Byte Buzz-Brain vs Byte IT QUIZ 2025

Which header file is required to use printf() in C?

• conio.h

• stdio.h

• stdlib.h

• string.h

Which of the following is not a valid variable name in Java?

• int totalMarks;

• int _value;

• int class;

• int $salary;

Which keyword is used to define a class in Java?

• struct

• object

• class

• define

What is the size of an int on a 32-bit machine in C?

• 2 bytes

• 4 bytes

• 8 bytes

• 1 byte

Which operator accesses structure members using a pointer in C?

• .

• ->

• &

• *

What is the default value of a boolean variable in Java?

• true

• 0

• false

• null

Which loop guarantees at least one execution?

• for

• while

• do - while

• goto

What is the output of this C code: int a = 5, b = 2; printf("%d", a % b);?

• 0

• 1

• 2

• 5

Which method converts a string to integer in Java?

• Integer.convert()

• parseInt()

• toInt()

• int.parse()

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

int main()

{

printf("Hello world");

return 0;

}

• void

• char

• int

• float