In a three-disk volume group, a disk was physically removed from the system without performing any software procedures to properly remove the disk. Which of the following commands should be performed to recover from this error?（）

单项选择题A system administrator boots a server in normal mode, the boot process displays and LED 551 and stops. LED 551 indicates the root volume group is being varied on. All of the following are probable causes of the problem EXCEPT:（）

A.The bosboot command failed to complete.
B.The JFS log device is corrupted.
C.The initttab file is corrupted.
D.The /dev entries or /etc files are missing.

单项选择题During an attempt to mount filesystems on the datavg volume group, the following error message occurs: 0506-323 Cannot get information about log device loglv00. The error is due to the fact that the jfslog used by these filesystems is located on a bad disk. Which of the following procedures should be performed to fix the error?（）

A.Run fsck on all filesystems using loglv00
B.Run the logform command against loglv00
C.Recreate the filesystems and resotre form a backup
D.Create a enw jfslog and change /etc/filesystems to point to this log

单项选择题A system administrator has just migrated a system from AIX V.4 x to Aix V5.x. The system is up and running and appears to be functioning properly. The following error message was received when running lppchk -v bos.rte V =4 R is >4 bos.rte V>5 bos.rte not installed. 5.1.0 lslpp -l | grep bos.rte shows 5.1.0 Which of the following options is the most likely solution to this problem?（）

A.bos.rte is corrupted and needs to be reinstalled.
B.The system administration needs to reboot the system.
C.The /root part of bos.rte was installed but not the user part. Reinstall the missing software.
D.The update CD needs to be applied with the smitty update_all command.

单项选择题If a restore from a NIM mksysb install hung on C54, which debug output would be best to investigate the problem?（）

A.export INST_DEBUG =yes
B.bosboot -aID -d /dev/ipldevic
C.nim - to check -a debug =yes
D.type 911 at -Welcome to BOS install- menu

单项选择题A system administrator is preparing to run a preservation install and would like to use and hdisk that was no longer needed in datavg. Which of the following processes should be used to make it available for configuration?（）

A.chdeb -1 hdiskxxx -a pv=clear; chdev -1 hdiskxx -a pv=yes
B.exportvg datavg; importvg -y rootvg hdiskxx
C.rmdev -1 hdiskxxx; mkdev -1 hdiskxxx -a pv=avail
D.reducevg datavg hdiskxxx; extendvg rootvg hdiskxxx