单选题 Which of the following RAID levels provide the best performance for a system where there are mostly writes occurring？（）
rmss is a part of performance toolbox and stands for Reduced Memory System Simulator
rmss is a part of perfpmr and stands for Real Memory System Simulator
rmss is part of the standard bos.perf filesets and stands for Redundant Memory System Simulator
rmss is part of WLM and stands for Real Memory System Simulator
ping and arp
lsattr and ifconfig
netstat and iostat
iptrace and tcpdump
单选题 Which of the following procedures WILL NOT increase contiguous free space on a the filesystem /data1， located on /dev/lv01， that is heavily fragmented？（）
Run defragfs -r /data1； defragfs /data1
Run defragfs -r /dev/lv01； defragfs /dev/lv01
Back up the filesystem by name， unmount the filesystem， recreate the filesystem by running mkfs /dev/lv01， and restoring the data from the backup.
Back up the filesystem by inode， unmount the filesystem， recreate the filesystem by running mkfs /dev/lv01， and restoring the data from the backup.
单选题 When trying to run topas on an AIX 4.3.x system， the system administrator gets the error message "ksh： topas： not found." Which of the following options is the most likely reason this occurred？（）
The fileset bos.perf.tools is not loaded on this system.
The fileset perfagent.tools is not loaded on this system.
The command topas is only available in AIX version 5.x.
The path variable does not include /usr/samples/kernel/. Either add it to the .profile or cd to that location and run the command again.
单选题 In order to determine how efficiently an application is reading and writing data， which of the following utilities will report read and write sizes on disk I/O requests？（）
more than one process is spinning.
more than 4 processes become active.
the system schedules more than 16 processes.
the pageouts divided by page steals is greater than 1/h.
单选题 Which of the following tools should be used to display the location of unused physical partitions on a disk drive？（）
The sys is high when po is high.
The po represents the number of page steals.
The low values usually indicate insufficient paging space.
The low values usually indicate sufficient memory for the load.
单选题 Which of the following WLM commands should be used to monitor performance on a system running wlm？（）
Your network consists of a single Active Directory domain. The domain contains more than 300 group objects. The group objects are divided between several regional organizational units (OUs). You need to create a list of all groups that have names that begin with the word Sales. Which command should you use? （）