Pretest

What is the correct syntax to include a standard input-output library in C?

• • A. #include <iostream>

• • B. #include <stdio.h>

• • C. #include <stdlib.h>

• • D. #include <string.h>

What is the default return type of the main() function in C?

• void

• int

• float

• char

How do you declare a variable named count of type int in C?

• • A. int count;

• • B. count int;

• • C. variable count = int;

• • D. int count = int;

What is the purpose of the printf() function in C?

• • A. To take input from the user

• • B. To print output to the console

• • C. To store data in a file

• • D. To perform arithmetic operations

Which of the following is the correct way to write a single-line comment in C?

• • _{A. /* This is a comment*/}

• • _{B. -- This is a comment}

• • _{C. // This is a comment}

• • _{D. # This is a comment}

Which of the following is the correct syntax for a for loop in C?

• • A. for (i = 0; i < 10; i++)

• • B. for (i = 0; i < 10; i--)

• • C. for i = 0 to 10

• • D. for (i < 10; i++)

What will be the output of the following code snippet?

int x = 5; printf("%d", x++);

• 5

• 6

• undefined

• error

Which operator is used to get the address of a variable in C?

• *A. *

• • B. &

• • C. @

• • D. #

What is the result of the following expression: 10 % 3?

• • A. 1

• • B. 3

• • C. 0

• • D. 10

How do you define a function named add that takes two integers and returns their sum?

• • A. int add(int a, int b) { return a + b; }

• • B. function add(int a, int b) { return a + b; }

• • C. void add(int a, int b) { return a + b; }

• • D. int add(a, b) { return a + b; }