The following C program main() { fork() ; fork() ; printf ("yes"); } If we…
2018
The following C program
main()
{
fork() ; fork() ; printf ("yes");
}
If we execute this core segment, how many times the string yes will be printed ?
- A.
Only once
- B.
2 times
- C.
4 times
- D.
8 times
Attempted by 181 students.
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Correct answer: C
The C program uses the fork() system call twice sequentially. The first fork creates one child process, resulting in two active processes (parent and child). The second fork is executed by both existing processes, doubling the count to four total processes. Since all four processes reach and execute the printf statement, the string is printed exactly 4 times.
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