单项选择题
A System p 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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相关考题
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单项选择题
During system boot， the boot process hangs at LED 0551. Which of the following is a likely cause（）
A.A network problem
B.corrupted filesystem
C.corrupted ODM
D.corrupted /etc/inittab file -
单项选择题
Whichcronentrywillrun/usr/local/bin/myscriptat0500everySaturday（）
A.5 0 * * 6 /usr/local/bin/myscript
B.6 * * 5 0 /usr/local/bin/myscript
C.0 5 * * 6 /usr/local/bin/myscript
D.0 5 6 * * /usr/local/bin/myscript -
单项选择题
A System p administrator wants to NFS mount a filesystem from server "alpha" to server "bravo". Which of the following commands should be issued from "bravo" to determine which filesystems are being exported by server "alpha"（）
A.lsexport alpha
B.showmount -e alpha
C.exportfs -l alpha
D.mount -e nfs alpha
