单项选择题
Which command can a system administrator use to verify that a tape is in backup format and is readable by the system？（）
A.tar
B.tctl
C.tcopy
D.restore
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相关考题
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单项选择题
InwhichdirectoryarethebasicLinuxcommandssuchasgzip，gunzipandzcatinstalled？（）
A./opt/freeware/bin
B./usr/bin/freeware
C./var/freeware/bin
D./usr/sbin/freeware -
单项选择题
Asystemadministratorhasanapplicationthathasthedatainvolumegroupappvg.Whichofthefollowingcommandswillbackupthecontentsofappvgtothetapein/dev/rmt0andcheckforanyreaderrors？（）
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？（）
A.tar
B.cpio
C.savefs
D.savevg
