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?()AnetpmonBnetstatCnfsstatDvmstat
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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 of the following metrics provided by the iostat report is used to initially determine if a disk is I/O bound?()AtinBtoutC% idleD% tm_act
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While monitoring a system that is CPU bound, which of the following output is most likely to occur?()AABBCCDD
问题:单选题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?()AIncrease the size of the JFS log logical volume so more transacations can be written to this log.BCreate a second, additional JFS log and have the /mydatabase logical volume point to both JFS logs.CMigrate the JFS log device to another physical disk in the same volume group.DOnly one JFS log device for each volume group can be used. Use the migratepv command to move the JFS log device to an empty disk in another volume group.
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The maxmbuff is low by default for systems expecting high network traffic and/or usage. Which of the following utilities should be used to report requests for mbufs that have failed and/or been denied?()AnoBpingCnetstatDifconfig
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Comprehensive Service Level Agreements typically do not address:()ARoles & responsibilitiesBHeadcount & budgetsCReporting policiesDPenalites
问题:单选题Which of the following commands is most useful in initially collecting data to determine a network performance problem?()ApingBtraceCifconfigDlsattr
问题:单选题In an iostat report, which of the following options best describes the value of % idle?()AA representation of the equation (tps/kbps)*100BThe percentage of time the disks are idle with no activityCThe percentage of time the disks are idle with no outstanding CPU requestsDThe percentage of time the CPU is idle with no outstanding disk I/O requests
问题:单选题Which of the following options would best help to reduce packet fragmentation for a TCP application transferring large amounts of data between servers across a path of multiple networks?()AAdjust Path MTU attributes, using the no command.BAdjust the status queue size on the adapters, using the chdev command.CAdjust ipforwarding to enabled, using the no command.DAdjust tcp_maxburst to enabled, using the no command.
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?()AThe fileset bos.perf.tools is not loaded on this system.BThe fileset perfagent.tools is not loaded on this system.CThe command topas is only available in AIX version 5.x.DThe path variable does not include /usr/samples/kernel/. Either add it to the .profile or cd to that location and run the command again.