单项选择题
A.RDBMS
B.Application
C.Oracle Net foundation
D.Network Protocol
E.Presentation
单项选择题 Whichofthefollowingoptionswouldyouchoosetoimplementcontrolledaccessusingremoteauthenticationforyournetworks？（）
单项选择题 WhichoneofthefollowingfilescontainsrecordsthatdonotmeetthespecifiedloadcriteriaintheSQL*Loadercontrolfile？（）
单项选择题 IfyouCROSSCHECKthebackuppiecethatwaspreviouslymarkedasEXPIREDbutisnowavailable，whatwouldthestatusofthisbackuppiecebeintheRMANrepository？（）