C Programming Quiz

1. What will be the output of the program if the array begins at 1000 and each integer occupies 2 bytes?

void main()
{
    int arr[2][2] = { 1, 2, 3, 4 };
    printf("%u, %u", arr+1, &arr+1);
}

1004 1008
1002 1008
1002 1002
1008 1002

2. What is the output of this program?

void main()
  {
  struct bitfields {
  int bits_1: 2;
  int bits_2: 9;
  int bits_3: 6;
  int bits_4: 1;
  }bit;
  printf("%d", sizeof(bit));
}

2
3
4
0

3. What is the output of this program?

#include <stdio.h>
int main(){
    printf("%d	",sizeof(2.5));
	printf("%d	",sizeof(2));
	printf("%d",sizeof('A'));
	return 0;
}

8 4 2
4 4 1
8 4 1
4 4 2

4. What will be the output of the program ?

#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;
}

3,2,15
2,3,20
2,1,15
1.2.5

5. How many times the loop will execute ?

for(int i = 0 ; i < 10 ; i++)
{
    i  =  i*2;
    i--;
}

10
5
0
Infinite

6. In expression i = g() + f(), first function called depends on __________

Compiler
Associativiy of () operator
Precedence of () and + operator
Left to write of the expression

7. What is the output of this program?

int main()
{
char ch;
ch = 128;
printf("%d", ch);
return 0;
}

128
-128
Depends on compiler
None of the above

8. The EOF character can be included in a file as part of its data

TRUE
May Be
FALSE
Can't Say

9. What will be output for the following code?

#include <stdio.h>
#define TRUE  1
 
int main( ) {
   printf( ""Value of TRUE : %d
"", TRUE);
   return 0;
}

0
1
null
garbage

10. Choose the best one - prior to using a pointer variable

It should be declared.
It should be initialized
It should be both declared and initialized.
None of the above.