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

C Interview Questions

Questions Answers Views Company eMail

what does ‘Bus Error’ mean?

ABC,

1 4738

Define function pointers?

1 3690

How do you initialize function pointers? Give an example?

3 5091

where can function pointers be used?

2 4469

what are bitwise shift operators?

4 7624

what are bit fields? What is the use of bit fields in a structure declaration?

Flextronics, TISL, Virtusa,

2137

what is the size of an integer variable?

4 6499

what are the files which are automatically opened when a c file is executed?

3 5820

what is the little endian and big endian?

1 3991

what is the use of fflush() function?

2 6313

what is the difference between exit() and _exit() functions?

2 7438

where does malloc() function get the memory?

1 4137

what is the difference between malloc() and calloc() function?

1 4423

what is the difference between postfix and prefix unary increment operators?

3 7958

what is the difference between strcpy() and memcpy() function?

2 5636

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Un-Answered Questions { C }

Explain the difference between the local variable and global variable in c?

1075

What is main return c?

1002

Is printf a keyword?

1203

What are global variables and how do you declare them?

1102

Explain what are the __date__ and __time__ preprocessor commands?

1124

How does selection sort work in c?

1041

Describe dynamic data structure in c programming language?

1097

What language is lisp written in?

1269

swap 2 numbers without using third variable?

1135

What are the main characteristics of c language describe the structure of ac program?

1213

What is meant by errors and debugging?

1110

In the DOS enveronment, normal RAM that resides beyond the 1mb mark. a) expanded memory b) swapped memory c) Extended memory d) none

1206

What does malloc () calloc () realloc () free () do?

1065

Explain what is the benefit of using const for declaring constants?

1038

Explain the Difference between the New and Malloc keyword.

1139

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