C Programming Functions Quiz

What is a function in C programming?

• A type of loop

• A series of instructions with a specific purpose

• A variable that stores data

• A data structure

Which of the following is NOT a type of function in C?

• Predefined functions

• Static functions

• User defined functions

• Library functions

What does the 'return' statement do in a function?

• Prints output to the screen

• Returns control to the calling function

• Declares a variable

• Ends the program

What is the purpose of function declaration?

• To call the function

• To create a loop

• To define the function's body

• To specify the function's return type and parameters

In C, what are formal parameters?

• Variables used in function calls

• Variables defined in the function header

• Local variables

• Global variables

What is the output of the function call 'add(5, 10)' if 'add' is defined to return the sum?

• Error

• 5

• 15

• 10

Which of the following correctly describes 'Call by Value'?

• Values of actual parameters are copied to formal parameters

• Addresses of actual parameters are passed

• Only pointers are used

• No parameters are passed

What is a recursive function?

• A function that cannot return a value

• A function that calls itself

• A function that uses loops

• A function that calls another function

What is the purpose of static variables in C?

• To store temporary data

• To create arrays

• To declare global variables

• To maintain their value between function calls

Which of the following is an example of a library function?

• printf()

• main()

• userFunction()

• add()