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.
Thursday, December 14, 2023
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 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.
Monday, January 15, 2024
问题:单选题The nice value is 60 in the ps listing. Which command is used to change this to a value of 20?()Arenice -n -20 {PID}Brenice -n 20 {PID}Crenice -n -40 {PID}Drenice -n 40 {PID}
Monday, December 19, 2022
问题:单选题While monitoring a system that is CPU bound, which of the following output is most likely to occur?()AABBCCDD
Wednesday, February 21, 2024
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
Wednesday, May 3, 2023
问题:单选题Which of the following tools should be used to display the location of unused physical partitions on a disk drive?()Adf -kBlspsClslv -pDfileplace
Wednesday, September 20, 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After running the vmstat command, which of the following would most likely cause the value in the blocked column to be unusually high?()AKernel threadBToo many usersCMemory shortageDNetwork contention
Sunday, August 27, 2023
问题:单选题Where can the perfagent.tools fileset be found?()AAIX Base CDBAIX BonusPak CDCAIX Performance Toolbox product CDDPerformance AIDE product CD
问题:单选题Which of the following commands should be used to show DNS information?()AtraceBnetstatCifconfigDnslookup
Saturday, September 17, 2022
问题:单选题The system administrator notices that after running netstat -rn, several small c’s are showing up under the flags columns, and routes that were not defined are also showing up. How can these cloned routes be stopped?()ABy default cloned routes are turned on. To turn cloned routes off issue the command: #no -o tcp_pmtu_discover=0 #no -o udp_pmtu_discover=0 and add to the rc.net or rc.bsdnet file for next rebootBBy default cloned routes are turned on. To turn cloned routes off issue the command: # no -o tcp_pmtu_discover=1 #no -o udp_pmtu_discover=1 and add to the rc.net or rc.bsdnet file for next rebootCBy default cloned routes are turned on. To turn cloned routes off issue the command: #no -o ipforwarding=0 and add to the rc.net or rc.bsdnet file for next rebootDBy default cloned routes are turned on. To turn cloned routes off issue the command: #no -o ipforwarding=1 and add to the rc.net or rc.bsdnet file for next reboot
Friday, January 12, 2024
问题:单选题Comprehensive Service Level Agreements typically do not address:()ARoles & responsibilitiesBHeadcount & budgetsCReporting policiesDPenalites
Sunday, February 11, 2024
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Which of the following commands should be used to determine whether a logical volume is contiguous across a disk?()AlslvBlsfsClspvDfileplace
Saturday, December 16, 2023
问题:单选题In AIX 5L and later, the operating system supports the /proc filesystem. What would be the best description of the /proc filesystem?()AIt is a pseudo filesystem that maps processes and kernel data structures to corresponding files.BIt is a JFS mounted filesystem that provides an exact representation of what is happening to a proces at a single and discrete point of time.CIt is a JFS mounted filesystem that maps processes and read-only files related to these processes.DIt is a pseudo filesystem that contains data that represents the state of the parent processes (but not their threads) in a system.
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
Friday, May 3, 2024