当前分类： IBM(000-234)
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...
查看答案
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 obtain information about the software packages available on the installation media？（）A lsattrB inutocC installpD lsresource...
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...
问题：单选题Which of the following phrases is TRUE regarding monitoring disk I/O with iostat？（）A The iostat can only be run as the root userB There could be zero percent I/O wait and still be an I/O bottleneckC Any I/O wait time displayed in output of iostat is...
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？（）A vmtune -MB svmon -mC vmstat -sD schedtune -m...
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 determine which disk of a system is experiencing a disk I/O performance problem？（）A filemonB istatC vmstatD iostat...
问题：单选题Which of the following statements is TRUE concerning the po column of the vmstat command？（）A The sys is high when po is high.B The po represents the number of page steals.C The low values usually indicate insufficient paging space.D The low values ...
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....
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A system administrator would like to reset statistics to initial values prior to collecting device statistics on ent0 interface. Which of the following commands should be run to accomplish this？（）A netstat -v ent0B chdev -l ent0 -a reset=trueC entst...
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Which of the following procedures WILL NOT increase contiguous free space on a the filesystem /data1， located on /dev/lv01， that is heavily fragmented？（）A Run defragfs -r /data1； defragfs /data1B Run defragfs -r /dev/lv01； defragfs /dev/lv01C Back u...
