Bank IBPS SO IT C++ Question - Answer

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.

2. What is the only function all C++ programs must contain?

A. start()

B. system()

C. main()

D. program()

3. What punctuation is used to signal the beginning and end of code blocks?

A. { }

B. -> and C. BEGIN and END

D. ( and )

4. What punctuation ends most lines of C++ code?

A. .

B. ;

C. :

D. '

5. Which of the following is a correct comment?

A. */ Comments */

B. ** Comment **

C. /* Comment */

D. { Comment }

6. Which of the following is not a correct variable type?

A. float

B. real

C. int

D. double

7. Which of the following is the correct operator to compare two variables?

A. :=

B. =

C. equal

D. ==

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

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

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

4. Which of the following shows the correct syntax for an if statement?
A. if expression
B. if { expression
C. if ( expression )
D. expression if

1. What purpose do classes serve?

A. data encapsulation

B. providing a convenient way of modeling real-world objects

C. simplifying code reuse

D. all of the above

2. Which is not a protection level provided by classes in C++?

A. protected

B. hidden

C. private

D. public

3. What value must a destructor return?

A. A pointer to the class.

B. An object of the class.

C. A status code determining whether the class was destructed correctly

D. Destructors do not return a value.

4. Which of the following is a valid class declaration?

A. class A { int x; };

B. class B { }

C. public class A { }

D. object A { int x; };

5. Which functions will every class contain?

A. None

B. Constructor

C. Destructor

D. Both a constructor and a destructor