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Programming Portal MCQs [141]

You will find all MCQs which are added in Programming Portal by Dharmendra Sir

Q. What is the output of the following C++ code?

Q. The object is created in _________

Q. Which class functions are called inline functions?

Q. What is the output of the following C++ code?

Q. The default value of a static variable is _____.

Q. We can create objects of type ‘abstract class’?

Q. When allocating memory dynamically in C++, the new operator returns the value _________ if the memory allocation fails.

Q. What is the output of the following C++ code?

Q. What is the output of the following C++ code?

Q. What is the output of the following C++ code?

Q. What is the output of the following C++ program?

Q. To perform file-based I/O operations, you must use the __________.

Q. Static variables in a class are initialized when _____.

Q. Which of the following statements is/are valid for dynamically allocating memory for an integer in C++?

Q. What is the output of the following C++ program?

Q. Which character is used to indicate the end of a class?

Q. Code reuse can be achieved in a C++ program using ______.

Q. What is the output of the following C++ program?

Q. How many objects can be in the same class?

Q. Choose another definition for objects:

Q. Is it mandatory to call a constructor to create an object?

Q. What is the output of the following code?

Q. If the default constructor is not defined, how will the objects of the class be created?

Q. An exception is generated using the keyword __________

Q. What is the output of the following C++ code?

Q. What is the output of the following C++ code?

Q. What is the output of the following C++ code?

Q. What is the syntax to override the + operator for class A?

Q. What is the output of the following C++ code?

Q. Choose the correct statement:

Q. What is the output of the following C++ code?

Q. What does a mutable member of a class mean?

Q. How are objects self-referenced in a class member function?

Q. What is the output of the following C++ code?

Q. Suppose the size of an integer is 4 bytes, what is the output of the following code?

Q. Which class constructor is called in the following C++ code?

Q. When “struct” is used instead of the “class” keyword, will anything change in the program?

Q. What is the use of constructors in C++?

Q. What is the correct syntax to access a static member of a class?

Q. The members of a class in C++ are by default __________

Q. Which one is a valid class declaration?

Q. What is the output of the following C++ code?

Q. What is the output of the following C++ code?

Q. Suppose the integers take 4 bytes, what is the output of the following code?

Q. What operator does a pointer object of a class use to access its data members and member functions?

Q. ___ is used to define a member of a class externally?

Q. How many access specifiers are there?

Q. What does a class contain in C++?

Q. Which is not a valid keyword in java?

Q. The Java programming language is a ________?

Q. Which is not a valid comment style in Java 

Q. What is the correct signature of the main method?

Q. A collection of methods with no implementation is called an ________.

Q. How many type of Primitive Data Types exist in Java?

Q. If you access an uninitialized local variable will result? 

Q. How integer literal can expressed binary data?

Q. Which is right way to declare Array?

Q. Which is right way to creating an array of integer?

Q. Which method of System class is used to copy array?

Q. Which keyword is used to inherit class?

Q. Overloaded methods are differentiated by

Q. Choose best option that describes Constructor.

Q. A constructor that is automatically generated in the absence of explicit constructors called?

Q. Which method is called first by an applet program?

Q. JAR stands for ________.

Q. Which of the following is NOT a keyword in Java?

Q. Which of these is supported by method overriding in Java?

Q. Which mode is used to turn on strict mode and all of the additional restrictions?

Q. he SQL mode to check for divide by zero error is

Q. What is the command to see the warning messages?

Q. For which type are illegal values converted to the appropriate ‘zero’ value?

Q. By default, MySQL clips out of range numeric values to the nearest fit value.

Q. How many of the following does not return a value?

Q. How many of the following use NULL to indicate failure?

Q. Which of these returns a string containing an error message?

Q. Which of the following returns a MySQL-specific numeric code?

Q. Which of the following returns an SQLSTATE code?

Q. Which mode prevents entry of the ‘zero’ date value in strict mode?

Q. Which keyword suppresses errors?

Q. Which mode prevents MySQL to perform full checking of date parts?

Q. Which mode is a shorthand for ‘both strict modes plus a bunch of other restrictions’?

Q. STRICT_ALL_TABLES turns on stricter checking of data values.

Q. The –protocol value ‘TCP’ runs on which operating systems?

Q. The function load_defaults() reads the option files.

Q. What does mysql_real_connect() return if it fails?

Q. The argument to the function mysql_error() is _______________.

Q. All API calls return a value.

Q. The updated MySQL extension with PHP5 is typically referred to as

Q. Which is not a property of attribute Behaviour of <Marquee> tag?

Q. When we write <img src="img.png">, what "img.png" inside double quote implies?

Q. Which css property you will use if you want to add some margin between a DIV's border and its inner text ?

Q. Which of the following is the correct CSS syntax?

Q. An organized collection of data stored in a central location is known as?

Q. Which is the default order of sort in ORDER BY clause?

Q. Which function will be used to remove only the trailing spaces from a string?

Q. Can we align a Block element by setting the left and right margins ?

Q. Using Responsive Web Design (RWD) ensures that site will display correctly in all desktop browsers and mobile devices.You used a grid-based layout and resize-able images, which is another RWD technique that you can use in responsive design?

Q. By default Hyperlinks are displayed with an underline. How do you remove the underline from all hyperlinks by using CSS code ?

Q. How will you make all paragraph elements 'RED' in color ?

Q. In MySQL, which command is used to modify the table values

Q. The maximum length of char data type is

Q. Write a query to display first_name and last_name of all employees who have their first_name starting with 'A'.

Q. Which operator is used to match column values against a list of values?

Q. Which is not an aggregate function?

Q. Which SQL function is used to find the average value of any column?

Q. Which one of the following sorts rows in SQL?

Q. Which of the following is not a keyword of MYSQL?

Q. Which of the following is not a text function?

Q. What is the size of the BIT type?

Q. What is the synonym for REAL?

Q. Which statement is used to modify data in a table?

Q. What will be returned by the given query? SELECT sign(26);

Q. What SQL clause is used to restrict the rows returned by a query?

Q. What will be returned by the given query? SELECT month('2020-05-11');

Q. Which of the following are valid column names?

Q. The term ___________ is used to refer a column.

Q. Which of the following is not a numeric function?

Q. The SQL keyword BETWEEN is used

Q. What will be returned by the given query? SELECT concat("It", "was", "ok");

Q. Which of the following is not a date function?

Q. SQL can be used to

Q. Which of the following is not a DML command?

Q. What will be returned by the given query? SELECT INSTR("INDIA", "DI");

Q. Execution on a time activated basis according to a schedule is done by

Q. Stored programs degrade database security.

Q. The character that the mysql client program recognizes as a statement delimiter is ______________

Q. With SQL, how do you select all the columns from a table named "Persons"?

Q. Which upgrade involves exporting existing data using mysqldump?

Q. Which upgrade involves shutting down the old MySQL version and replacing the old binaries?

Q. What will be returned by the given query? SELECT round(153.669, 2);

Q. What will be printed by the given query? SELECT LENGTH("WINNER");

Q. Which of the following scripts will run successfully?

Q. Which of the following is not a valid aggregate function?

Q. Which of the following is not a relational operator?

Q. Slow shutdown can be performed by setting innodb_fast_shutdown to _____________.

Q. A procedure that involves REPAIR TABLE with the USE_FRM option must be done before upgrading.

Q. The command to see the warning messages is ______________.

Q. What will be the output of the following query:Select round(59999.99,-2);

Q. The _________ statement is used to delete a table.

Q. What is the full form of SQL?

Q. MySQL is