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

C Interview Questions

Questions Answers Views Company eMail

the operator for exponencation is a.** b.^ c.% d.not available

TCS,

5 9177

what is y value of the code if input x=10 y=5; if (x==10) else if(x==9) elae y=8; a.9 b.8 c.6 d.7

TCS,

4 12005

what does the following code do? fn(int n,int p,int r) { static int a=p; switch(n){ case 4:a+=a*r; case 3:a+=a*r; case 2:a+=a*r; case 1:a+=a*r; } } a.computes simple interest for one year b.computes amount on compound interest for 1 to 4 years c.computes simple interest for four year d.computes compound interst for 1 year

TCS,

7 13356

a=0; while(a<5) printf("%d\n",a++); how many times does the loop occurs? a.infinite b.5 c.4 d.6

TCS,

7 16849

how many times does the loop iterated ? for (i=0;i=10;i+=2) printf("Hi\n");

TCS,

9 20527

which of the following go out of the loopo if expn 2 becoming false a.while(expn 1){...if(expn 2)continue;} b.while(!expn 1){if(expn 2)continue;...} c.do{..if(expn 1)continue;..}while(expn 2); d.while(!expn 2){if(expn 1)continue;..}

TCS,

4 9126

pick out the odd one out of the following a.malloc() b.calloc() c.free() d.realloc()

TCS, ZenQ,

2 13036

# define prod(a,b)=a*b main() { int x=2; int y=3; printf("%d",prod(x+2,y-10)); } the output of the program is a.8 b.6 c.7 d.none

Microsoft, TCS,

7 21114

consider the following program sigment int n,sum=1; switch(n) { case 2:sum=sum+2; case 3:sum*=2; break; default:sum=0;} if n=2, what is the value of sum a.0 b.6 c.3 d.none

TCS,

7 15161

the format specified for hexa decimal is a.%d b.%o c.%x d.%u

TCS,

7 11922

find the output of the following program main() { int x=5, *p; p=&x; printf("%d",++*p); }

Amdocs, TCS,

10 27629

consider the following C code main() { int i=3,x; while(i>0) { x=func(i); i--; } int func(int n) { static sum=0; sum=sum+n; return(sum); } the final value of x is

TCS,

4 10611

int *a[5] refers to

TCS,

12 26594

which of the following statements is incorrect a.typedef struct new{ int n1; char n2; } DATA; b.typedef struct { int n3; char *n4; }ICE; c.typedef union { int n5; float n6; } UDT; d.#typedef union { int n7; float n8; } TUDAT;

Assurgent, TCS,

5 16276

main() { char *p1="Name"; char *p2; p2=(char *)malloc(20); while(*p2++=*p1++); printf("%s\n",p2); } what is the output?

AMCAT, HCL, Ramco, Zycus Infotech,

7 26863

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Un-Answered Questions { C }

What is operator precedence?

1204

What is a dynamic array in c?

1156

Why is c so important?

1060

How can I sort more data than will fit in memory?

1105

Explain how many levels deep can include files be nested?

1073

Write a program to reverse a string.

1074

What is sizeof int in c?

1054

Explain what is the difference between text files and binary files?

1154

Explain setjmp()?

1068

What is an example of structure?

1039

Where register variables are stored in c?

961

Can we compile a program without main() function?

1120

What is the use of typedef in c?

1030

How can I make sure that my program is the only one accessing a file?

1263

What is a null string in c?

1036

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