Question

A process executes the code fork(); fork(); fork(); The total number of child processes created is 

(A) 3 

(B) 4 

(C) 7  

(D) 8

Answer 1

(C) 7

If fork is called n times, there will be total 2ⁿ running processes including the parent process. So, there will be 2ⁿ-1 child processes.