单项选择题
A.recovery catalog
B.Oracle Enterprise Manager Repository
C.Automatic Workload Repository （AWR）
D.Oracle 10g Enterprise Manager Grid Control
E.Automatic Database Diagnostic Monitor （ADDM）
单项选择题 Thewarningandcriticalthresholdvalueshavebeensetto85%and97%，respectively，foroneofthetablespaces.Thecurrenttablespacespaceusageis54%.Youmodifythewarningthresholdtobe50%andcriticalthresholdtobe53%inDatabaseControl.Whichstatementistrue？（）
多项选择题 Intheparameterfileofyourproductiondatabase，theFAST_START_MTTR_TARGETparameteris setto300tooptimizeinstancerecovery.Whileobservingtheperformanceofthedatabaseduringinstancerecovery，youfindthattheredologfilesarenotsizedproperlytosupportthisactivity.Whichtwosourcescouldyouusetodeterminetheoptimalsizeoftheredologfiles？（）
多项选择题 YourproductiondatabaseisrunningintheARCHIVELOGmodeandtheARCnprocessisfunctional.Youhavetwoonlineredologgroups.Whichthreebackgroundprocesseswouldbeinvolvedwhenalogswitchhappens？（）