单项选择题
A.Schedule enough down time to backup, upgrade and reboot.
B.Backup, upgrade, then schedule enough down time to reboot the system.
C.Backup, then schedule enough down time to upgrade and reboot the system.
D.There are no scheduling concerns because no down time is required.
单项选择题 Acustomerneedstoremoveanunnecessary,butactivepagingspacecalledpaging00onanAIX5Lsystem.Whichofthefollowingproceduresshouldbeusedtoproperlyremovethepagingspacewiththeleastamountofdisruption?（）
单项选择题 AnAIXsystemadministratorwantstobeabletomonitordiskusageandtobeabletocontrolhow muchdiskspacecanbeused.Whichcommandisruntoobtainthedesiredoutput?（）
单项选择题 Therootidissetsothatdirectloginisdisabled.Informationmustbereviewedrelatingtowhenrootaccesswasobtained.Inwhichofthefollowingfilesisthisinformationlocated?（）