问题:单选题Using the schedtune output, memory is considered over-committed if:()Amore than one process is spinning.Bmore than 4 processes become active.Cthe system schedules more than 16 processes.Dthe pageouts divided by page steals is greater than 1/h.
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问题:单选题The nice value is 80 in the ps listing. Which command is used to change this to a value of 100?()Arenice 100 {PID}Brenice -n 20 {PID}Crenice --20 {PID}Drenice -n -100 {PID}
问题:单选题Which of the following commands displays the number of system calls per second that are being executed?()AsarBpstatCiostatDfilemon
问题:单选题Which of the following tools should be used to report in-depth information about file fragments?()AdefragfsBistatCfilemonDfileplace
问题:单选题Comprehensive Service Level Agreements typically do not address:()ARoles & responsibilitiesBHeadcount & budgetsCReporting policiesDPenalites
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?()AtprofBiostatCvmstatDfilemon
问题:单选题Which of the following commands can be used to watch system errors as they are logged?()Asmit errptBsmit errdemonCsmit alogDsmit syslogd
问题:单选题Which of the following commands can be used to clean up a failed software installation process?()Ainstallp -DBinstallp -dCinstallp -CDinstallp -c
问题:单选题Page replacements algorithm steals file pages only when percent of RAM occupied by filepages()Afalls below minperm.Bis between minperm and maxperm.Chigher than maxperm.Dlower than maxperm.
问题:单选题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?()Afoo ; lsps -sBtprof -kx ; fooCiostat ; foo ; iostatDvmstat -s ; foo ; vmstat s
问题:单选题Which of the following commands should be used to determine which disk of a system is experiencing a disk I/O performance problem?()AfilemonBistatCvmstatDiostat
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?()Abos.rte.control (WLM)Bbos.perfCxlC.rteDperfagent.tools
问题:单选题A typical example of a process # 19082 in the /proc file would be: # ls -l /proc/19082 total 0 dr-xr-xr-x 1 root system 0 Sep 15 15:12 . dr-xr-xr-x 1 root system 0 Sept 15 15:12 .. -rw------- 1 root system 0 Sept 15 15:12 as -r-------- 1 root system 128 Sept 15 15:12 cred --w------- 1 root system 0 Sept 15 15:12 ctl dr-xr-xr-x 1 root system 0 Sept 15 15:12 lwp -r-------- 1 root system 0 Sept 15 15:12 map dr-x------ 1 root system 0 Sept 15 15:12 object -r--r--r-- 1 root system 448 Sept 15 15:12 psinfo -r-------- 1 root system 1024 Sept 15 15:12 sigact -r-------- 1 root system 1520 Sept 15 15:12 status -r--r--r-- 1 root system 0 Sept 15 15:12 sysent Writing to which of the following files will allow the owner to stop a process?()AstatusBsysentCctlDas
问题:单选题While monitoring a system that is CPU bound, which of the following output is most likely to occur?()AABBCCDD
问题:单选题Which of the following commands should be used to monitor disk utilization during the time a system is experiencing a disk I/O performance problem?()AistatBtopasCvmstatDfilemon
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?()AsarBlslvCiostatDfilemon
问题:单选题When a system has both online transaction processing as well as large batch processing, which of the following common procedures will best help to improve system performance?()ABoost the priority of batch jobs.BSchedule batch runs to reduce contention with OLTP.CSchedule OS maintenance such that it includes frequent application of PTFs.DPerform incremental backups of transaction processing and full backups of batch processing.
问题:单选题An AIX system administrator needs to adjust the maximum amount of memory that can be pinned. Which of the following commands is used to make the change?()Avmtune -MBsvmon -mCvmstat -sDschedtune -m
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?()AnoBnfsoCvmtuneDexportfs