Which of the following can be possible output of the following lines of code? #include #include int main() { int a, pid; a = 20; pid = fork(); if (pid == 0) { printf("Parent\t %d\n", a); } else { printf("Child\t %d\n", a); a = 15; printf("Child\t %d\n", a); } return 0; }

(B) Child 20\ Child 15\ Parent 20

(C) Parent 20\ Child 20\ Child 15

(A) Child 20\ Child 15\ Parent 15

(D) Parent 15\ Child 20\ Child 15

Operating Systems · Quiz 1 · 7 Jul 2024 · May 2024 term

Question 19: Which of the following can be possible output of the fol…

Question 19

+4 marksOne or more correct options

Which of the following can be possible output of the following lines of code?

1#include <stdio.h>
2#include <stdlib.h>
3
4int main() {
5    int a, pid;
6    a = 20;
7    pid = fork();
8    if (pid == 0) {
9        printf("Parent\t %d\n", a);
10    } else {
11        printf("Child\t %d\n", a);
12        a = 15;
13        printf("Child\t %d\n", a);
14    }
15    return 0;
16}

Select all that apply.

A
Child 20
Child 15
Parent 15
B
Child 20
Child 15
Parent 20
C
Parent 20
Child 20
Child 15
D
Parent 15
Child 20
Child 15

Show answer

Correct answers

B
Child 20
Child 15
Parent 20
C
Parent 20
Child 20
Child 15

See the whole paper Take it as a mock test

Question 19 of 19 in the IIT Madras BS Operating Systems (Operating Systems) Quiz 1 paper sat on 7 Jul 2024, in the May 2024 term (IIT M IMPROVEMENT AN EXAM QIM4 7 July 2024). It carries 4 marks.

Question 19: Which of the following can be possible output of the fol…

Question 19

More questions from this paper