问题：单选题Using the schedtune output， memory is considered over-committed if：（）Amore than one process is spinning.Bmore than 4 processes become active.Cthe system schedules more than 16 processes.Dthe pageouts divided by page steals is greater than 1/h.
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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}
问题：单选题When monitoring a system using vmstat with an interval， the metrics under page po represent which of the following phrases？（）AThe number pages over the limitBThe pages to paging space per secondCThe number of page operations per secondDThe number of processes waiting for page out
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 obtain information about the installed software？（）Asmit systemBsmit installpCsmit licensesDsmit list_software
问题：单选题Which of the following commands should be used to monitor the number of bytes read on any given disk？（）AtprofBtopasCfilemonDvmstat
问题：单选题Which of the following commands should be used to report statistics on network protocols used by the system？（）AlsattrBpstatCnetstatDifconfig
问题：单选题Which of the following commands should be used to set network attributes on a currently running kernel？（）AnoBchdevCvmtuneDschedtune
问题：单选题Which tool is based on the AIX trace facility？（）AnoBnetpmonCentstatDnfso
问题：单选题A TCP/IP application is transferring files from a personal machine to a remote machine. The application writes 32 kilobytes of data at a time to the socket， but has not issued a system call to set the window size. Which of the following procedures should be performed on the personal machine to increase the throughput of the application？（）AIncrease the size of thewallBIncrease the size of sb_maxCIncrease the size of tcp_recvspaceDIncrease the size of tcp_sendspace
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？（）Avmtune -MBsvmon -mCvmstat -sDschedtune -m
问题：单选题An AIX system， which is running a database， is having performance issues with I/O writing. The DBA has provided numbers for the HIGH and LOW watermarks for pending file writes， which will optimize the system for best performance. To set these numbers， which of the following commands would be used？（）Aperfmon -h 30 -l 25BchdevCno -oDsmit chgsys
问题：单选题Which of the following is true about rmss？（）Armss is a part of performance toolbox and stands for Reduced Memory System SimulatorBrmss is a part of perfpmr and stands for Real Memory System SimulatorCrmss is part of the standard bos.perf filesets and stands for Redundant Memory System SimulatorDrmss is part of WLM and stands for Real Memory System Simulator
问题：单选题All of the following comprise the Performance Toolbox EXCEPT：（）AperfmgrBperfagent.serverCperfagent.toolsDperfagent.client
问题：单选题Service Level Agreements （SLA） typically do not address（）ANetwork access and availabilityBApplication access and availabilityCEscalation and conflict resolutionDHeadcounts and budgets
问题：单选题A TCP/IP application receives files from a remote machine. The application reads 32 kilobytes of data at a time to the socket， but has not issued a system call to set the window size. Which of the following procedures should be performed on the personal machine to increase the throughput of the application？（）AIncrease the size of thewallBIncrease the size of sb_maxCIncrease the size of tcp_recvspaceDIncrease the size of tcp_sendspace
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 commands is used to display detailed ethernet statistics for ent0？（）Aifconfig ent0Bentstat -d ent0Cnetstat -iDlscfg -vl ent0
问题：单选题Which of the following performance tools will work with optimized code and also provides source statement profiling？（）AprofBgprofCkprofDtprof
