Question

What is a medium-term scheduler?

(a) It selects which process has to be brought into the ready queue

(b) It selects which process has to be executed next and allocates CPU

(c) It selects which process to remove from memory by swapping

(d) None of the mentioned

The question was posed to me during an interview.

Asked question is from Process Scheduling Queues topic in section Processes of Operating System

Answer 1

The correct option is (c) It selects which process to remove from memory by swapping

Easy explanation - A medium-term scheduler selects which process to remove from memory by swapping. The medium-term scheduler swapped out the process and later swapped in. Swapping helps to free up memory.