单项选择题

A.Issue the command： export EDITOR= usr bin editB.Modif……

Which action changes the default editor for ALL users on the system from vi to edit of the following？（）

A.Issue the command： export EDITOR=/usr/bin/edit
B.Modify /.profile and change the EDITOR variable to /usr/bin/edit
C.Modify /etc/environment and add EDITOR=/usr/bin/edit export EDITOR
D.Modify /etc/security/defaults and change the EDITOR value to /usr/bin/edit

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热门试题

单项选择题Howdoesasystemadministratoraddanewusertoasystem？（）

A.mkuser
B.cruser
C.adduser
D.edit /etc/password

单项选择题Auserwantstobepermanentlyaddedtothedbagroup.Whichcommandorprocesscanbeusedtoaccomplishthis？（）

A.chgrp
B.chuser
C.setgroups
D.edit /etc/security/group

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