C Programming Quiz

What is the default return type of a function in C if no return type is specified?

• void

• int

• float

• char

Which keyword is used to explicitly return a value from a function?

• return

• break

• exit

• stop

What is the scope of a variable declared inside a function in C?

• Global

• Block

• Local

• Static

What is the correct syntax for defining a function in C?

• return_type function_name(parameters) { function_body }

• function_name(parameters) return_type { function_body }

• function_name { function_body } return_type

• return_type { function_body } function_name(parameters)

What happens if a function is called but not defined in C?

• Compilation error

• Runtime error

• Undefined behavior

• No error

Which of the following is a valid function prototype in C?

• int sum(int, int);

• sum(int, int);

• int sum;

• sum(int a, int b)

Which of the following statements about global variables is true?

• They can only be accessed in the function where they are declared

• They retain their value throughout the program execution

• They must be declared inside a function

• They cannot be modified once initialized

What is the scope of a static variable declared inside a function?

• Local to the function but retains its value between function calls

• Global across all functions

• Available only inside loops

• Destroyed after the function ends

If a global and a local variable have the same name inside a function, which one takes precedence?

• Global variable

• Local variable

• It depends on the compiler

• Both are treated equally

What will happen if a function is called with fewer arguments than required?

• Compilation error

• Runtime error

• Undefined behavior

• It executes with default values