Question

Consider the following statements and choose the correct one:
(A) Job schedulers select processes from the pool and load them into memory for execution.
(B) Short term scheduler selects among the processes that are ready to execute and allocates the CPU to one of them.
(C) Medium term scheduler increases the degree of multiprogramming.
Choose the correct answer from the options given below:

• A. Job schedulers select processes from the pool and load them into memory for execution.
• B. Short-term scheduler selects among the processes that are ready to execute and allocates the CPU to one of them.
• C. Medium-term scheduler increases the degree of multiprogramming.
• D. (A) only.

Hint:

Differentiate schedulers by their roles: Job (long-term), short-term, and medium-term manage processes at different execution stages.

Answer 1

The Correct Option is B

- (A): True. Job schedulers (long-term schedulers) manage the process pool by moving processes into memory for execution. - (B): True. Short-term schedulers manage ready-to-execute processes and allocate the CPU. - (C): False. Medium-term schedulers manage memory but do not directly increase the degree of multiprogramming. They suspend and resume processes to manage memory.