What is the correct syntax to declare a variable in C?

• int num;

• int num:

• int num = 10.5;

• num int;

Which of the following is a correct C identifier?

• 1variable

• _variable1

• variable-1

• variable 1

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

• 1 byte

• 2 bytes

• 4 bytes

• 8 bytes

What's output of the the following code?

• Equal

• Not Equal

• Error

• None of this above

What will be the output of the following code?

• 5

• 6

• Compilation error

• Undefined behavior

What will be the output of the following code?

• 2 3

• 3 2

• 5 1

• 1 5

What is the output of the following code?

• 5

• 10

• Compile-time error

• Undefined behavior

What is the difference between ++i and i++ in C?

• ++i increments i after its current value is used, i++ increments i before its current value is used.

• ++i increments i before its current value is used, i++ increments i after its current value is used.

• Both are the same.

• ++i is a syntax error

What is the output of the following code?

• 5

• 4

• 20

• 1

What will be the output of the following code?

• 24

• 21

• 20

• 18