C Interview Questions – Set 05

The argument passed to the main() function while executing the program is known as command line argument.

Uses of C function are:

• C functions are used to avoid the rewriting the same code again and again in our program.
• C functions can be called any number of times from any place of our program.
• When a program is divided into functions, then any part of our program can easily be tracked.
• C functions provide the reusability concept, i.e., it breaks the big task into smaller tasks so that it makes the C program more understandable.

A pointer which can access all the 16 segments (whole residence memory) of RAM is known as far pointer. A far pointer is a 32-bit pointer that obtains information outside the memory in a given section.

It is 32 characters ideally but implementation specific.

• The structure is a user-defined data type that allows storing multiple types of data in a single unit. It occupies the sum of the memory of all members.
• The structure members can be accessed only through structure variables.
• Structure variables accessing the same structure but the memory allocated for each variable will be different.

C is called a mid-level programming language because it binds the low level and high -level programming language. We can use C language as a System programming to develop the operating system as well as an Application programming to generate menu driven customer driven billing system.