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}
Saturday, January 6, 2024
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?()Anetstat -v ent0Bchdev -l ent0 -a reset=trueCentstat -r ent0DEthernet interface values cannot be reset
Wednesday, May 3, 2023
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
Thursday, December 14, 2023
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.
Sunday, June 11, 2023
问题:单选题Which of the following tools should be used to report in-depth information about file fragments?()AdefragfsBistatCfilemonDfileplace
Wednesday, February 21, 2024
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
Monday, January 15, 2024
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?()Alslpp -l perfmgr.* ; cd /tmp ; installp -ldBsmitty list_software ; oslevel -gCsmitty list_software ; lslpp -f perfmgr*Dcd /usr/sys/install.images ; ls -la ; cd /tmp ; ls -la
Monday, January 23, 2023
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?()ARun defragfs -r /data1; defragfs /data1BRun defragfs -r /dev/lv01; defragfs /dev/lv01CBack up the filesystem by name, unmount the filesystem, recreate the filesystem by running mkfs /dev/lv01, and restoring the data from the backup.DBack up the filesystem by inode, unmount the filesystem, recreate the filesystem by running mkfs /dev/lv01, and restoring the data from the backup.
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 show the percentage of time that any given disk was busy?()ApsBtprofCiostatDvmstat
Sunday, February 11, 2024
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 tools should be used to analyze the placement of file fragments on a mirrored logical volume?()AdfBlslvCfilemonDfileplace
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 displays the number of system calls per second that are being executed?()AsarBpstatCiostatDfilemon
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.
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Which of the following metrics provided by the iostat report is used to initially determine if a system is I/O bound?()A% idleB% sysC% userD% iowait
Monday, March 20, 2023