单项选择题
You work as a database administrator for Certkiller .com. You have been asked to use a centralized administrative tool to administer your database servers and application servers. In order to achieve the objective， which component would you configure on each database server？（）
A.Database Control B.Management Server C.Management Repository D.Application Server Control E.Oracle Management Agent
多项选择题 YourbossatCertkiller.comwantsyoutoclarifyOracle10g.WhichtwostepsareperformedthefirsttimeanyUPDATEstatementisissuedaftertheinstanceisstarted？（）
单项选择题 Youexecutedthefollowingcommandtobackupthecontrolfile：ALTERDATABASEBACKUPCONTROLFILETOTRACE；Whatdoyoufindinthetracefile？（）
