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Interview Questions on Pointers in C : (6)

Question: 1

#include<stdio.h>

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 of MCQ: pointers

Question: 2

//This program is compiled on 32 bit DEV-C++ 
#include<stdio.h>
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 of MCQ: pointers

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 of MCQ: pointers

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 of MCQ: pointers

Question: 5

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

int main(){

int *ptr = NULL;

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

return 0;
}

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

Compiler
Level: Beginner Category of MCQ: pointers

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

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Interview Questions on Pointers in C : (6)

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