单项选择题
A.tar -xvf /mnt/backup/server1.mksysb ./etc/resolv.conf
B.restore -Tvf /mnt/backup/server1.mksysb ./etc/resolv.conf
C.listvgbackup -f /mnt/backup/server1.mksysb -r ./etc/resolv.conf
D.restorevgfiles -xrm /mnt/backup/server1.mksysb ./etc/resolv.conf
单项选择题 Whichcommandsynchronizesorrebuildsthelogicalvolumecontrolblock，thedeviceconfigurationdatabase，andthevolumegroupdescriptorareasonthephysicalvolumes？（）
单项选择题 An administrator is installing AIX 6.1 on a new LPAR and the boot sequence has stalled with reference code 0c31. What is the most likely cause？（）
单项选择题 An administrator suspects problems on a SCSI hard disk，but upon running diagnostics，no errors were found. What must be done to check the condition of the drive？（）