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Aconsultanthasbeenaskedtodoaperformanceanalysisonadatabaseserver.Whichsubsystemshouldtheconsultantfirstanalyzeandwhy?()
A.CPU,becausethedatabasereplicationprocessrequiresaconsiderableamountofCPUtime
B.Memory,becausethebuffercacherequiresalargeamountofmemorytomaintainthedatainsystemmemory
C.Disk,becauseitisimportanttoconfigureasufficientnumberofdiskstomatchtheCPUprocessingpower
D.Network,becausethedatareturnedtotheclientfromtheservercanbealargesubsetofthetotaldatabase
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