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 macros and inline functions?

Global Edge, L&T,

5 12795

what is the output of the code and how? main() { int *ptr,x; x=sizeof(ptr); printf("%d",x); }

1 3985

How to write in a function declaration and in function call in which the function has 'n' number of varible or arguments?

2 4658

What is Generic pointer? What is the purpose of Generic pointer? Where it is used?

3 6379

what is the answer for it main() { int i; clrscr(); printf("%d",&i)+1; scanf("%d",i)-1; }

3 5905

Write a C/C++ program that connects to a MySQL server and checks intrusion attempts every 5 minutes. If an intrusion attempt is detected beep the internal speaker to alert the administrator. A high number of aborted connects to MySQL at a point in time may be used as a basis of an intrusion.

Drona Solutions, Infosys, Vodafone, Webyog,

2 11460

write a programe to find the factorial of given number using recursion

3 7915

write a programme to enter some number and find which number is maximum and which number is minimum from enterd numbers.

3 5269

FIND THE OUTPUT IF THE INPUT IS 5 5.75 void main() { int i=1; float f=2.25; scanf("%d%f",&i,&f); printf("%d %f",,i,f); } ANSWER IS 5 AND 2.25 WHY?

Wipro,

4 7131

void main() { char c; while(c=getchar()!='\n') printf("%d",c); } o/p=11 why?

Wipro,

8 13406

if we take a number as a char then can we manipulate(add, subtract) on this number

2 4322

In which category does main function belong??

5 7199

4) Write a program that takes a 5 digit number and calculates 2 power that number and prints it.

5 8312

what is an inline fuction??

2 4590

find the value of y y = 1.5x+3 for x<=2 y = 2x+5 for x>2

TCS,

2054

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Un-Answered Questions { C }

What is 1f in c?

2731

What is mean by data types in c?

1076

Explain about the functions strcat() and strcmp()?

1100

What is the best way of making my program efficient?

1087

Explain what is wrong with this program statement?

1161

Why doesnt this code work?

1130

Can you subtract pointers from each other? Why would you?

1012

What is const volatile variable in c?

1105

What do you mean by scope of a variable in c?

1062

C program to find all possible outcomes of a dice?

2414

In C language what is a 'dangling pointer'?

1245

Explain main function in c?

1140

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

1241

code for replace tabs with equivalent number of blanks

2220

How can I get back to the interactive keyboard if stdin is redirected?

1243

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