exchange type uses pattern matching?

Q. What happens if a message is not acknowledged?

Q. What is message acknowledgment in RabbitMQ?

Q. Which exchange type broadcasts messages to all queues?

Q. What is a binding in RabbitMQ?

Q. Who receives messages from RabbitMQ?

Q. Who sends messages to RabbitMQ?

Q. What does a queue do in RabbitMQ?

Q. Which exchange type routes messages based on routing keys exactly matching?

Q. What is an exchange in RabbitMQ?

Q. Which protocol is primarily used by RabbitMQ?

Q. What is RabbitMQ?

Q. you can embed a organization chart in a slide by

Q. What will be the output of the following Python code?

Q. Which one of the following is not a keyword in Python language?

Q. Which function is called when the following Python program is executed?

Q. What will be the output of the following Python statement?

Q. What will be the output of the following Python code snippet?

Q. What is the order of namespaces in which Python looks for an identifier?

Q. What will be the output of the following Python code?

Q. What will be the output of the following Python function?

Q. Which of these is the definition for packages in Python?

Q. What will be the output of the following Python expression if x=56.236?

Q. Which of the following is not a core data type in Python programming?

Q. What will be the output of the following Python function?

Q. The following python program can work with ____ parameters.

Q. Which of the following is the use of id() function in python?

Q. Which of the following functions is a built-in function in python?

Q. What will be the output of the following Python code?

Q. Which of the following is the truncation division operator in Python?

Q. What are the values of the following Python expressions?

Q. Which of the following is true for variable names in Python?

Q. What does pip stand for python?

Q. What will be the output of the following PHP code ?

Q. What will be the output of the following PHP code ? 

Q. What will be the output of the following PHP code ? 

Q. What will be the output of the following PHP code ? 

Q. What will be the output of the following PHP code ? 

Q. What will be the output of the following PHP code ? 

Q. What will be the output of the following PHP code ? 

Q. What will be the output of the following PHP code ?

Q. What will be the output of the following PHP code ? 

Q. What will be the output of the following PHP code ?

Q. Which of the following must be installed on your computer so as to run PHP script?

Q. Which of the following php statement/statements will store 120 in variable n?

Q. What will be the output of the following php code?

Q. What will be the output of the following php code?

Q. Which of following variables can be assigned a value to it?

Q. Which of the following PHP statements will output Hello interview Mania on the screen?

Q. What will be the output of the following PHP code?

Q. What will be the output of the following PHP code?

Q. What will be the output of the following PHP code?

Q. Which of the below statements is equivalent to $sum+= $sum ?

Q. Which statement will output $x on the screen?

Q. What will be the output of the following code?

Q. What will be the output of the following PHP code?

Q. What will be the output of the following PHP code?

Q. Which of the below symbols is a newline character?

Q. Which of the conditional statements is/are supported by PHP?

Q. What will be the output of the following PHP code?

Q. Which of the looping statements is/are supported by PHP?

Q. What will be the output of the following PHP code?

Q. If $n = 25 what will be returned when (($n == 25) ? 5 : 1) is executed?

Q. What is the value of $a and $b after the function call?