Programming Fork()

Question

A process executes the following segments of code :  for (i = 1; i ≤ 4; i++)  fork ( );  The number of new processes created is __________.

Your Answer:

8

Correct Answer: 15    Status: incorrect

Answer 1

Total child process is given as under:

2^n-1(Parent)

2^4-1=15

Answer is 15. 

In general,

total Child Processes = 2ⁿ-1(Parent) = 2ⁿ - 1.

For more information refer the link below:

https://gateoverflow.in/3707/gate2004-it-64

I hope the explanation helps you. :)