There are 200 tracks on a disc platter and the pending requests have come in the order – 36, 69, 167, 76, 42, 51, 126, 12 and 199.
Assume the arm is located at the 100 track and moving towards track 199. If sequence of disc access is 126, 167, 199, 12, 36, 42, 51, 69 and 76 then which disc access scheduling policy is used?
(A) Elevator
(B) Shortest seek-time first
(C) C-SCAN
(D) First Come First Served
Answer: (C)
Explanation: The algorithm looks similar to C- Scan.
Option (C) is correct.
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