单项选择题
A.RAID-0
B.RAID-1
C.RAID-5
D.RAID-10
单项选择题 Acustomerrecentlypurchasedanewx3550M3serverandoneoftheharddriveshasfailed.Thecustomerhasastandardwarranty.Theycalledyouaskingforareplacement.Whichactionshouldthecustomertake？（）
单项选择题 AcustomerwantsaBladetorunaverymemoryintensiveapplication.Theyrequire48GBwithlaterexpansionto160GBusing4GBDIMMs.Whichofthefollowingproductssupportsthisrequirement？（）
单项选择题 Acustomerwantstoupdatetheirsystemwiththelasteddrivers.Whichthefollowingtoolyousuggest？（）