C Interview Questions
Questions Answers Views Company eMail

a.One Cannot Take the address of a Bit Field b.bit fields cannot be arrayed c.Bit-Fields are machine Dependant d.Bit-fields cannot be declared as static Which of the Following Statements are true w.r.t Bit-Fields A)a,b&c B)Only a & b C)Only c D)All

Accenture, Digg.com,

3 9298

What is the function of ceil(X) defined in math.h do? A)It returns the value rounded down to the next lower integer B)it returns the value rounded up to the next higher integer C)the Next Higher Value D)the next lower value

Accenture, Wipro,

3 9198

When do you say that a digraph is acyclic A)if and only if its first search does not have back arcs B)a digraph is acyclic if and only if its first search does not have back vertices C)if and only if its first search does not have same dfnumber D)None of these

Accenture, IBM,

1 4985

A function 'q' that accepts a pointer to a character as argument and returns a pointer to an array of integer can be declared as: A)int (*q(char*)) [] B)int *q(char*) [] C)int(*q)(char*) [] D)None of the Above

Accenture,

2 6322

What kind of sorting is this? SORT (k,n) 1.[Loop on I Index] repeat thru step2 for i=1,2,........n-1 2.[For each pass,get small value] min=i; repeat for j=i+1 to N do { if K[j]

Accenture,

3 7550

Which of the Following is not defined in string.h? A)strspn() B)strerror() C)memchr() D)strod()

Accenture, TCS,

2 8685

Identify the correct argument for the function call fflush () in ANSI C: A)stdout B)stdin C)stderr D)All the above

Accenture, TCS,

5 22810

Which of the Following will define a type NODE that is a node in a Linked list? A)struct node {NODE*next;int x;};type def struct node NODE; B)typedef struct NODE {struct NODE *next;int x;}; C)typedef struct NODE {NODE *next;int x;}; D)typedef struct {NODE *next;int x;}NODE;

Accenture, TCS,

5 10380

Which of these statements are false w.r.t File Functions? i)fputs() ii)fdopen() iii)fgetpos() iv)ferror() A)ii B)i,ii C)iii D)iv

Accenture,

6 10231

Study the code: void show() main() { show(); } void show (char *s) { printf("%sn",s); } What will happen if it is compiled & run on an ANSI C Compiler? A)It will compile & nothing will be printed when it is executed B)it will compile but not link C)the compiler will generate an error D)the compiler will generate a warning

Accenture,

4 6379

Look at the Code: #include void main() { char s1[]="abcd"; char s2[10]; char s3[]="efgh"; int i; clrscr(); i=strcmp(strcat(s3,ctrcpy(s2,s1))strcat(s3,"abcd")); printf("%d",i); } What will be the output? A)No output B) A Non Integer C)0 D) Garbage

Accenture,

7 11315

Look at the Code: main() { int a[]={1,2,3},i; for(i=0;i<3;i++) { printf("%d",*a); a++; } } Which Statement is/are True w.r.t the above code? I.Executes Successfully & Prints the contents of the array II.Gives the Error:Lvalue Required III.The address of the array should not be changed IV.None of the Above. A)Only I B)Only II C)II & III D)IV

Accenture,

5 6788

what is the output? #define fun(a,b,t) (g ##t=(a),(a)=(b),(b)=g##t) float gfloat; main() { float a=1.12,b=3.14; fun (a,b,float); printf("na=%4.2f,b=%4.2f",a,b); } A)Error in Defining Macro B)a=1.12,b=3.14 C)a=3.14,b=1.12 D)None of the Above

Accenture, Infosys, Wipro,

3 10414

study the code: #include void main() { const int a=100; int *p; p=&a; (*p)++; printf("a=%dn(*p)=%dn",a,*p); } What is printed? A)100,101 B)100,100 C)101,101 D)None of the above

Accenture, TCS,

15 17685

Which of the following are valid "include" formats? A)#include and #include[file.h] B)#include (file.h) and #include C)#include [file.h] and #include "file.h" D)#include and #include "file.h"

Accenture,

15 17900


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Un-Answered Questions { C }

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

643


What is difference between scanf and gets?

707


Define and explain about ! Operator?

696


What are the Advantages of using macro

768


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

723






what are the program that using a two dimensional array that list the odd numbers and even numbers separately in a given 10 inputs values

1351


What is the difference between a string and an array?

796


Explain b+ tree?

729


Explain enumerated types in c language?

686


the 'sizeof' operator reported a larger size than the calculated size for a structure type. What could be the reason?

656


What is formal argument?

752


Who is the main contributor in designing the c language after dennis ritchie?

648


What is the difference between fread and fwrite function?

718


Write a program to display all the prime nos from 1 to 1000000, your code should not take time more than a minute to display all the nos.

1683


What is malloc calloc and realloc in c?

790