ISRO CSE 2023 | Question: 54

Question

	Process Scheduler Type		Activity
(i)	Long Term Scheduler	(P)	executes much faster to reduce wastage of CPU time
(ii)	Medium term scheduler	(Q)	controls degree of multi programming
(iii)	Short Term scheduler	(R)	is associated with swapping

with respect to Process Schedulers of an operating system mentioned above in the table, which of the following statements is correct?

1. (i) – (R), (ii) – (P), (iii) – (Q)
2. (i) – (Q), (ii) – (R), (iii) – (P)
3. (i) – (P), (ii) – (R), (iii) – (Q)
4. (i) – (R), (ii) – (Q), (iii) – (P)

Answer 1

Option b) is correct because  the multi-programming degree is mostly controlled by the Long-Term Scheduler. Medium-term scheduler type of the process-swapping scheduler. The medium-term scheduler is the fastest among the other two.

Comments

Short Term scheduler would be fastest. Medium term scheduler requires memory access which makes it slower than short term.

Answer 2

b is correct