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 void main() and int main()?

1 179

What are static functions?

1 176

How to avoid buffer overflow?

1 177

What are function pointers? Provide an example.

1 178

Explain command-line arguments in C.

1 156

What are static variables, and where are they stored?

1 29

What is a const pointer, and how does it differ from a pointer to a const?

1 30

. Explain the differences between fork() and exec() in C

1 184

How does the C program handle segmentation faults?

1 205

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

1 181

Explain the concept of "dangling pointers" in C.

1 210

How do you prevent buffer overflows in C?

1 181

What is the restrict keyword in C?

1 176

Explain the difference between struct and union.

1 181

What is the purpose of #pragma directives in C?

1 183

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Un-Answered Questions { C }

why arguments can generally be passed to functions a) sending the values of the arguments b) sending the addresses of the arguments c) a & b d) none of the above

763

What is derived datatype in c?

745

What is the difference between specifying a constant variable like with constant keyword and #define it? i.e what is the difference between CONSTANT FLOAT A=1.25 and #define A 1.25

1594

I need a help with a program: Write a C program that uses data input in determining the whole of points A and a whole of circles B. Find two points in A so that the line which passes through them, cut through the maximum number of circles.

1602

What is 2 d array in c?

669

Is exit(status) truly equivalent to returning the same status from main?

687

What is sizeof array in c?

687

What are the basic data types associated with c?

941

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

710

pierrot's divisor program using c or c++ code

1856

What is the difference between the expression “++a” and “a++”?

739

diff between exptected result and requirement?

1702

Explain what is #line used for?

711

Write program to remove duplicate in an array?

694

number of times a digit is present in a number

1648

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