C Programming Quiz

Which of the following is the correct syntax to print "Hello, World" in C?

• echo("Hello, World");

• printf("Hello, World");

• cout << "Hello, World";

• print("Hello, World");

Which of the following is a correct variable declaration in C?

• int 1number;

• float value;

• char = 'A';

• int; x

What is the output of the following code? int a = 5; printf("%d", a++);

• 6

• 5

• Error

• Garbage value

Which keyword is used to define a constant in C?

• const

• constant

• immutable

• final

What is the size of int on a 32-bit system (typically)?

• 2 bytes

• 8 bytes

• 4 bytes

• 1 byte

Which of the following is a correct comment in C?

• # This is a comment

• // This is a comment

• -- This is a comment

What will be the output of the code below? int x = 10; int y = 3; printf("%d", x / y);

• 3.33

• 3

• 0

• Error

Which header file is required for using printf() and scanf()?

• stdio.h

• conio.h

• math.h

• stdlib.h

Which loop is guaranteed to execute at least once?

• for

• while

• do...while

• none of the above

Which operator is used to access the value at the address stored in a pointer?

• &

• *

• ->

• @