C Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

C Interview Questions

Questions Answers Views Company eMail

What is the difference between a structure and a union?

2 1095

How can you dynamically allocate memory in C?

2 976

What are macros in C?

2 811

What is a segmentation fault?

2 866

What is the use of the sizeof operator?

2 1011

Explain the difference between fopen() and freopen().

2 905

What is the difference between calloc() and realloc()?

1 857

Explain #pragma in C.

1 720

What are dangling pointers?

1 712

What is undefined behavior?

1 749

What is the use of the restrict keyword?

1 675

What is an lvalue and an rvalue?

1 771

Can a program have multiple main() functions?

1 938

What is the output of printf("%d", printf("Hello"));?

1 830

Why is C called a middle-level language?

1 726

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Un-Answered Questions { C }

What do you mean by command line argument?

1180

Is that possible to store 32768 in an int data type variable?

1080

What is the general form of function in c?

1022

FORMATTED INPUT/OUTPUT functions are a) scanf() and printf() b) gets() and puts() c) getchar() and putchar() d) all the above

1120

Can we change the value of #define in c?

1000

What is meant by type casting?

1054

What is a pragma?

1130

What is hungarian notation? Is it worthwhile?

1225

What are the different data types in C?

1205

What is static identifier?

1224

why wipro wase

2313

Can true be a variable name in c?

1043

Write a code to achieve inter processor communication (mutual exclusion implementation pseudo code)?

1121

What do you mean by c what are the main characteristics of c language?

1033

What is a shell structure examples?

1103

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