Question

What is a long-term scheduler?

(a) It selects processes which have to be brought into the ready queue

(b) It selects processes which have to be executed next and allocates CPU

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

(d) None of the mentioned

I got this question in an online interview.

This interesting question is from Process Scheduling Queues topic in portion Processes of Operating System

Answer 1

Right option is (a) It selects processes which have to be brought into the ready queue

For explanation: A long-term scheduler selects processes which have to be brought into the ready queue. When processes enter the system, they are put in the job queue. Long-term scheduler selects processes from the job queue and puts them in the ready queue. It is also known as Job Scheduler.