Basics of C++ - Objective Questions (MCQs) Set - 1

Questions

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Question 1.

What is the correct value to return to the operating system upon the successful completion of a program?
A. -1
B. 1
C. 0
D. Programs do not return a value.

Question 2.

What is the only function all C++ programs must contain?
A. start()
B. system()
C. main()
D. program()

Question 3.

What punctuation is used to signal the beginning and end of code blocks?
A. { }
B. -> and <-
C. BEGIN and END
D. ( and )

Question 4.

What punctuation ends most lines of C++ code?
A. . (dot)
B. ; (semi-colon)
C. : (colon)
D. ' (single quote)

Question 5.

Which of the following is a correct comment?
A. */ Comments */
B. ** Comment **
C. /* Comment */
D. { Comment }

Question 6.

Which of the following is not a correct variable type?
A. float
B. real
C. int
D. double

Question 7.

Which of the following is the correct operator to compare two variables?
A. :=
B. =
C. equal
D. ==

Question 8.

Which of the following is true?
A. 1
B. 66
C. .1
D. -1
E. All of the above

Question 9.

Which of the following is the boolean operator for logical-and?
A. &
B. &&
C. |
D. |&

Question 10.

Evaluate !(1 && !(0 || 1)).
A. True
B. False
C. Unevaluatable

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Answers

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1. C. 0

2. C. main()

3. A. { }

4. B. ;

5. C. /* Comment */

6. B. real

7. D. ==

8. E. All of the above

9. B. &&

10. A. True