单选题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（）Atcopy /dev/rmt0.1 /dev/rmt1.1Bdd if=/dev/rmt0.1 of=/dev/rmt1.1Ctar -xvf /dev/rmt0.1tar -cvf /dev/rmt1.1Dcpio -ivcBDUM /dev/rmt0.1cpio -ovcBDUM. /dev/rmt1.1
单选题
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
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