1 What is the output of the following program?

#include <stdio.h>

void foo(int a[])

{

a[0]=10;

printf("%d",a[0]);

return ;

}

int main()

{

int a[]={1,2,3};

foo(a);

printf("%d",a[0]);

return 0;
}
 11

 101

 1010

 110

ans 1010

2 What is the output of the following program?

#include<stdio.h>

int main()

{

    int size, i;

    size=5;

    int arr[size]={1,2,3,4,5};

    for(i=1; i<=size;i++)

    {

        printf("%d", arr[i]);

    }

    return 0;

}

 12345

 2345

 23456

 None of These

ans. none of these

3 In C, if you pass an array as an argument to a function, 
what actually gets passed?

 Value of elements in array

 First element of the array

 Base address of the array

 Address of the last element of array

ans . base address of array

4 What will be output if you will execute following c code?

#include<stdio.h>

void main(){

    char arr[16]="The African Queen";

    printf("%s",arr);

}

 The African Queen

 The African Quee

 he African Queen

 Error

ans. error

5 What is the valid statement that you can make about the 
output of the following code?

#include<stdio.h>

void fun(int * a)

{

      int ** x=&a;

      printf("%u\n",x);

      return ;

}

int main(){

    int a[5]={1,2,3,4,5};

    int * b = a;

    int ** y=&b;

    printf("%u\n",y);

    fun(b);

    return 0;  

}

 Both the printed values are necessarily the same

 Both the printed values are necessarily different

 Both the printed values may be same

 None of these

ans. both the printed values may be same

6 What will be output if you will execute following C code?

#include<stdio.h>

void main(){

    char arr[20]="MysticRiver";

    printf("%d",sizeof(arr));   

}

 11

 20

 44

 80

ans.20

7 What is the output of the following code?

#include<stdio.h>

int main()

{

    int a[5] = {5, 1, 15, 20, 25};

    int i, j, m;

    i = ++a[1];

    j = a[1]++;

    m = a[i++];

    printf("%d, %d, %d", i, j, m);

    return 0;

}

 2 2 15

 3 2 20

 3 1 20

 3 2 15

ans. 3 2 15

8 Which of the following are correct ways to initialize an array?
 (There may be multiple answers.)

 int num[]={1,2,3,4};

 int num{}={1,2,3,4};

 int num[4]={1,2,3,4};

 int num()={1,2,3,4};

ans. A&C

9 What will be the output of the following program?

#include<stdio.h>

int main(){

   int a = 330;

   char *p;

   p =( char *)&a;

   printf("%d ",*p);

   return 0;

}

 330

 74

 54

 331

ans 74