单项选择题
A.Use base media to restore system to AIX 5.1.
B.Use an alt_disk_install and boot back to the AIX 5.1 rootvg.
C.Make a mksysb of the original AIX to restore back to the AIX 5.1 level.
D.Perform the AIX 5.2 upgrade using update_all with the commit option and reject filesets to return to AIX 5.1.
单项选择题 AsystemadministratorneedstoquicklymigrateamachinefromAIX5.1toAIX5.2.Theadministratorwillonlybeallowedenoughdowntimetorebootthemachine.Whichinstallationmethodshouldbeusedtoaccomplishthistask？（）
单项选择题 AsystemadministratorsuspectsthattherewereproblemswiththeAIXinstallationonapSeriesserver.Whichofthefollowingcommandscanbeused，withtheappropriateflags，toviewtheBOSinstallationoutputfiles？（）
单项选择题 AsystemadministratorcompletedanupgradeofthemaintenanceleveloftheirAIXsystem.Whichofthefollowingcommandsshouldberuntoverifythattheoperatingsystemisinaconsistentstate？（）