Which of the following can be possible output of the following lines of code? #include #include int main() { int a, pid; a = 30; pid = fork(); if(pid == 0) { printf("Parent\t %d\n", a); } else { printf("Child\t %d\n", a); a = 25; printf("Child\t %d\n", a); } return 0; } Figure 2:

(A) Child 30\ Child 25\ Parent 30

(C) Parent 30\ Child 30\ Child 25

(B) Child 30\ Child 25\ Parent 25

(D) Parent 25\ Child 30\ Child 25

Operating Systems · Quiz 1 · 25 Feb 2024 · January 2024 term

Question 18: Which of the following can be possible output of the fol…

Question 18

+3 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>
3int main() {
4    int a, pid;
5    a = 30;
6    pid = fork();
7    if(pid == 0)
8    {
9        printf("Parent\t %d\n", a);
10    }
11    else {
12        printf("Child\t %d\n", a);
13        a = 25;
14        printf("Child\t %d\n", a);
15    }
16    return 0;
17}

Figure 2:

Select all that apply.

A
Child 30
Child 25
Parent 30
B
Child 30
Child 25
Parent 25
C
Parent 30
Child 30
Child 25
D
Parent 25
Child 30
Child 25

Show answer

Correct answers

A
Child 30
Child 25
Parent 30
C
Parent 30
Child 30
Child 25

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Question 18 of 22 in the IIT Madras BS Operating Systems (Operating Systems) Quiz 1 paper sat on 25 Feb 2024, in the January 2024 term (IIT M DEGREE AN2 EXAM QDB2 25 Feb 2024). It carries 3 marks.

Question 18: Which of the following can be possible output of the fol…

Question 18

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