多项选择题
A.http：//145.33.230.186：5500/em
B.http：//www.145.33.230.186：5500/em
C.http：//tech1.us.oracle.com：5500/em
D.http：//test.145.33.230.186：5500/em
E.http：//test.tech1.us.oracle.com：5500
F.http：//www.tech1.us.oracle.com：5500/em
G.http：//test.tech1.us.oracle.com：5500/em
单项选择题 You find today’s performance of your production database to be the best ever. Therefore， you want to be notified in the future whenever the performance degrades by 10% of today’s performance. What is the first step that you would take to ensure this？（）
多项选择题 Yourapplicationdemandsfrequentconnectionanddisconnectionfromthedatabase.YouhavethreelistenerprocessesthatarelisteningforthedatabasePROD.WhilesettinguptheconnectstringusingOracleEnterpriseManager10gDatabaseControl，whichtwooptionswouldyouselecttobalancetheconnectionloadacrossallthelistenerprocesses？（）
单项选择题 Redologfilesaremultiplexedinyourdatabase.Thediskinwhichyouhaveoneoftheredologmembersishighlyfragmented.Intheprocessofdefragmentationyoulosetheredologmember，whichisnotamemberofthecurrentgroup.Howwouldyourecoverfromthelossoftheredologmember？（）