单项选择题
An administrator has encountered an error while patching a virtualized guest machine. Which of the following technologies would allow the administrator to restore to a pre-patched state the FASTEST？（）
A.Cloning B.Bare Metal Restore C.OS Restore D.Snapshot
单项选择题 Anadministratorhasexperiencedminorelectricalshockswhentouchingmetalsurfacesinthe data center.WhichofthefollowingistheMOSTlikelycause？（）
单项选择题 WhichofthefollowingusesaswitchingfabrictoconnectstorageLUNstohosts？（）
单项选择题 WhichofthefollowingcantransmitblocklevelstorageoverEthernet？（）
