单项选择题
A.Directory services server
B.NTP server
C.DHCP server
D.DNS server
单项选择题 WhenatechnicianlefttheserverroomMondayeveningeverythingwasoperational.Whenthe technicianreturnedTuesdaymorning，thefrontbezelwasoffofthemailserver，andithadbeen poweredoff.WhichofthefollowingshouldbecheckedFIRST？（）
单项选择题 WhichofthefollowingtypesofUPSwouldbeusedwithequipmentthatisverysensitivetopower fluctuations？（）
单项选择题 Atechnicianisinstallingaserverwithsixteen1TBdrives.Theywantthebenefitofbothspeed andredundancy.WhichofthefollowingRAIDconfigurationsshouldbeused？（）