OS conceptual problem

Question

In a system, there are 2 process and Round robin policy is employed. After some time one process gets completed, but another process is remaining with 6 unit burst time.Time Quantam is 2 unit. So, how many context switch occurs to complete this remaining process?(Ignore previous and last context switch.)

A. 0

B. 2

C. 3

D. 4

Answer 1

If there's only one process is in the ready queue, context switch will not occur. refer this link below So answer should be 0. http://stackoverflow.com/questions/8997616/does-a-context-switch-occur-in-a-system-whose-ready-queue-has-only-one-process-a. It makes no sense to save and reload PCB state values when the same process is to be executed again.

Comments

okay..thank you very much for clearing the misconception. :)