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Directions (Q96–100): Consider the following disk queue with requests for I/O to blocks on cylinders:
45, 81, 185, 33, 175, 99, 150, 77
(Consider that the head starts from location 58.)

What shall be the 2nd request processed by the SCAN (Left) disk scheduling technique for the given request queue?

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Correct answer: C. 33

Explanation

SCAN moving left from 58 serves 45 first and then 33, so the 2nd request is 33.

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