Maurice Tutor

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    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Computer Science Posted 28 Aug 2017 My Price 4.00

number of head movements

Suppose the read/write head is at track 97, moving toward track 199 (the highest numbered track on the disk) and the disk request queue contains read/write requests for sectors on tracks 84, 155, 103, 96, and 1978, respectively.
a. What is the total number of head movements needed to satisfy the requests in the queue using the FCFS optimization strategy?
b. What is the total number of head movements needed to satisfy the requests in the queue using the Scan optimization strategy?
c. What is the total number of head movements needed to satisfy the requests in the queue using the Look optimization strategy?

Answers

Maurice Tutor
(5)
Status NEW Posted 28 Aug 2017 02:08 PM My Price 4.00

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