单项选择题
A.savevg -mf /dev/rmt0 appvg
B.savevg -cvf /dev/rmt0 appvg
C.savevg -xvf /dev/rmt0 appvg
D.savevg -f /dev/rmt0 -V appvg
单项选择题 ApSeriesserverisbeingusedasafileserverandalldataisstoredonanon-rootvolumegroupandresidesonmountedfilesystems.Whichofthefollowingcommandsprovidesthequickestwaytobackupallofthedataandfilesystemdefinitions？（）
单项选择题 Acompanyusesrawlogicalvolumes.Whichcommandcanbeusedtobackupthedataintherawlogicalvolumestoatape？（）
单项选择题 Asystemadministratorisattemptingtorestoresomefilesfromabackuptape.Therestorefailed.Thesystemadministratorsuspectstheblocksizeofthetapedriveisincorrect.Whichofthefollowingcommandscanbeusedtodeterminetheblocksizeofthebackuptape？（）