C Programming Language

Pointer in C Language

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Test your understanding of pointers in C programming with these multiple choice questions. Learn about the different operations and applications of pointers in C and become a proficient C programmer. Take the quiz now!

In this section you will learn MCQ question and answers of Pointer in C Language.

➲ Pointer in C Language - Quiz

Q 1: What is the output of this program? 

#include<stdio.h>
int main(){
    const int *p;
    int a=10;
    p=&a;
    printf("%d",*p);
    return 0;
}

  • A 0
  • B Compiler Error
  • C 10
  • D Garbage value

Q 2: What is the output of this C code? 
    void main()
    {
        int x = 4;
        int *p = &x;
        int *k = p++;
        int r = p - k;
        printf("%d", r);
    }

  • A 4
  • B 8
  • C 1
  • D Run time error

Q 3: What is the output of this C code? 
    int main()
    {
        int i = 10;
        int *p = &i;
        printf("%d\n", *p++);
    }

  • A Garbage value
  • B 10
  • C 11
  • D Address of i

Q 4: What will be the output of the following program? 
void main()
{
int const *p = 5;
Printf("%d", ++(*p));
}

  • A 5
  • B 6
  • C Compiler error
  • D Unexpected results

Q 5: What will be the output of the following program? 
main()
{
char p[] = "me";
int i;
for(i=0; p[i]; i++)
printf("\t%c%c%c%c",p[i],*(p+i), *(i+p), i[p]);
}

  • A mmmmeeee
  • B mmmm
  • C Unexpected results
  • D Compiler error

Q 6: What will be the output of the following program? 
#include"stdio.h"
main()
{
 int a[] = {2, 9, 3.6, 8, 9.7, 5.8};
 int j, *q = a;
 for(j=0; j<5; j++)
 {
 printf("\t%d", *q) ;
 q++;
 }
 
}

  • A 2 2 2 2 2
  • B 2 3 8 9 5
  • C Compile time error
  • D Unexpected results

Q 7: What will be the output of the following program? 
#include"stdio.h" 
char *fun(){
  char *temp = "atnyla";
  return temp; 
}
void main()
{
puts(fun());
}

  • A atnyla
  • B Null Pointer Exception
  • C Compiler error
  • D Unexpected results due to dangling pointers

Q 8: Can we have a pointer to a function?

  • A Not possible
  • B Possible
  • C Depends on the return value
  • D Depends on the # of arguments

Q 9: What is a pointer in C?

  • A A data type
  • B A memory address
  • C A keyword
  • D A function

Q 10: What is the difference between a pointer and a regular variable in C?

  • A A pointer can be dereferenced to access its value
  • B A regular variable cannot be passed to a function
  • C A pointer can only store integer values
  • D A regular variable does not require initialization

Q 11: Which of the following is the correct way to declare a pointer to an integer variable in C? int *x = &y;

  • A int x = &y;
  • B int *x = y;
  • C int &x = y;
  • D int *x = &y;

Q 12: What is a NULL pointer in C?

  • A A pointer that points to a non-existent memory location
  • B A pointer that has not been initialized
  • C A pointer that points to the first memory location in the system
  • D A pointer that points to the end of the system memory

Q 13: What is a pointer arithmetic in C?

  • A Performing arithmetic operations on the values of pointers
  • B Performing arithmetic operations on the memory addresses stored in pointers
  • C Converting pointers to integers and performing arithmetic operations on them
  • D Converting integers to pointers and performing arithmetic operations on them

Q 14: What is a double pointer in C?

  • A A pointer that can point to two different memory locations
  • B A pointer that stores a floating-point value
  • C A pointer that points to another pointer
  • D A pointer that can store two integer values

Q 15: What is a pointer to a function in C?

  • A A pointer that points to a specific memory location in a program
  • B A pointer that stores the address of a function in memory
  • C A pointer that can be used to access the arguments of a function
  • D A pointer that can only be used to call functions that return void

Q 16: What is the difference between a pointer and a reference in C++?

  • A A reference is a type of pointer
  • B A pointer can be reassigned to point to a different memory location, while a reference cannot
  • C A reference must be initialized when it is declared, while a pointer does not have to be
  • D A pointer is a copy of the value it points to, while a reference is an alias for the value it refers to

Q 17: What is the difference between a const pointer and a pointer to a const in C?

  • A A const pointer cannot be dereferenced, while a pointer to a const can
  • B A const pointer cannot be reassigned to point to a different memory location, while a pointer to a const can
  • C A const pointer points to a const object, while a pointer to a const can point to a non-const object
  • D A const pointer and a pointer to a const are equivalent in C