单项选择题
A user wants to be permanently added to the dba group. Which command or process can be used to accomplish this？（）
A.chgrp
B.chuser
C.setgroups
D.edit /etc/security/group
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相关考题
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单项选择题
Duetooperationalcommitments，asystemhasaveryshortbackupwindowduringtheweek，butisnotusedfromSaturdaymorningthroughSundayatMidnight.Whichofthefollowingminimizesbackuptime，whileprovidingthebestdatarestorecoverage？（）
A.Full backups every night
B.Differential backups every night
C.Full backup Saturday night， incremental backups the rest of the week
D.Full backup Saturday night， differential backups the rest of the week -
单项选择题
AsystemadministratorperformsafullbackupeverySaturdayeveningandincrementalbackupstherestoftheweek.ThesystemfailedonThursdayandneedstoberestored.Whichbackuptapeswillberequiredtorestorethesystemtoitsmostrecentrecoverablestate？（）
A.Saturday’s full backup tape only
B.Wednesday’s incremental backup tape only
C.Saturday’s full backup and Wednesday’s incremental backup tapes
D.Saturday’s full backup and Sunday’s through Wednesday’s incremental backup tapes -
单项选择题
Asystemadministratorusedthesavevgcommandtobackupthetestvgeachnight.Thereisnowarequirementtoexcludethe/test/staticfilesystemfromthebackup.Howcanthisbeaccomplished？（）
A.Use the -X flag on the savevg command
B.Put an entry in the /etc/exclude.testvg file
C.Remove the /test/static entries from the /vgdata/testvg.data file
D.Use the touch command to create /test/static/.exclude before using savevg
