GATE CS 2019 Set 1 — Question 27
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Operating System → Processes & Threads → Process Creation (fork, exec)
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Question
The following C program is executed on a Unix/Linux system:The total number of child processes created is _______.
#include <unistd.h>
int main()
{
int i;
for (i=0; i<10; i++)
if (i%2 == 0) fork();
return 0;
}
Correct answer
31 to 31
Solution
The loop runs for to (10 iterations).
The condition
Here, .
Total child processes = .
The condition
if (i%2 == 0) is true for even values of : . This means fork() is called 5 times.The number of child processes created by fork() calls is .Here, .
Total child processes = .
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