Multiple choice How many child processes are created if two fork () system calls are called? 4 3 5 2 1 Reveal answer Fill a bubble to check yourself B Correct answer Explanation No of child process are (2^n -1), here n is equal to no. of fork () system calls. So, 2^2 - 1 = 4 - 1 = 3 After a new process is created both child and parent processes will execute instruction following fork () system call.