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

C Interview Questions

Questions Answers Views Company eMail

What are the advantages of using Unions?

IBS,

1070

How do you print an address?

TCS,

1215

In header files whether functions are declared or defined?

TCS,

1 1787

What are Macros? What are its advantages and disadvantages?

TCS,

1094

What are the differences between Structures and Arrays?

TCS,

1134

What is static identifier?

TCS,

1172

How can you determine the size of an allocated portion of memory?

Aspire, Infogain,

1241

Is it better to use malloc() or calloc()?

Aspire, Infogain,

1068

What is the difference between NULL and NUL?

Aspire, Infogain,

1247

What is the difference between a string copy (strcpy) and a memory copy (memcpy)? When should each be used?

Aspire, Infogain,

1054

What will the preprocessor do for a program?

Aspire, Infogain,

1022

When should a far pointer be used?

Aspire, Infogain,

1064

What do the functions atoi(), itoa() and gcvt() do?

Aspire, Infogain,

1140

What is a null pointer assignment error? What are bus errors, memory faults, and core dumps?

Aspire, Infogain,

1383

Which header file should you include if you are to develop a function which can accept variable number of arguments?

TCS, TISL,

1324

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Un-Answered Questions { C }

What does stand for?

1046

What is unary operator?

1054

What is #ifdef ? What is its application?

1057

There seem to be a few missing operators ..

1008

What is the difference between exit() and _exit() function in c?

1021

What is the use of volatile?

1047

Explain what are the advantages and disadvantages of a heap?

1037

What do you mean by keywords in c?

1086

What is meant by initialization and how we initialize a variable?

1006

What are the features of the c language?

1038

Wt are the Buses in C Language

3154

Where static variables are stored in c?

1045

Can include files be nested?

1063

Do you know what are the properties of union in c?

1003

What is nested structure with example?

1017

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