The disk scheduling algorithm that implements two sub-queues in a measure to avoid the problem of "arm stickiness" is the __________ .
A) C-SCAN policy
B) FSCAN policy
C) DMA
D) N-step-SCAN policy

Question

Quizplus · Accepted Answer

FSCAN policy uses two sub-queues to manage disk scheduling, which helps in avoiding arm stickiness by alternating between the queues, thus preventing the disk arm from getting stuck servicing a single active queue.

The Disk Scheduling Algorithm That Implements Two Sub-Queues in a Measure