单选题
The system administrator has determined that a new JFS log needs to be created on a different disk， in order to decrease an I/O bottleneck. Which of the following steps are the most correct？（）
mklv -t jfslog -y LVname VGname 1 PVname logform /dev/LVname chfs -a log=/dev/LVname /filesystemname m ount and unmount filesystem
mklv -t jfslog -y LVname VGname PVname unmount filesystem vi /etc/filesystems， change entry for lv to point filesystem to new JFS log mount filesystem
mklvcopy -a jfslog -y LVname VGname 1 PVname chfs -a log=/dev/LVname /filesystemname unmount and mount file system
mklvcopy -t jfslog -y LVname VGname 1 PVname logform /dev/LVname vi /etc/filesystems， change entry for lv to point filesystem to new JFS log unmount and mount filesystem
单选题
The maxmbuff is low by default for systems expecting high network traffic and/or usage. Which of the following utilities should be used to report requests for mbufs that have failed and/or been denied？（）
no
ping
netstat
ifconfig
单选题
When monitoring a system using /usr/bin/vmstat with an interval， the metrics under page pi and page po represent which of the following phrases？（）
The pages to and from paging space per second
The page intervals and page operations per second
The page interrupts and page operations per second
The page segments transferred between pi and po devices per second
单选题
Which of the following filesets needs to be installed in order to use topas at AIX Version 5.x？（）
perfagent.tools
bos.perf.tools
bos.adt.samples
perfmgr.local
单选题
To examine the Exhibit， press the Exhibit button. Using the output of "lslv" as shown in the exhibit， and given that logical volume lv00 is only located on hdisk0， which of the following conclusions is most appropriate to draw？（）
Logical volume lv00 is fragmented on hdisk0
Logical volume lv00 size cannot be increased
Logical volume lv00 is used for paging space on hdisk0
Logical volume lv00 is the only logical volume on hdisk0
单选题
A system must be evaluated and tuned. In order to use a set of performance evaluation programs （e.g.， filemon， svmon， and tprof） which of the following packages should exist on the system in question？（）
bos.adt
bos.perf
Java.adt
perfagent.tools
单选题
Which of the following commands can be used to clean up a failed software installation process？（）
installp -D
installp -d
installp -C
installp -c
单选题
The nfsstat -c command shows zero badxid， but retrans and timeouts are sizeable， what is the most probable cause of the problem？（）
Too many nfsd’s running
Client and server with different buffer sizes
Bridges， routers or gateways are receiving too many fragmentated packets
Too few nfsd’s running
单选题
The system administrator has been getting complaints about slow performance from the server. After running vmstat the administrator notices average readings that show the free list （fre） approaching zero， as well as page-in （pi） and page-out （po） values to be high. Furthermore， the applications running are essential to daily business operations. Which of the following recommendations would provide the best overall improvement？（）
Increase physical disk
Increase number of CPU’s
Increase physical memory
Increase number of servers
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