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 12568

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

1 3935

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

2 4571

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

3 6252

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

3 5763

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 11357

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

3 7802

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

3 5138

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 6983

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

Wipro,

8 13184

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

2 4236

In which category does main function belong??

5 7043

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

5 8189

what is an inline fuction??

2 4502

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

TCS,

1996

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Un-Answered Questions { C }

What is class and object in c?

1130

What is indirection?

1108

Should I learn data structures in c or python?

1032

Write a program to swap two numbers without using third variable in c?

1142

What the different types of arrays in c?

1074

What does != Mean in c?

1061

Explain the ternary tree?

1036

how to solve "unable to open stdio.h and conio.h header files in windows 7 by using Dos-box software

3331

What is the explanation for the dangling pointer in c?

1124

What is #include conio h?

1013

Explain how can I remove the trailing spaces from a string?

1058

What is zero based addressing?

1184

Write a program to print “hello world” without using semicolon?

1128

Is c dynamically typed?

1170

What is the use of sizeof?

1023

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