单项选择题
A.1，2 and 5
B.1，5 and 6
C.2，3 and 6
D.1，4 and 5
单项选择题 AcustomeriscurrentlyusingEMC’sMirrorview/A.Theirprimarysiteis400kilometersawayfromthesecondarysite，andtheyhaveanRPOof4hours.WhatistheIBMequivalentproduct？（）
单项选择题 AcustomerwouldliketoseethecomponentsneededtoperformanupgradeontheirDS5100systemandgetalistpriceofthecost.Whattoolcanthestoragespecialistusetogeneratethisdocument？（）
单项选择题 WhyisProtecTIER’sHyperFactortechnologysuperiortoDataDomain’shash-baseddeduplicationalgorithms？（）