单项选择题
A. Increase the number of CPUs.
B. Increase the physical memory.
C. Set the PSALLOC environment variable to ’late’.
D. Set the PSALLOC environment variable to ’early’.
单项选择题 ATCP/IPapplicationistransferringfilesfromapersonalmachinetoaremotemachine.Theapplicationwrites32kilobytesofdataatatimetothesocket，buthasnotissuedasystemcalltosetthewindowsize.Whichofthefollowingproceduresshouldbeperformedonthepersonalmachinetoincreasethethroughputoftheapplication？（）
单项选择题 AnAIXsystemadministratorneedstoadjustthemaximumamountofmemorythatcanbepinned.Whichofthefollowingcommandsisusedtomakethechange？（）
单项选择题 WhichofthefollowingRAIDlevelsprovidethebestperformanceforasystemwheretherearemostlywritesoccurring？（）