多项选择题
A.Flash
B.DLT4 tapes
C.CD-R
D.SDLT tapes
E.WORM
单项选择题 WhichofthefollowingistheMOSTlikelyreasonthatafeatureisnotavailableinavirtualized environment？（）
单项选择题 WhichofthefollowingisMOSTimportantforanadministratortoinvestigatepriortomakinga changeonaserver？（）
单项选择题 Which of the following RAID levels would provide the BEST performance with no fault protection?（）