Question

including the initial parent process, how many processes are created by the following programs.
#include<stdio.h>
#include<unistd.h>
Main()
{
Int pid1,pid2;
Pid1=fork();
Pid2=fork();
}

Answer 1

1
the lines with fork() have undeclared variable Pid1, Pid2

Answer 2

Each process that executes a fork() divides into two processes. The initial process is the only one to encounter the first fork(). Each of the twoprocesses leaving the first fork() will divide again at the second fork(), making 4 total processes to reach "return 0'".

Answer 3

1, because the lines containing fork() have an undeclared variable (Pid1, Pid2) because of capitalization. Otherwise, 3 (1 parent, 2 children).