单选题Which of the following sequence of commands extracts the third image from a tape that was created using the backup command?（）A tctl -f /dev/rmt0.1 fsf 2 ; tar -xv file3B tctl -f /dev/rmt0.0 fsf 3 ; dd if=file3 pf =/dev/mt0.1C tctl -f /dev/rmt0.1 fsf 2

第1题：

第2题：

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第4题：

A System p 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 -vf /dev/rmt0 appvg
• D、savevg -f /dev/rmt0 -V appvg

第5题：

An operator is asked to rewind and eject a tape from a system. Which command will accomplish this without touching the tape drive?（）

• A、tctl reset
• B、tctl rewind
• C、tctl return
• D、tctl rewoffl

第6题：

第7题：

第8题：

第9题：

An administrator needs to be able to restore a mksysb created on SERVER_A using a 4MM tape drive， to SERVER_B that only has an 8MM tape drive. There is an additional server that has a  4MM drive at /dev/rmt0 and an 8MM drive at /dev/rmt1.  Which of the following procedures should be followed to convert from the 4MM to 8MM format（）

• A、tcopy /dev/rmt0.1 /dev/rmt1.1
• B、dd if=/dev/rmt0.1 of=/dev/rmt1.1
• C、tar -xvf /dev/rmt0.1tar -cvf /dev/rmt1.1
• D、cpio -ivcBDUM < /dev/rmt0.1cpio -ovcBDUM. >/dev/rmt1.1

第10题：

A system administrator has been asked to migrate the dev_vg volume group from server A to server B. The dev_vg volume group contains a single filesystem named "/development". To prepare for migration， which of the following is the correct sequence of commands for removing the volume group from server A？（）

• A、exportvg dev_vg； umount /development； varyoffvg dev_vg
• B、varyoffvg dev_vg； umount /development； exportvg dev_vg
• C、umount /development； exportvg dev_vg； varyoffvg dev_vg
• D、umount /development； varyoffvg dev_vg； exportvg dev_vg