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发布时间: 2010-09-17
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1.Q: Whatistheroleofmiddlewareinadistributedsystem?A: Toenhancethedistributiontransparencythatismissinginnetworkoperat-ingsystems.Inotherwords,middlewareaimsatimprovingthesingle-systemviewthatadistributedsystemshouldhave.2.Q: Explainwhatismeantby(distribution)transparency,andgiveexamplesofdifferenttypesoftransparency.A: Distributiontransparencyisthephenomenonbywhichdistributionaspectsinasystemarehiddenfromusersandapplications.Examplesincludeaccesstransparency,locationtransparency,migrationtransp


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