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 4741

Define function pointers?

1 3695

How do you initialize function pointers? Give an example?

3 5093

where can function pointers be used?

2 4471

what are bitwise shift operators?

4 7631

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 6502

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

3 5823

what is the little endian and big endian?

1 3991

what is the use of fflush() function?

2 6314

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

2 7440

where does malloc() function get the memory?

1 4139

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

1 4425

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

3 7962

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

2 5637

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Un-Answered Questions { C }

In which layer of the network datastructure format change is done

1890

console I/O functions means a) the I/O operations done on disk b) the I/O operations done in all parts c) the input given through keyboard is displayed VDU screen d) none of the above

1179

What is the purpose of sprintf() function?

1133

What is the purpose of void pointer?

1036

Does free set pointer to null?

1009

Where local variables are stored in c?

1012

find the value of y y = 1.5x+3 for x<=2 y = 2x+5 for x>2

1996

What is meant by 'bit masking'?

1390

Why doesnt the call scanf work?

1195

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

1866

code for replace tabs with equivalent number of blanks

2167

How can you increase the size of a dynamically allocated array?

1192

how can f be used for both float and double arguments in printf? Are not they different types?

1072

What is the basic structure of c?

1086

What are the types of macro formats?

1125

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