C Programming Concepts Quiz

What is the purpose of a function header in C programming?

• To declare the function's name, return type, and parameters.

• To define the main function

• To import external libraries

• To print the output of the function

Explain the process of making a function call in C programming.

• Specify the function name followed by parentheses containing any required arguments.

• Use the function name as a variable without any parentheses

• Specify the function name followed by square brackets containing any required arguments

• Declare the function name without parentheses

What is a function prototype and why is it used in C programming?

• It is a declaration of a class that specifies the class's name, attributes, and methods. It is used to define classes in C programming.

• It is a declaration of a constant that specifies the constant's name and value. It is used to define constants in C programming.

• It is a declaration of a variable that specifies the variable's name, type, and value. It is used to initialize variables in C programming.

• It is a declaration of a function that specifies the function's name, return type, and parameters. It is used to inform the compiler about the existence of the function before it is used in the program.

How are pointers used in C programming? Provide an example.

• Pointers are used to perform mathematical operations in C programming

• Pointers are used to create new variables in C programming

• Pointers in C programming are used to store the memory address of variables. They are used to access and manipulate data using the address of the data rather than the data itself.

• Pointers are used to access data directly from the input/output devices in C programming

What are arrays in C programming and how are they used?

• Arrays are used to store only one value of any data type in C programming.

• Arrays are used to perform mathematical operations in C programming.

• Arrays are used to store multiple values of different data types under a single name in C programming.

• Arrays are used to store multiple values of the same data type under a single name in C programming.

Explain the concept of using pointers with arrays in C programming.

• Arrays cannot be passed to functions using pointers

• Pointers are not compatible with arrays in C programming

• Pointers allow for direct access to array elements and can be used to pass arrays to functions efficiently.

• Pointers can only access the first element of an array

What information is included in a function header in C programming?

• The return type and parameters

• The function name and return type

• The function name and parameters

• The function name, return type, and parameters

Describe the steps involved in making a function call in C programming.

• Create, initialize, and execute the function

• Declare, define, and call the function

• Call, execute, and complete the function

• Define, execute, and terminate the function

Why is it important to declare a function prototype in C programming?

• To allow the compiler to perform type checking and ensure correct usage of the function.

• To slow down the program execution

• To make the code more difficult to read

• To confuse the compiler

Give an example of using pointers in C programming to manipulate data.

• int *ptr; // declaring a pointer variable int num = 10; // declaring a normal variable ptr = # // assigning the address of 'num' to the pointer variable *ptr = 20; // changing the value of 'num' through the pointer

• ptr = num; // assigning the value of 'num' to the pointer variable

• int *ptr; // declaring a normal variable

• ptr = # // assigning the address of 'num' to the pointer variable