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 time and space complexities of merge sort and when is it preferred over quick sort?

Amazon,

1083

Write a function which takes as parameters one regular expression(only ? and * are the special characters) and a string and returns whether the string matched the regular expression.

Amazon,

1098

Differentiate between a structure and a union.

Zensar,

1292

Explain that why C is procedural?

Maveric, Verifone,

1145

What is array in C

1164

write a program fibonacci series and palindrome program in c

Aditi Placement Service,

1046

What is volatile, register definition in C

Cognizant,

1109

The difference between printf and fprintf is ?

Baan Infotech,

1289

What does the file stdio.h contain?

1069

What does #pragma once mean?

Celstream,

1166

What is the ANSI C Standard?

Celstream,

1269

What's the difference between constant char *p and char * constant p?

Celstream,

1153

Why are some ANSI/ISO Standard library routines showing up as undefined, even though I've got an ANSI compiler?

Celstream,

1133

what are the advantages of a macro over a function?

TCS,

1146

what does static variable mean?

TCS,

1109

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Un-Answered Questions { C }

write a program to concatenation the string using switch case?

2107

What is variables in c?

1054

Explain threaded binary trees?

1159

Why doesnt this code work?

1065

What is file in c preprocessor?

1149

Explain that why C is procedural?

1145

What is the use of putchar function?

1057

Explain pointer. What are function pointers in C?

1079

How do I copy files?

1059

What are the valid places to have keyword “break”?

1091

How many keywords are there in c?

1078

What is a far pointer in c?

1047

Did c have any year 2000 problems?

1112

What is indirection?

1095

I was asked to write a program in c which when executed displays how many no.of clients are connected to the server.

2372

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