Home » C » Interview Questions on Pointers in C

Interview Questions on Pointers in C : (6)

Question: 1

int main()
{
    int a = 320;
    char *ptr;
    ptr =( char *)&a;
    printf("%d",*ptr);
    return 0;
}

(A) 320
(B) 60
(C) 160
(D) 64

Compiler
Level: Practitioner Category: pointers
[Posted by: Admin | Chicago, USA]

Question: 2

//This program is compiled on 32 bit DEV-C++ 
int main()
{

char *ptr1, *ptr2;
printf("%d %d", sizeof(ptr1), sizeof(ptr2));

return 0;
}

(A) 1 1
(B) 2 2
(C) 4 4
(D) Undefined

Compiler
Level: Beginner Category: pointers
[Posted by: Admin | Chicago, USA]

Question: 3

Pointers can be created of following data types?

(A) character
(B) integer
(C) Unsigned character
(D) All of these

Compiler
Level: Beginner Category: pointers
[Posted by: Admin | Chicago, USA]

Question: 4

int **ptr;

(A) ptr is not a pointer
(B) ptr is a pointer to pointer
(C) Such statement no allowed in C
(D) None of these

Compiler
Level: Beginner Category: pointers
[Posted by: Admin | Chicago, USA]

Question: 5

//If system architecture is 64 bits
#include "stdio.h"

int main(){

int *ptr = NULL;

printf("%d",sizeof(ptr));

return 0;
}

(A) 2
(B) 4
(C) 8
(D) 0

Compiler
Level: Beginner Category: pointers
[Posted by: Admin | Chicago, USA]

Question: 6

Which of the following are valid statements regarding the ANSI C pointer ptr below?

struct descriptor desc;
struct descriptor const *ptr = &desc;

(A) ptr must refer to desc
(B) ptr may point to any descriptor elsewhere in memory
(C) Incrementing ptr will cause misalignment between ptr and desc
(D) desc may be modified through ptr

Compiler
Level: Practitioner Category: pointers
[Posted by: Admin | Chicago | USA]

Home » C » Interview Questions on Pointers in C

Interview Questions on Pointers in C : (6)

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