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

C Interview Questions

Questions Answers Views Company eMail

how to swap two integers 1 and 32767 without using third variable

Microsoft, TCS,

11 16617

difference between ordinary variable and pointer in C?

2 10214

application attempts to perform an operation?

1978

how logic is used

1973

Write a C/C++ program that connects to a MySQL server and displays the global TIMEZONE.

2640

what is use of malloc and calloc?

1906

why programming language C is still used in operating system's kernel??

Wipro,

1 4069

c program to arrange digits in a no in ascending and descending order

1 20022

1.)how to find d most repeated word in a string? string ="how do you do"?? output should be do

AAS, Nagarro, Vuram,

1 20923

what value is returned to operating system after program execution?

2124

what will be maximum number of comparisons when number of elements are given?

1909

What is the output of the program #include #include void main() {0 int i,j=20; clrscr(); for(i=1;i<3;i++) { printf("%d,",i); continue; printf("%d",j); break; } getch(); }

CTS, Oracle,

4 9532

what is the c.

IBM, TCS,

3 5748

int n=1; while(1) { switch(n) { case 1:printf("a"); n++; continue; case 2:printf("b"); n++; continue; default : printf("c"); break; } break; }

1 5352

main() { int i; printf("%d",i^i); }

1 3328

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Un-Answered Questions { C }

List the difference between a "copy constructor" and a "assignment operator"?

1019

Why do we use header files in c?

1079

What is difference between array and pointer in c?

1091

What is n in c?

1056

What are the 4 data types?

1023

How do you use a pointer to a function?

1088

What should malloc(0) do? Return a null pointer or a pointer to 0 bytes?

1080

Explain what is a static function?

1111

printf(), scanf() these are a) library functions b) userdefined functions c) system functions d) they are not functions

1160

How does sizeof know array size?

1125

In C language what is a 'dangling pointer'?

1162

What are identifiers c?

1091

What type is sizeof?

1039

What is c language & why it is used?

1116

any "C" function by default returns an a) int value b) float value c) char value d) a & b

1087

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