单项选择题
A.path=$path：/usr/vac/bin； export path
B.path.=/usr/vac/bin； export $path
C.Modify the path environment variable in /etc/profile
D.Modify the path environment variable in /.profile
单项选择题 An administrator attempts to add a new 100GB logical volume to the datavg volume group， which resides on hdisk1. How can the administrator easily determine if there is enough space in datavg to create the logical volume（）
单项选择题 ASystempadminstratormustrecoveruserinformationfromasystemthatwillnotsuccessfullyboot.Whichofthefollowinginstallmethodswillaccomplishthis（）
单项选择题 Whenusingamksysbandbasemediatocloneasystem，whichofthefollowingwillcausetheinstallationtofail（）