A.The file system superblock is dirty. It can be replac……

单项选择题An administrator is attempting to recover afilesystem that fails to manually unmount. The fsck command produces the following output: The current volume is: dev fslv02 File system is currently mounted. Invalid file system size in the primary superblock. Invalid file system size in the secondary superblock. Primary superblock is corrupt. Secondary superblock is corrupt. fsck: Cannot continue tried to mount Which steps will resolve the problem?（）

A.Reboot the server into maintenance mode and run 'fsck' with the '-p' parameter while the filesystem is mounted
B.Reboot the server into maintenance mode and run 'fsck' with the '-y' parameter whilethe filesystem is unmounted
C.Force a umount of the filesystem with 'umount -F /dev/fslv02', and then run 'fsck p /dev/fslv02' while the file system is unmounted
D.Force a umount of the filesystem by varying off the hosting volume group and then varyon the volume group. This will permit 'fsck -y' to be run against the failing filesystem

单项选择题Which command synchronizes or rebuilds the logical volume control block, the device configuration database, and the volume group descriptor areas on the physical volumes?（）

A.syncvg rootvg
B.synclvm rootvg
C.varyonvg rootvg
D.synclvodm rootvg

单项选择题What can be done to enable the debug information for functions to be displayed when using ‘ksh - x’to debug a script?（）

A.Run the script using 'ksh -fx'.
B.Run the script using 'ksh -a function -x'.
C.Edit the script and add 'set -x' at the beginning.
D.Edit the script and add 'set -x' at the beginning of each function.

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?（）

A.The system is waiting for user input to define console type lft0.
B.The system is waiting for user input to define console type tty0.
C.The system is waiting for user input to define console type vty0.
D.The system is waiting for user input to define console type vsa0.

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

A.varyon of the paging device failed.
B.fsck of the root (/) filesystem failed.
C.varyon of the root volume group failed.
D.IPL device could not be opened or a read failed.