Due to operational c...

单项选择题Due to operational commitments， a system has a very short backup window during the week， but is not used from Saturday morning through Sunday at Midnight. Which of the following minimizes backup time， while providing the best data restore coverage？（）

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

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1.单项选择题A system administrator performs a full backup every Saturday evening and incremental backups the rest of the week. The system failed on Thursday and needs to be restored. Which backup tapes will be required to restore the system to its most recent recoverable state？（）

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

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2.单项选择题A system administrator used the savevg command to back up the testvg each night. There is now a requirement to exclude the /test/static filesystem from the backup. How can this be accomplished？（）

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

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3.单项选择题How can a directory be excluded from a mksysb backup of the following？（）

A.Put an entry in the /etc/exclude.rootvg file
B.Put an entry in the /etc/mksysb.exclude file
C.Remove the directory’s entry from the mksysb /image.data file
D.Remove the directory’s entry from the /var/adm/ras/bosinst.data file

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4.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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5.单项选择题In which directory are the basic Linux commands such as gzip， gunzip and zcat installed？（）

A./opt/freeware/bin
B./usr/bin/freeware
C./var/freeware/bin
D./usr/sbin/freeware

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6.单项选择题A system administrator has an application that has the data in volume group appvg. Which of the following commands will back up the contents of appvg to the tape in /dev/rmt0 and check for any read errors？（）

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

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7.单项选择题A pSeries server is being used as a file server and all data is stored on a non-root volume group and resides on mounted filesystems. Which of the following commands provides the quickest way to backup all of the data and filesystem definitions？（）

A.tar
B.cpio
C.savefs
D.savevg

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8.单项选择题A company uses raw logical volumes. Which command can be used to back up the data in the raw logical volumes to a tape？（）

A.dd
B.tar
C.cpio
D.mksysb

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9.单项选择题A system administrator is attempting to restore some files from a backup tape. The restore failed. The system administrator suspects the block size of the tape drive is incorrect. Which of the following commands can be used to determine the block size of the backup tape？（）

A.dd
B.tar
C.cpio
D.restore

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10.单项选择题A system administrator wants to automatically eject the backup tape each night after the backup is complete. Which command can be used to eject the tape？（）

A.tar
B.tctl
C.rmdev
D.backup

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