Choose the correct answer

Introduction to C++

Functions

Evaluation

Part – 1

Choose the best answer

1. Which of the following header file defines the standard I/O predefined functions ?

A) stdio.h

B) math.h

C) string.h

D) ctype.h

2. Which function is used to check whether a character is alphanumeric or not.

A) isalpha()

B) isdigit()

C) isalnum()

D) islower()

3. Which function begins the program execution ?

A) isalpha()

B) isdigit()

C) main()

D) islower()

4. Which of the following function is with a return value and without any argument ?

A) x=display(int, int)

B) x=display()

C) y=display(float)

D) display(int)

5. Which is return data type of the function prototype of add(int, int); ?

A) int

B) float

C) char

D) double

6. Which of the following is the scope operator ?

A)>

B)&

C)%

D)::