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Function in C Language

⛪ Programming Language > C Programming Language

Evaluate your knowledge of functions in C programming with these multiple choice questions. Learn about the different types of functions and how to use them to write modular and organized C code. Take the quiz now! ➲ Function in C Language - Quiz

Q 1: What will be the output of the following program?

main();
{
static int var = 4 ;
printf("%d", var--);
  
   if(var)
     main();
}

A 4444........until stack overflow
B 4321
C Compiler error
D Linker Error

Q 2: The function sprintf() works like printf(), but operates on ..........

A Data file
B stderr
C string
D stdin

Q 3: Which of the following return-type cannot be used for a function in C?

A char *
B struct
C void
D none of the mentioned

Q 4: What is a recursive function in C?

A A function that calls another function
B A function that returns a pointer to another function
C A function that calls itself
D A function that takes no arguments

Q 5: Which of the following is not a valid data type for function return value in C language?

A int
B void
C float
D buit

Q 6: Which of the following is true about recursive functions in C language?

A A recursive function cannot call itself.
B A recursive function must have a base case to terminate the recursion.
C A recursive function must have a return type of void.
D A recursive function cannot be called from another function.

Q 7: Which of the following is true about function arguments in C language?

A Function arguments are always passed by value.
B Function arguments are always passed by reference.
C Function arguments can be passed by value or by reference.
D Function arguments can be passed by value, bot not by reference

Q 8: What is the purpose of a function prototype in C language?

A To define the implementation of a function.
B To declare the return type of a function.
C To declare the function name and its parameter types.
D To declare the function name and its return type.

Q 9: What is the difference between call by value and call by reference in C language?

A Call by value passes the address of the argument to the function, while call by reference passes a copy of the argument value.
B Call by value passes a copy of the argument value to the function, while call by reference passes a reference to the argument variable.
C Call by value and call by reference are the same thing.
D Call by value passes a reference to the argument variable, while call by reference passes a copy of the argument value.

Q 10: What is the return type of a function in C?

A void
B int
C char
D Both A and B and C

Q 11: What is a function prototype in C?

A A function that takes no arguments
B A declaration of a function that specifies the function's name, return type, and parameter types
C A function that returns a pointer to another function
D A function that has a variable number of arguments