题目内容：
Yournetworkincludestheserversshowninthefollowingtable.YoumanageyourexistingvirtualenvironmentbyusingMicrosoftSystemCenterVirtualMachineManager（VMM）2008R2.YouaredesigningahighlyavailableHyper-Vsolution.Youneedtominimizethedowntimeofvirtualmachines（VMs）duringmaintenanceperiods.Whataretwopossiblewaystoachievethisgoal？（）
A.CreateahostgroupthatcontainsServer1andServer2，andplaceeachVMonNFSstorage
B.CreateaHyper-VfailoverclusterofServer1andServer2，andplaceeachVMonaseparatesharediSCSIlogicalunitnumber（LUN）
C.CreateaHyper-VfailoverclusterofServer3andServer4，andplaceallVMsonasingleFibreChannellogicalunitnumber（LUN）
D.CreateaHyper-VfailoverclusterofServer3andServer4，andplaceallVMsonasingleiSCSIlogicalunitnumber（LUN）thatisconfiguredasaClusterSharedVolume（CSV）
参考答案：