单项选择题
A.The data file cannot be recovered.
B.The date file can be restored from theSYSTEMauto backup.
C.Take thetablespaceoffline，drop，kand re-create it.
D.Recovery Manager （RMAN） is used to recover the data file.
E.The ALTER DATABSE CREATE DATAFILE..commandis used to recover the data file.
单项选择题 YouworkasadatabaseadministratorforCertkiller.com.Youhavebeenaskedtouseacentralizedadministrativetooltoadministeryourdatabaseserversandapplicationservers.Inordertoachievetheobjective，whichcomponentwouldyouconfigureoneachdatabaseserver？（）
多项选择题 YourbossatCertkiller.comwantsyoutoclarifyOracle10g.WhichtwostepsareperformedthefirsttimeanyUPDATEstatementisissuedaftertheinstanceisstarted？（）
单项选择题 Youexecutedthefollowingcommandtobackupthecontrolfile：ALTERDATABASEBACKUPCONTROLFILETOTRACE；Whatdoyoufindinthetracefile？（）