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單項(xiàng)選擇題

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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單項(xiàng)選擇題

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

單項(xiàng)選擇題

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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