单项选择题
A. schedtune
B. rmss
C. rmps
D. vmtune
单项选择题 Afterissuingthenfsstat-rscommand，thenullreceivedcolumnstartstogrow.Thisindicateswhichofthefollowingconditions？（）
单项选择题 Whichofthefollowingistrueaboutrmss？（）
单项选择题 Asystemadministratorincreasesthembufpoolallocation，thenrunsvmstat.Itisnoticedthatthepagingratehasnotdecreased.Whatisthemosteffectiveoptiontomaintainthembufpoolanddecreasepaging？（）