Which command will list all subsystem resources on a server？（）

单项选择题The‘fsck-p dev lv00’commandreturnedthefollowingmessage：Notarecognizedfilesystemtype. Whatisthelikelycauseoftheproblemandhowshoulditberesolved？（）

A.The file system superblock is dirty. It can be replaced from the VGDA
B.The logical volume superblock is dirty. It can be replaced from the VGDA
C.The file system superblock is dirty. It can be replaced from the secondary copy
D.The logical volume superblock is dirty. It can be replaced from the secondary copy

单项选择题An administrator is attempting to recover a filesystem 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： 0507-018 Superblock is corrupt and cannot be repaired. Both primary and secondary copies are corrupt.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 while the filesystem is unmounted.
C.Force a umount of the filesystem with ‘umount -F /dev/fslv02’， and then run ‘fsck -p /dev/fslv02’ while the filesystem 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Whichcommandsynchronizesorrebuildsthelogicalvolumecontrolblock，thedeviceconfigurationdatabase，andthevolumegroupdescriptorareasonthephysicalvolumes？（）

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

单项选择题Whatcanbedonetoenablethedebuginformationforfunctionstobedisplayedwhenusing‘ksh-x’todebugascript？（）

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.