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？（）

单项选择题WhichofthefollowingRAIDlevelsprovidethebestperformanceforasystemwheretherearemostlywritesoccurring？（）

A. RAID 0
B. RAID 1
C. RAID 3
D. RAID 5

单项选择题IfpercentageofRAMoccupiedbyfilepagesfallsbelowminperm，pagereplacementalgorithmstealspagesfrom（）

A. file pages only.
B. computational pages only.
C. either file or computational pages.
D. working segment only.

单项选择题Whichofthefollowingperformancetoolswillworkwithoptimizedcodeandalsoprovidessourcestatementprofiling？（）

A. prof
B. gprof
C. kprof
D. tprof

单项选择题WhichofthefollowingoptionswouldbesthelptoreducepacketfragmentationforaTCPapplicationtransferringlargeamountsofdatabetweenserversacrossapathofmultiplenetworks？（）

A. Adjust Path MTU attributes， using the no command.
B. Adjust the status queue size on the adapters， using the chdev command.
C. Adjust ipforwarding to enabled， using the no command.
D. Adjust tcp_maxburst to enabled， using the no command.

单项选择题Whensettingupschedulesandenforcingschedulingofdifferenttypesofworkloads，whichofthefollowingarecriticalperformanceissues？（）

A. Disk fragmentation
B. Performance results analysis
C. Capacity forecasting and planning
D. Resource contention and availability