An LPAR has hung during a reboot， reporting a 0552 LED code.
What does this signify？（）

单项选择题A booting system appears to be hanging with an LED code of 0c54. What is the likely cause？（）

A.An AIX install is in progress.
B.The rootvg volume group is corrupt.
C.The TCPIP configuration is incorrect.
D.At least one paging device cannot be varied on.

单项选择题An application writes to a log file in the  logs filesystem that is full. After the log file is deleted，‘df’ still shows the filesystem as 100% full.  What is the likely cause of the problem and what will resolve it？（）

A.The deleted file is still open by the application. The system must be rebooted before ‘df’ will show the reduction in the filesystem.
B.The deleted file is still open by the application. The application must be stopped before ‘df’ will show the reduction in the filesystem.
C.The filesystem is still marked as full in the /etc/fs.status file. The system must be rebooted before ‘df’ will show the reduction in the filesystem.
D.The filesystem is still marked as full in the /etc/fs.status file. The application must be stopped before ‘df’ will show the reduction in the filesystem.

单项选择题Whichcommandwillretrieve unixanddumpfromthedumpdevice？（）

A.snap -R
B.snap -D
C.snap -U
D.snap -N

单项选择题WhichcommandwilldebugtheAIXkernel？（）

A.kdb
B.snap
C.truss
D.trace

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？（）

A.Run diag and select the ’Certify Media’ task.
B.Perform a read and write test on the disk and monitor errorlog.
C.Update the disk firmware to the latest level and monitor errorlog.
D.Format the disk to ensure bad blocks are omitted from the disk layout.