单项选择题

YouareworkingontheAPPDBdatabaseasaDBA.ThedatabasehasadefaultFlashbackDataArchiveDFLA1createdonit.YouissuedthefollowingcommandtodroptheFlashbackArchiveFLA1:DROPFLASHBACKARCHIVEfla1,Whatistheeffectofthiscommand?（）
A.TheFlashbackArchiveFLA1isdroppedonlyifitisempty.
B.ThetablespacehavingFlashbackArchiveisdropped.
C.TheFlashbackArchiveFLA1isdroppedaftermovingtheexistingdatainittothedefaultFlashbackArchive.
D.TheFlashbackDataArchiveandhistoricaldataaredropped.

A.ThedatabasehasadefaultFlashbackDataArchiveDFLA1createdonit.YouissuedthefollowingcommandtodroptheFlashbackArchiveFLA1:DROPFLASHBACKARCHIVEfla1,Whatistheeffectofthiscommand?（）
A.TheFlashbackArchiveFLA1isdroppedonlyifitisempty.
B.ThetablespacehavingFlashbackArchiveisdropped.
C.TheFlashbackArchiveFLA1isdroppedaftermovingtheexistingdatainittothedefaultFlashbackArchive.
D.TheFlashbackDataArchiveandhistoricaldataaredropped.

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YouworkasasenioradministratoratABC.com.TheABC.comnetworkconsistsofasingledomainnamedABC.com.AllserversontheABC.comnetworkhaveWindowsServer2012R2installed.Youarerunningatrainingexerciseforjunioradministrators.YouarecurrentlydiscussingtheuseofNon-UniformMemoryArchitecture（NUMA）.WhichofthefollowingisTRUEwithregardstoNon-UniformMemoryArchitecture（NUMA）？（）A.Itisacomputerarchitectureusedinmultiprocessorsystems.B.Itisacomputerarchitectureusedinsingleprocessorsystems.C.Itallowsaprocessortoaccesslocalmemoryfasterthanitcanaccessremotememory.D.Itallowsaprocessortoaccessremotememoryfasterthanitcanaccesslocalmemory.

单项选择题

Whichnamingmethodusesthetnsnames.orafiletostoretheconnectdescriptorusedbytheclientwhileconnectingtothedatabaseinstancefromaremotemachine（）

A.hostnamingmethod
B.localnamingmethod
C.externalnamingmethod
D.directorynamingmethod