A disk scheduling mechanism in an operatingsystem causes the disk arm to sweepback and for

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A disk scheduling mechanism in an operatingsystem causes the disk arm to sweepback and forth across the disk surface servicing all requests in its path. This is a

A.First Come First Serve

B.Shortest Seek Time First

C.Scan

D.None of the above

参考答案:

C

计算机四级