Set - 2

What is the purpose of the 'volatile' keyword in C?

• It indicates that a variable may be changed by an external process

• It ensures that a variable is always initialized to zero

• It specifies that a variable cannot be modified

• It makes a variable immune to pointer arithmetic

What is the purpose of the 'restrict' keyword in C?

• To restrict the access to a variable

• To specify that a pointer is not aliased

• To restrict the use of the 'goto' statement

• To restrict the size of an array

#include <stdio.h>

#define square(x) x*x

int main() {

int result = square(3 + 2);

printf("%d", result);

return 0;

}

• 25

• Error

• 13

• 11

What is the purpose of the '__FUNCTION__' macro in C?

• To return the current function name

• To return the current file name

• To return the current date and time

• To return the current line number

If the area of a square is 64 square units, what is the length of one side?

• 6

• 16

• 8

• 10

The sum of three consecutive odd numbers is 63. What is the smallest of these numbers?

• 21

• 19

• 25

• 28

A train travels 200 kilometers in 4 hours. What is its average speed?

• 55

• 50

• 40

• 60

What does the following code snippet do?

int main() {

int i = 10;

printf("%d", ~i);

return 0;

}

• 10

• -11

• 8

• 6

What is the output of the following code?

#include <stdio.h>

int main() {

int i = 0;

for (; i < 5; i++)

;

printf("%d", i);

return 0;

}

• 6

• 0

• 4

• 5

If a car depreciates by 20% each year, what will be its value after two years if it was initially worth $10,000?

• $8,000

• $6,800

• $7,200

• $6,400