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IBM(000-234) 问题列表
问题
单选题Which of the following commands should be used to monitor the average number of threads in the scheduler’s run queue for any given interval？（）A
tprofB
iostatC
vmstatD
filemon
问题
单选题Where can the perfagent.tools fileset be found？（）A
AIX Base CDB
AIX BonusPak CDC
AIX Performance Toolbox product CDD
Performance AIDE product CD
问题
单选题Which of the following commands should be used to reset the Virtual Memory Manager tuning parameters to their default values？（）A
schedtune -tB
vmtune -RC
schedtune -rD
schedtune -D
问题
单选题Which of the following commands should be used to watch system errors as they are logged？（）A
errpt -cB
tail -f /var/adm/ras/errlogC
syslogd -dD
/usr/lib/errdemon -s 8192
问题
单选题A TCP/IP application receives files from a remote machine. The application reads 32 kilobytes of data at a time to the socket， but has not issued a system call to set the window size. Which of the following procedures should be performed on the personal machine to increase the throughput of the application？（）A
Increase the size of thewallB
Increase the size of sb_maxC
Increase the size of tcp_recvspaceD
Increase the size of tcp_sendspace
问题
单选题Which of the following commands should be used to view and change the network filesystem tuning parameters available on the system？（）A
noB
nfsoC
vmtuneD
exportfs
问题
单选题Which fileset includes the commands vmstat and sar？（）A
bos.perfB
bos.acctC
bos.adt.samplesD
perfagent.tools
问题
单选题Which of the following commands should be used to show how much data is read from or written to a particular logical volume， given there are several other logical volumes on the same disk？（）A
sarB
lslvC
iostatD
filemon
问题
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？（）A
bos.rte.control （WLM）B
bos.perfC
xlC.rteD
perfagent.tools
问题
单选题Which of the following statements are FALSE concerning the defragfs command？（）A
The defragfs command should not be run against file systems and logical volumes that contain mostly transitory information， such as /tmp.B
The defragfs command should not be run on a large JFS2 file system when running on a 32-bit kernel.C
The defragfs command can improve file system performance by increasing the file system’s contiguous free space.D
The defragfs command can only be run against file systems that are mounted with read-write permissions.
问题
单选题A small company would like help in identifying an apparent system performance problem on its internal mail server， especially to determine peak hour usage. What would be the first step in identifying the problem？（）A
cd /var/spool/cron/crontabs，uncomment the lines in the adm file， in order to start gathering statistics.B
cd /var/spool/cron/crontabs； uncomment the lines in the sys file， in order to start gathering statistics.C
cd /usr/lib/cron/； vi the adm file； startsrc -s sadcD
cd /usr/lib/cron/； vi the sys file； startsrc -s sadc
问题
单选题To examine the Exhibit， press the Exhibit button. Using the "ps -mo THREAD" output as shown in the exhibit， which of the following conclusions is most appropriate to draw？（）A
This is a uniprocessor systemB
The "prog" process has a nice value of 107C
There are two active processors on this systemD
The "prog" process will only be scheduled to run on processor 0
问题
单选题Which of the following metrics provided by the iostat report is used to initially determine if a disk is I/O bound？（）A
tinB
toutC
% idleD
% tm_act
问题
单选题When monitoring a system using vmstat with an interval， the metrics under page po represent which of the following phrases？（）A
The number pages over the limitB
The pages to paging space per secondC
The number of page operations per secondD
The number of processes waiting for page out
问题
单选题Which of the following commands can be used to review the system error logs？（）A
errpt -aB
errpt -lC
errdemon -lD
syslogd -r