Mastering C Programming Concepts

What is the purpose of the C Standard Library?

• To provide a standardized set of functions for common programming tasks.

• To manage hardware resources efficiently.

• To provide a graphical user interface.

• To create a new programming language.

Name three commonly used C Standard Library functions.

• strcpy

• strlen

• free

• printf, scanf, malloc

How do you declare a function in C?

• function_name(parameter_type1 parameter_name1) return_type;

• function_name(parameter_type1, parameter_type2);

• return_type function_name(parameter_type1 parameter_name1, parameter_type2 parameter_name2, ...);

• return_type function_name(parameter_name1, parameter_name2);

What is the difference between a function declaration and a function definition?

• A function declaration introduces a function's name and parameters; a function definition includes the declaration and the implementation code.

• A function declaration and definition are the same; both are used to execute a function.

• A function declaration is used to call a function; a function definition is used to create a variable.

• A function declaration includes the implementation code; a function definition only introduces the function's name.

Explain the concept of function overloading in C.

• Function overloading is a feature that enables functions to return different types in C.

• Function overloading allows multiple functions with the same name in C.

• Function overloading can be achieved by using default parameters in C.

• Function overloading is not natively supported in C, but can be simulated using different function names or by using macros.

What is an array in C?

• An array in C is a single element of any type.

• An array in C is a collection of elements of the same type stored in contiguous memory locations.

• An array in C is a function that returns multiple values.

• An array in C is a collection of different types stored randomly.

How do you initialize an array in C?

• int arr[3] = {1, 2};

• int arr[] = {1, 2, 3};

• int arr = {1, 2, 3};

• int arr[3] = new int[3];

What are the different data types available in C?

• int, float, double, char, array, structure, union, pointer

• list

• boolean

• string

What is the size of an int data type in C on a typical system?

• 16 bytes

• 2 bytes

• 4 bytes

• 8 bytes

What is the role of a compiler in C programming?

• To optimize C code for better performance.

• To execute C code directly without translation.

• To debug C code and find errors.

• The role of a compiler in C programming is to translate C code into machine code.