单项选择题
A.rmdev -l /dev/pts
B.touch /etc/nologin
C.chdev -l sys0 -a nologin
D.chuser -a login=false ALL
单项选择题 IBMremotesupportforhardwaremaintenanceisrequiredforseveralmissioncriticalPower595servers.Thedatacenterisverysecurityconsciousanddoesnotallowinternetaccess.HowshouldanadministratorconfigureoutboundconnectivityofElectronicServiceAgent？（）
单项选择题 WhichcommandwilldetermineiftheTrustedComputerBaseisenabledonasystem？（）
单项选择题 WhichwebsiteprovidesaccesstoAIXTechnologyLevelupdates？（）