C Programming Quiz

What is the common file extension for C language files?

• .cpp

• .c

• .java

• .py

Which of the following is the correct way to declare a variable in C?

• var x = 10;

• int x = 10;

• x = 10;

• define x = 10;

Which symbol is used to indicate a single-line comment in C?

• //

• /*

• –

What is the output of printf(“%d”, 5/2); in C?

• 2.5

• 2

• 3

• Error

Which header file is required to use the printf() function?

• math.h

• string.h

• stdio.h

• stdlib.h

What is the size of the int data type in C (on most modern systems)?

• 1 byte

• 2 bytes

• 4 bytes

• 8 bytes

Which of the following is NOT a valid variable name in C?

• _variable

• variable1

• 1variable

• variable_name

What is the correct way to define a constant in C?

• const int MAX = 100;

• #define MAX 100

• Both A and B

• None of the above

What is the output of printf(“%d”, ‘B’); in C?

• B

• 66

• Error

• 0

Which operator is used to access the value at an address in C?

• &

• –

• ->

• .