单项选择题

Howcanvirtualprocessorsbedifferentiatedfromdedicatedprocessorsfromaphysicalprocessorviewpoint?（）

A.Dedicatedprocessorsarefractionsofwholeprocessorsthatarededicatedtoasinglepartition.
B.Virtualprocessorsarethewholenumberofconcurrentoperationsthattheoperatingsystemcanuse.
C.VirtualprocessorsandnotdedicatedprocessorsareprocessorsusedinVirtualIOServerpartitions.
D.Virtualprocessorsanddedicatedprocessorsareinterchangeableconcepts,botharewholephysicalprocessorsusedinvirtualanddedicatedLPARs.

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Whichofthefollowingcommandsshouldbeusedtomonitorthenumberofbytesreadonanygivendisk？（）

A.tprof
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WhichofthefollowingproceduresbestexplainshowtoenabletheNISnameresolutiontotakeprecedenceoverDNSonasystem－widebasis?（）

A.Addthefollowinglineto/etc/netsvc.conf:hosts=nis,bind,local
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