A. PDT attempts to identify performance problems automatically by collecting and integrating a wide range of performance， configuration and availability data.
B. PDT consists of three components， the collection component comprises a set of programs that periodically collect and record data， the retention component periodically reviews the collected data and discards data that is obsolete， and the reporting component periodically produces a diagnostic report from the current set of historical data.
C. PDT contains motif-based， AIX licensed programs that can easily access tools for system and network performance tuning， monitoring， and analysis.
D. PDT assesses the current state of a system and tracks changes in workload and performance. It attempts to identify incipient problems and suggest solutions before the problems become critical.
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A. perfmgr
B. perfagent.server
C. perfagent.tools
D. perfagent.client
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 sadc
D. cd /usr/lib/cron/； vi the sys file； startsrc -s sadc
A. AIX Base CD
B. AIX BonusPak CD
C. AIX Performance Toolbox product CD
D. Performance AIDE product CD
A. CPU
B. Memory
C. Disk I/O
D. Network I/O
A. perfagent.tools
B. bos.perf.tools
C. bos.adt.samples
D. perfmgr.local
最新試題
Which of the following RAID levels provide the best performance for a system where there are mostly writes occurring？（）
Which of the following phrases is TRUE regarding monitoring disk I/O with iostat？（）
Page replacements algorithm steals file pages only when percent of RAM occupied by filepages（）
The system administrator notices that there is an I/O bottleneck on one of three disks in datavg volume group. This problem disk contains the JFS log， loglv00 and one filesystem， /mydatabase. There are no other logical volumes on this disk. Which of the following options would be the best solution？（）
To examine the Exhibit， press the Exhibit button. While a user is compiling a C program， "vmstat 120 10" is run to determine the cause of a performance problem. Using the vmstat output as shown in the exhibit， which of the following conclusions is most appropriate to draw about the I/O bottleneck？（）
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？（）
To examine the Exhibit， press the Exhibit button. While a user is compiling a C program， "vmstat 120 10" is run to determine the cause of a performance problem. Given the vmstat output as shown in the exhibit， which of the following conclusions is most appropriate to draw about the machine？（）
After issuing the nfsstat -rs command， the null received column starts to grow. This indicates which of the following conditions？（）
Which command series should be used to determine whether file paging or paging space paging is a problem when running a program from an idle system？（）
Which of the following commands is run to adjust the number of free paging-space pages at which AIX begins killing processes？（）