单项选择题 TheHMCsoftwarehasjustbeenupgradedremotelyviatheWebSMclient.Itnowneedstoberebootedtomaketheupdateactive.Howcanthisbeaccomplished?（）

单项选择题 Whichcommandisusedtolistinformationabouteachphysicalvolumeinvolumegrouptestvg？（）

单项选择题 Anadministratorsuspectssomeoneismodifyingasensitivefile，andwantstologaccessinformationforthisfile.WhichofthefollowingAIXcomponentaccomplishesthis（）

单项选择题 Howcanthesystemadministratordetermineifasystemisrunningin32－bitor64－bitmode？（）

单项选择题 Acustomerindicatesthatasystemisexperiencingprintingproblems.Aftercheckingthesystem,andsuccessfullyprinting,noproblemhasbeenfound.Whichofthefollowingproceduresshouldbeperformednexttofurtherclarifytheproblem?（）A.Rebootthesystem.B.Checkthefilesystemsizes.C.Havethecustomerrepeatthetasktorecreatetheproblem.D.Informthecustomerthatnoproblemswerefound，andtocallbackiftheproblemreoccurs.