单项选择题 An administrator wants to restore the /etc/resolv.conf file from a mksysb backup onto server1. After the mksysb is mounted in /mnt/backup/ from the local nim server. Which command should be run to restore the file？（）

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？（）