单项选择题
A.Biometric
B.Keypad
C.Barcode
D.Key lock
单项选择题 Atechnicianhasjustfinishedinstallinganewserverintoaserverrack.Whichofthefollowing shouldthetechniciandoNEXTtocompletetheinstallationdocumentation？（）
单项选择题 WhichofthefollowingserverrolesallowsaservertotranslatefullyqualifieddomainnamesintoIP addresses？（）
单项选择题 WhenatechnicianlefttheserverroomMondayeveningeverythingwasoperational.Whenthe technicianreturnedTuesdaymorning，thefrontbezelwasoffofthemailserver，andithadbeen poweredoff.WhichofthefollowingshouldbecheckedFIRST？（）