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?()A filemonB istatC vmstatD iostat...
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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?()A foo ; lsps -sB tprof -kx ; fooC iostat ; foo ; iostatD vmstat -s ; foo ; vmstat s...
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While monitoring a system that is CPU bound, which of the following output is most likely to occur?()A AB BC CD D...
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?()A istatB topasC vmstatD filemon...
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?()A renice 100 {PID}B renice -n 20 {PID}C renice --20 {PID}D renice -n -100 {PID}...
问题:单选题Which of the following commands should be used to tune parameters of devices that are displayed with lsattr?()A chdevB cfgmgrC vmtuneD schedtune...
问题:单选题Given the following on a system that is not a name server, which will be the first area searched to resolve a host name to an IP address?() #cat /etc/resolv.conf domain abc.century.com nameserver 192.9.201.1 nameserver 192.9.201.2 #cat /etc/net...
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,uncomme...
问题:单选题Which of the following tools should be used to report in-depth information about file fragments?()A defragfsB istatC filemonD fileplace...
问题:单选题Which of the following commands is run to adjust the number of free paging-space pages at which AIX begins killing processes?()A schedtuneB rmssC rmpsD vmtune...
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 perfm...
问题:单选题Which of the following commands should be used to set network attributes on a currently running kernel?()A noB chdevC vmtuneD schedtune...
问题:单选题Comprehensive Service Level Agreements typically do not address:()A Roles responsibilitiesB Headcount budgetsC Reporting policiesD Penalites...
问题:单选题In order to ensure best read performance, which of the following indicates how large an application’s read buffer size should be if the filesystem to be read is striped across N disks using LVM striping?()A N times the stripe unit sizeB N times the V...
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...
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?()A Boost the priority of batch jobs.B Schedule batch runs to reduce content...
问题:单选题Page replacements algorithm steals file pages only when percent of RAM occupied by filepages()A falls below minperm.B is between minperm and maxperm.C higher than maxperm.D lower than maxperm....