WhichofthefollowingstatementsareFALSEconcerningthedefragfscommand?()

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A.Thedefragfscommandshouldnotberunagainstfilesystemsandlogicalvolumesthatcontainmostlytransitoryinformation，suchas/tmp.

B.ThedefragfscommandshouldnotberunonalargeJFS2filesystemwhenrunningona32-bitkernel.

C.Thedefragfscommandcanimprovefilesystemperformancebyincreasingthefilesystem’scontiguousfreespace.

D.Thedefragfscommandcanonlyberunagainstfilesystemsthataremountedwithread-writepermissions.

参考答案:

参考B