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IBM(000-234) 问题列表
问题
单选题Which of the following phrases is TRUE regarding monitoring disk I/O with iostat？（）A
The iostat can only be run as the root userB
There could be zero percent I/O wait and still be an I/O bottleneckC
Any I/O wait time displayed in output of iostat is an indication of severe I/O bottlenecks D
Running iostat without any arguments/parameters is sufficient for resolving I/O bottlenecks
问题
单选题Which of the following tools should be used to analyze the placement of file fragments on a mirrored logical volume？（）A
dfB
lslvC
filemonD
fileplace
问题
单选题Which of the following WLM commands should be used to monitor performance on a system running wlm？（）A
wlmcntrlB
wlmstatC
wlmcheckD
wlmassign
问题
单选题Which of the following statements is TRUE concerning the po column of the vmstat command？（）A
The sys is high when po is high.B
The po represents the number of page steals.C
The low values usually indicate insufficient paging space.D
The low values usually indicate sufficient memory for the load.
问题
单选题Which of the following tools should be used to display the location of unused physical partitions on a disk drive？（）A
df -kB
lspsC
lslv -pD
fileplace
问题
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？（）A
tprofB
iostatC
svmonD
filemon
问题
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？（）A
The fileset bos.perf.tools is not loaded on this system.B
The fileset perfagent.tools is not loaded on this system.C
The command topas is only available in AIX version 5.x.D
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.
问题
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？（）A
Run defragfs -r /data1； defragfs /data1B
Run defragfs -r /dev/lv01； defragfs /dev/lv01C
Back up the filesystem by name， unmount the filesystem， recreate the filesystem by running mkfs /dev/lv01， and restoring the data from the backup.D
Back up the filesystem by inode， unmount the filesystem， recreate the filesystem by running mkfs /dev/lv01， and restoring the data from the backup.
问题
单选题Which of the following commands should be used to identify packet sequence problems？（）A
ping and arpB
lsattr and ifconfigC
netstat and iostatD
iptrace and tcpdump
问题
单选题Which of the following is true about rmss？（）A
rmss is a part of performance toolbox and stands for Reduced Memory System SimulatorB
rmss is a part of perfpmr and stands for Real Memory System SimulatorC
rmss is part of the standard bos.perf filesets and stands for Redundant Memory System SimulatorD
rmss is part of WLM and stands for Real Memory System Simulator
问题
单选题Which of the following RAID levels provide the best performance for a system where there are mostly writes occurring？（）A
RAID 0B
RAID 1C
RAID 3D
RAID 5
问题
单选题When analyzing disk I/O performance， which of the following metrics and/or statistics should be included in the study？（）A
Disk size， stock availability， VHDCIB
Disk size， distance， temperature， and compatibilityC
Disk fragmentation， MTBF， and maintenanceD
Disk configuration， throughput， transactions， queues， and latencies
问题
单选题A System Administrator needs to determine if the system has the latest version of perfmgr and if the filesets copied to the /tmp directory are the latest. Which of the following command sequences would be required to accomplish this？（）A
lslpp -l perfmgr.* ； cd /tmp ； installp -ldB
smitty list_software ； oslevel -gC
smitty list_software ； lslpp -f perfmgr*D
cd /usr/sys/install.images ； ls -la ； cd /tmp ； ls -la
问题
单选题The system administrator notices that after running netstat -rn， several small c’s are showing up under the flags columns， and routes that were not defined are also showing up. How can these cloned routes be stopped？（）A
By default cloned routes are turned on. To turn cloned routes off issue the command： #no -o tcp_pmtu_discover=0 #no -o udp_pmtu_discover=0 and add to the rc.net or rc.bsdnet file for next rebootB
By default cloned routes are turned on. To turn cloned routes off issue the command： #no -o tcp_pmtu_discover=1 #no -o udp_pmtu_discover=1 and add to the rc.net or rc.bsdnet file for next rebootC
By default cloned routes are turned on. To turn cloned routes off issue the command： #no -o ipforwarding=0 and add to the rc.net or rc.bsdnet file for next rebootD
By default cloned routes are turned on. To turn cloned routes off issue the command： #no -o ipforwarding=1 and add to the rc.net or rc.bsdnet file for next reboot
问题
单选题Which of the following tools should be used to report current network status and is often used to check the reliability of a network？（）A
netpmonB
netstatC
nfsstatD
vmstat