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

C Interview Questions

Questions Answers Views Company eMail

Write a program for finding factorial of a number.

Tech Mahindra,

1088

Program to find the sum of digits of a given number until the sum becomes a single digit. (e.g. 12345=>1+2+3+4+5=15=>1+5=6)

InterGraph,

1159

Difference between constant pointer and pointer to a constant.

Huawei,

1146

An application package has been provided to you without any documents for the following application. The application needs to be tested. How will you proceed?

Aspire, Infogain,

1235

Can include files be nested? How many levels deep can include files be nested?

Aspire, Infogain,

1170

What is the difference between a free-standing and a hosted environment?

Aspire,

1148

Write a code on reverse string and its complexity.

Expedia,

1036

What is a structure and why it is used?

Hexaware,

1227

Give differences between - new and malloc() , delete and free() ?

Genpact,

1100

Can a function argument have default value?

Genpact,

1152

Write a code to determine the total number of stops an elevator would take to serve N number of people.

Expedia,

1259

In a byte, what is the maximum decimal number that you can accommodate?

1140

Write a program to know whether the input number is an armstrong number.

Wipro,

1123

Can an array be an Ivalue?

EXL,

1094

State two uses of pointers in C?

Aspire, Infogain,

1063

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Un-Answered Questions { C }

What is the acronym for ansi?

1051

What is assignment operator?

1059

hi to every one .. how to view table pool after creating the pooled table? plz help me.. if any knows abt this ..

1918

Do array subscripts always start with zero?

1301

Badboy is defined who has ALL the following properties: Does not have a girlfriend and is not married. He is not more than 23 years old. The middle name should be "Singh" The last name should have more than 4 characters. The character 'a' should appear in the last name at least two times. The name of one of his brothers should be "Ram" Write a method: boolean isBadBoy(boolean hasGirlFriend , boolean isMarried, int age , String middleName , String lastName , String[] brotherName); isHaveGirlFriend is true if the person has a girlfriend isMarried is true if the person is married age is the age of the person middleName is the middle name of the person lastName is the last name of the person brotherName is the array of the names of his brothers

1887

What does #pragma once mean?

1166

What is ctrl c called?

1050

What is the difference between void main and main in c?

1156

What are the advantages and disadvantages of pointers?

1072

Does c have class?

1121

What would be an example of a structure analogous to structure c?

999

What is difference between array and structure in c?

1192

What is the use of gets and puts?

1032

How would you use the functions fseek(), freed(), fwrite() and ftell()?

1166

Explain the use of 'auto' keyword

1125

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