C Objective Tricky Questions for Interview Preparations

These C objective questions test your basic understanding of C language and it’s concept. The questions i included is a short piece of c code, every question has four options, you have to choose the correct answer.

Interview Objective Question

Objective Questions on Recursion

#include <stdio.h>
int main()

{
  int a=20;
  int b;
  b = a;
  b=25;

  printf("%d",b);

  return 0;
}

int main(){
        char c='A';
        printf("%d",c);
}

int main()
{
    int a[3]={11,5};
    printf("%d,%d",a[1],a[2]);
    return 0;
}

int main()
{
    int a=0;
    printf("%d,%d",a++,++a);
    return 0;
}

int main()
{
    int a=5,b=6;
    a = a++;
    b = ++b;
    
    printf("%d,%d",a,b);
    return 0;
}

Explanation

Question 2

Every character has some ASCII value.

printf(“%d”,c);

Here we use %d, so it will print the ASCII value of character.

For reference check the code

Question 3

int a[3]={11,5};

So a[0] = 11 , a[1]=5

No value is for a[2] so 0 is assigned.

Question 5

Initially we assign a = 5 and b=6

a = a++;

In post increment,first value is assigned and then it will be incremented so 5 is assigned

b = ++b;

In pre increment, firs value is incremented and then assigned. So 7 is assigned.