GATE | GATE CS 2019 | Question 26
The following C program is executed on a Unix / Linux system:
#include <unistd.h>
int main() {
int i;
for (i = 0; i < 10; i++)
if (i % 2 == 0) fork();
return 0;
}
|
The total number of child process created is __________ .
Note – This was Numerical Type question.
(A) 31
(B) 63
(C) 5
(D) 6
Answer: (A)
Explanation: Condition “if” will be satisfy for i = 0, 2, 4, 6, 8 only. So, “fork()” will call for 5 times.
Total number of processes created is,
= 2number of fork()
There is always only one parent process of these processes and remaining will be child processes.
Hence number of child process created is,
= 2number of fork() - 1
= 25 - 1
= 32 - 1
= 31
So, option (A) is correct.
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Last Updated :
15 Feb, 2019
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