单项选择题
A. /etc/hosts on server 192.9.201.2
B. /etc/hosts on the local system
C. /etc/named.rev on 192.9.201.1
D. /etc/netsvc.conf on the NIS server
单项选择题 AnAIXsystem，whichisrunningadatabase，ishavingperformanceissueswithI/Owriting.TheDBAhasprovidednumbersfortheHIGHandLOWwatermarksforpendingfilewrites，whichwilloptimizethesystemforbestperformance.Tosetthesenumbers，whichofthefollowingcommandswouldbeused？（）
单项选择题 Inordertoensurebestreadperformance，whichofthefollowingindicateshowlargeanapplication’sreadbuffersizeshouldbeifthefilesystemtobereadisstripedacrossNdisksusingLVMstriping？（）
单项选择题 ATCP/IPapplicationreceivesfilesfromaremotemachine.Theapplicationreads32kilobytesofdataatatimetothesocket，buthasnotissuedasystemcalltosetthewindowsize.Whichofthefollowingproceduresshouldbeperformedonthepersonalmachinetoincreasethethroughputoftheapplication？（）