C++ Programming Quizs Question and Answers – Basics

Q 1.What are the formal parameters in C++?
A. Parameters with which functions are called
B. Variables that are never used in the function
C. Variables other than passed parameters in a function
D. Parameters which are used in the definition of the function

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Answer:-D. Parameters which are used in the definition of the function

Explanation

Formal parameters are those which are used in the definition of a function. They are the parameters that represent the actual parameters passed and they are the one which is used inside the function.

Q 2. Which function is used to read a single character from the console in C++?
A. scanf(ch)
B. getline(ch)
C. read(ch)
D. cin.get(ch)

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Answer:-D. cin.get(ch)

Explanation

C++ provides cin.get() function to read a single character from console whereas others are used to read either a single or multiple characters.

Q 3. Which function is used to write a single character to console in C++?
A. cout.putline(ch)
B. cout.put(ch)
C. write(ch)
D. printf(ch)

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Answer:-B. cout.put(ch)

Explanation

C++ provides cout.put() function to write a single character to console whereas others are used to write either a single or multiple characters.

Q 4. What are the escape sequences?
A. Set of characters that convey special meaning in a program
B. Set of characters that whose use are avoided in C++ programs
C. Set of characters that are used in the name of the main function of the program
D. Set of characters that are avoided in cout statements

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Answer:-A. Set of characters that convey special meaning in a program

Explanation

Escape sequence is a set of characters that convey a special meaning to the program. They are used to convey a meaning which cannot be conveyed directly.

Q 5.Which of the following escape sequence represents carriage return?
A. \n
B. \r
C. \n\r
D. \c

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Answer:-B. \r

Explanation

\r is used to represent carriage return which means move the cursor to the beginning of the next line.

Q 6. Which of the following escape sequence represents tab?
A. \t
B. \t\r
C. \b
D. \a

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Answer:-A. \t

Explanation

\t is used to represent tab which means a set of blank spaces in a line.

Q 7.Who created C++?
A. Brian Kernighan
B. Dennis Ritchie
C. Ken Thompson
D. Bjarne Stroustrup

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Answer:-D. Bjarne Stroustrup

Explanation

Bjarne Stroustrup is the original creator of C++ during 1979 at AT&T Bell Labs.

Q 8. Which of the following is called insertion/put to operator?
A. <<

B. >>
C. >
D. <

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Answer:-A. <<

Explanation

<< operator is called insertion or put to operator i.e. insert/put things to console/files.

Q 9. Which of the following is called extraction/get from operator?
A. <<

B. >>
C. >
D. <

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Answer:- B. >>

Explanation

>> operator is called extraction or get from operator i.e. extract/get things from console/files.

Q 10. A language which has the capability to generate new data types are called ____
A. Overloaded
B. Extensible
C. Encapsulated
D. Reprehensible

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Answer:-B. Extensible

Explanation

Languages that can produce/generate new data types are called extensible languages as they have the ability to handle new data types.

Q 11. Which of the following is used for comments in C++?
A. // comment
B. /* comment */
C. both // comment or /* comment */
D. // comment */

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Answer:-C. both // comment or /* comment */

Explanation

Both the ways are used for commenting in C++ programming. // is used for single line comments and /* … */ is used for multiple line comments.

Q 12. What are the actual parameters in C++?
A. Variables other than passed parameters in a function
B. Parameters which are used in the definition of a function
C. Parameters with which functions are called
D. Variables that are never used in the function

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Answer:-C. Parameters with which functions are called

Explanation

Actual parameters are those using which a function call is made i.e. which are actually passed in a function when that function is called.

Q 13 . Which of the following is the correct syntax of including a user defined header files in C++?
A. > #include “userdefined”
B. #include <userdefined>
C. #include <userdefined.h
D. #include [userdefined]

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Answer:-A. > #include “userdefined”

Explanation

C++ uses double quotes to include a user-defined header file. The correct syntax of including user-defined is #include “userdefinedname”

Q 14. Which of the following is a correct identifier in C++?
A. 7var_name
B. 7VARNAME
C. $var_name
D. VAR_1234

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Answer:-D. VAR_1234

Explanation

The rules for writing an identifier is as follows: i) may contain lowercase/uppercase letters, digits or underscore(_) only ii) should start with a non-digit character iii) should not contain any special characters like @, $, etc.

Q 15. Which of the following is called address operator?
A. *
B. &
C. _
D. %

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Answer:-B. &

Explanation

& operator is called address operator and is used to access the address of a variable.