单选题During a system boot, an error message appears concerning a paging space, paging00. The paging space was located on hdisk2, but the disk was removed from the system without proper software procedures. Which of the following commands should be used as t

第1题：

Which of the following commands should be used to monitor disk utilization during the time a system is experiencing a disk I/O performance problem？（）

• A、 istat
• B、 topas
• C、 vmstat
• D、 filemon

第2题：

A system administrator has run topas on a server.  The output shows that the %iowait of the system is 60% and that most of the disk activity is on hdisk0.  Which of the following procedures should be performed to fix this problem?（）

• A、 Replace the hard disk with a faster disk drive. 
• B、 Add another paging space on another hdisk. 
• C、 Spread the data hdisk0 across several hdisks. 
• D、 Nothing, since %iowait is a measurement of CPU time.

第3题：

第4题：

An AIX 5L system has 2 active paging space devices - /dev/hd6 at 64MB in the rootvg and /dev/page01 at 256MB in the datavg. The system administrator has determined that only 192MB of active paging space is actually required and wants to reclaim some of the disk space for use by a new application. Which command should be used to reduce the size of /dev/page01？（）

• A、chps
• B、rmps
• C、chdev
• D、swapoff

第5题：

A user is complaining that they ran out of paging space.  Which of the following will address this and  provide best performance（）

• A、Expand the default paging space to the largest possible size
• B、Create a new larger paging space
• C、Create additional paging spaces of equal size on different disks
• D、Reboot system

第6题：

During a system administrator attempt to boot a server in normal mode, the boot process displays LED 299 and Led 201 and then stops. The LED 201 indicates that a ROS init or checkstop was detected. Which of the following options is the most probable cause?（）

• A、A corrupted JFS log device
• B、A corrupted boot logical volume
• C、An incorrect rc.boot entry in /etc/inittab file
• D、A problem initializing paging space

第7题：

A system administrator has a failed disk drive that is mirrored to another disk drive. They successfully removed the logical volume copies off of the failed disk drive. Which of the following commands should be used to remove the failed disk drive from the volume group？（）

• A、chvg
• B、rmdev
• C、reducevg
• D、exportvg

第8题：

第9题：

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?（）

• A、extendvg
• B、cfgmgr
• C、reducevg
• D、varyoffvg

第10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.