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C Interview Questions And Answer

C Control Statements

How if-else control statement Works?

Explain the working of for loop.

Explain the working of while loop.

Explain the working of do-while loop.

What is a nested loop?

Explain the working of break statement?

Explain the working of continue statement?

Explain the working of goto statement?

Explain the working of switch statement?

 

C Operators

What is the difference between pre-increment (++X) & post-increment (X++)?

 

C Functions

What is function in C?

What are the advantages of function in C?

What is parameterized function in C?

Explain return statement working in.

Can we use expression with return statement?

What is the meaning of Library function in C?

 

C Recursion

What is Recursion in C?

 

C Array

What is an Array in C?

What are the types of Array in C?

What is One Dimensional Array?

What is Two Dimensional Array?

How to Copy one array to another array?

What is Global & Static Array?

 

C Pointers

What is a pointer in C?

How to initialize the pointer variable in C?

Why data type plays an important role while declaring pointer variable?

What is Null Pointer?

Is it possible to do arithmetic operations using pointer in C?

What is pointer to pointer in C?

Is it possible to access array using pointer variable?

What is Pointer to an Array?

What is Array of Pointer?

What is call by value in C?

What is call by reference in C?

Is it possible to return a pointer from function in C?

What is the difference between malloc(), calloc() & realloc() functions in C?

What is the use of free() function in C?

 

C Strings

What is a string in C?

How to calculate the length of a string?

How to copy one string to another string?

How to compare two strings?

How to concatenate two strings?

 

C Structure

What is the Structure in C?

What are the different ways to declare a structure and its variable?

How to initialize the structure variable?

What is an Array of Structure?

Is it possible to pass structure to function in C?

 

C union

What is a union in C?

 

C File

What is the File in C?

What are the types of FILE in C?

What are the modes used to open the FILE in C?

What is the use of fputc() function with FILE in C?

What is the use of fgetc() function with FILE in C?

What is the use of fputs() function with FILE in C?

What is the use of fgets() function with FILE in C?

What is the use of fprintf() function with FILE in C?

What is the use of fscanf() function with FILE in C?

What is the use of fwrite() function with FILE in C?

What is the use of fread() function with FILE in C?

What is the use of fseek() function with FILE in C?

What is the use of ftell() function with FILE in C?

What is the use of rewind() function with FILE in C?

 

C Enumeration

What is enumeration in C?

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