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

C Interview Questions

Questions Answers Views Company eMail

How to develop software using "c" programming?

IBM, TCS,

1 10165

regarding pointers concept

2040

what will be the out put. #include void main() { printf("Output:"); printf(1+"vikashpatel"); }//output: ikashpatel

V2 Solutions,

1 4619

write an algorithm and c program to add two 2x2 matrics

2 15518

in one file global variable int i; is declared as static. In another file it is extern int i=100; Is this valid ?

NetApp,

2 6547

if function is declared as static in one source file, if I would like to use the same function in some other source file...is it possible....how ?

NetApp,

2 10889

Q. where is the below variables stored ? - volatile, static, register

Bosch,

3 13919

Is the below things valid & where it will be stored in memory layout ? static const volatile int i; register struct { } ; static register;

Bosch,

2 5394

write a program to find the frequency of a number

Infosys,

4 25089

whats the use of header file in c?

2 5406

write a c program for print your name .but,your name may be small letter mean print a capital letter or your name may be capital letter mean print a small letter .example \\enter ur name : sankar The name is: SANKAR (or) enter your name:SAnkar The name is:saNKAR

5 14989

Draw a diagram showing how the operating system relates to users, application programs, and the computer hardware ?

2580

discuss the steps needed to get a program from source code to executable in a system?

1 4818

Why Modern OS are interrupt driven?Give an example

3 26430

Taking an example,differentiate b/w loader and linker ?

1 5396

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Un-Answered Questions { C }

What is the sizeof () operator?

1086

How many bytes is a struct in c?

1166

What is string function c?

1025

What is the purpose of the following code? Is there any problem with the code? void send(int count, short *to, short *from) { /* count > 0 assumed */ register n = (count + 7) / 8; switch (count % 8) { case 0: do { *to = *from++; case 7: *to = *from++; case 6: *to = *from++; case 5: *to = *from++; case 4: *to = *from++; case 3: *to = *from++; case 2: *to = *from++; case 1: *to = *from++; } while (--n > 0); } }

2499

Why is extern used in c?

1092

What are header files? What are their uses?

1217

in linking some of os executables are linking name some of them

2133

find out largest elemant of diagonalmatrix

2251

What is an array in c?

1053

I heard that you have to include stdio.h before calling printf. Why?

1067

in multiple branching construct "default" case is a) optional b) compulsarily c) it is not include in this construct d) none of the above

1055

write a programming in c to find the sum of all elements in an array through function.

2177

How the c program is executed?

1155

A collection of functions,calls,subroutines or other data a) library b) header files c) set of files d) textfiles

1179

What are structures and unions? State differencves between them.

1177

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