单项选择题
A.compress the incoming data stream as it is received
B.store the alreadydeduplicated data stream unprocessed
C.compare the incoming data to previously replicated data and store only the byte-level changes
D.compare the incoming data to previously replicated data and store only the block-level changes
单项选择题 AcustomerhastwoseparatestorageislandsandisplanningtoimplementanSVCtoprovideforFlashCopybetweenthetwoislands.Whatistheminimumnumberofinter-switchlinks（ISLs）thatarerequired？（）
单项选择题 AcustomerhaspurchasedanewIBMStorwizeV7000storagearrayandisconsideringanIPbasedDRreplicationsolutionthatiscost-optimizedandprovidesanearinstantrecoveryoptionfortheirMicrosoftExchangeapplicationandserver.Thebackupsiteis30kilometersaway.Whatwouldbethebestchoiceforreplication？（）
单项选择题 WhatistherequiredelementforencryptionkeymanagementonanLTO-5drivewithinatapelibrary？（）