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 8974

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 8885

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 4766

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 6035

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 7233

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

Accenture, TCS,

2 8405

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 22230

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 9878

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 9738

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 6021

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 10610

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 6289

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 10061

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 16570

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 16915


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Un-Answered Questions { C }

What does a pointer variable always consist of?

653


What is the use of ?: Operator?

655


What are c preprocessors?

662


What is a stream in c programming?

578


The % symbol has a special use in a printf statement. How would you place this character as part of the output on the screen?

753






What is page thrashing?

643


What are preprocessor directives in c?

626


Given an array of 1s and 0s arrange the 1s together and 0s together in a single scan of the array. Optimize the boundary conditions?

972


What are the 4 types of unions?

598


Is array name a pointer?

593


which type of aspect you want from the student.

1693


Write a program on swapping (100, 50)

629


What is the difference between specifying a constant variable like with constant keyword and #define it? i.e what is the difference between CONSTANT FLOAT A=1.25 and #define A 1.25

1482


How does placing some code lines between the comment symbol help in debugging the code?

534


Can you write the function prototype, definition and mention the other requirements.

647