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()?

1 852

What are static functions?

1 743

How to avoid buffer overflow?

1 732

What are function pointers? Provide an example.

1 778

Explain command-line arguments in C.

1 760

What are static variables, and where are they stored?

2 928

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

2 878

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

2 943

How does the C program handle segmentation faults?

2 1290

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

2 1070

Explain the concept of "dangling pointers" in C.

2 1243

How do you prevent buffer overflows in C?

2 1081

What is the restrict keyword in C?

2 920

Explain the difference between struct and union.

2 920

What is the purpose of #pragma directives in C?

2 975

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Un-Answered Questions { C }

How is = symbol different from == symbol in c programming?

1049

What is a 'null pointer assignment' error?

1218

Explain what are run-time errors?

1093

In C, What is the #line used for?

2214

Which are low level languages?

1098

void main(int n) { if(n==0) return; main(--n); printf("%d ",n); getch(); } how it work and what will be its output...............it any one know ans plz reply

2793

How important is structure in life?

1089

How do I convert a string to all upper or lower case?

1122

What is difference between %d and %i in c?

1241

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

1091

Can the size of an array be declared at runtime?

1088

Tell us two differences between new () and malloc ()?

1196

What is wild pointer in c?

1076

What is wrong in this statement? scanf(“%d”,whatnumber);

1245

Program will then find the largest of three numbers using nested if-else statements. User is prompted to enter three numbers. Program will find the largest number and display it on the screen. All three numbers entered by the user are also displayed. If user enters 21, 33, and 5, the output should be as follows: You entered: 21, 33 and 5. The largest number is 33.

1694

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