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

C Interview Questions

Questions Answers Views Company eMail

Differentiate between calloc and malloc.

Wipro,

1273

Under what circumstances does a name clash occur?

InterGraph,

1204

Explain Function Pointer?

Wipro,

1178

What 'lex' does?

Tech Mahindra,

1184

What are the storage classes in C?

1160

Difference between linking and loading?

1113

What is the difference between Printf(..) and sprint(...) ?

InterGraph,

1543

Define C in your own Language.

Motorola,

1085

Differentiate between static and dynamic modeling.

Wipro,

1133

What is meant by realloc()?

1155

Difference between macros and inline functions? Can a function be forced as inline?

HAL, Honeywell, Zomato,

1276

What is modeling?

1055

Explain 'bit masking'?

EXL,

1089

What is ponter?

TCS,

1269

What is the use of pointers in C?

Impetus, Motorola, Tavant Technologies, Virtusa,

1084

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Un-Answered Questions { C }

Write a program of prime number using recursion.

1093

What are the rules for the identifier?

1169

#include int main(){ int i=10; int *ptr=&i; *ptr=(int *)20; printf("%d",i); return 0; } Output: 20 can anyone explain how came the output is 20

1724

Why we use break in c?

1014

Find duplicates in a file containing 6 digit number (like uid) in O (n) time.

3250

What are the types of macro formats?

1125

Is a pointer a kind of array?

1187

How do you define a function?

1030

Is fortran still used today?

1096

Differentiate call by value and call by reference?

973

What oops means?

1001

What is the use of static variable in c?

1091

program to find out date after adding 31 days to a date in the month of febraury also consider the leap year

3095

What is the difference between text and binary i/o?

1056

what is the basis for selection of arrays or pointers as data structure in a program

4309

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