单选题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 rootvgB synclvm rootvgC varyonvg rootvgD synclvodm rootvg

第1题：

第2题：

Which attribute of a logical volume can NOT be changed after it is created？（）

• A、The placement of the logical volume
• B、The stripe size of the logical volume
• C、The upper bound of the logical volume
• D、The intra-policy of the logical volume

第3题：

第4题：

A customer needs to remove an unnecessary, but active paging space called paging00 on an AIX 5L system.  Which of the following procedures should be used to properly remove the paging space with the least amount of disruption?（）

• A、Remove the paging space with the rmps command. 
• B、Disable the paging space with the chps command, swapoff /dev/paging00, and remove the paging00 logical volume with the rmps command. 
• C、Reboot the system and disable the paging space with the rmps command. 
• D、Disable the paging space with the chps command, swapoff /dev/paging00, reboot the system, remove the paging00 logical volume with the rmps command. 

第5题：

All of the following statements accurately describe process for administering file systems EXCEPT:（）

• A、A logical volume must exist prior to running the crfs command to create a file system
• B、A file system must be unmounted before it can be removed
• C、Defining a file system imposes a structure on a logical volume
• D、Removing a file system using rmfs automatically removes the underling logical volume

第6题：

The system administrator notices that there is an I/O bottleneck on one of three disks in datavg volume group. This problem disk contains the JFS log， loglv00 and one filesystem， /mydatabase.  There are no other logical volumes on this disk.  Which of the following options would be the best solution？（）

• A、 Increase the size of the JFS log logical volume so more transacations can be written to this log.
• B、 Create a second， additional JFS log and have the /mydatabase logical volume point to both JFS logs.
• C、 Migrate the JFS log device to another physical disk in the same volume group.
• D、 Only one JFS log device for each volume group can be used.  Use the migratepv command to move the JFS log device to an empty disk in another volume group.

第7题：

Which of the following statements is TRUE about the reorgvg command?（）

• A、No logical volumes wil be moved if write-verify is set to yes.
• B、No action will be performed if it cannot fulfill the allocation requirements.
• C、Physical partitions of a logical volume will be moved if the logical volume's relocatable flag is set to "no".
• D、Physical partitions will be moved as close as possible to the positions specified, if the allocation requirements cannot be fulfilled.

第8题：

第9题：

An  administrator  has  a  server  experiencing  performance  problems  with  logical  volumes  within  a particular volume group.  Which command can report I/O statistics for logical partitions with each logicalvolume within the volume group（）

• A、Islv
• B、vmstat
• C、iostat
• D、Ivmstat

第10题：

Which command will remove the ‘stale’ status from a logical volume?（）

• A、syncvg -p
• B、syncvg -l
• C、synclv -p
• D、synclv -l