You are configuring the listener on your server. Which listener.ora parameter contains the information needed to detect session requests from different client types？（）

单项选择题Whichserverstackcommunicationlayercorrespondstotheclientapplicationlayerinadistributedenvironment？（）

A.RDBMS
B.Application
C.Oracle Net foundation
D.Network Protocol
E.Presentation

单项选择题Whichofthefollowingoptionswouldyouchoosetoimplementcontrolledaccessusingremoteauthenticationforyournetworks？（）

A.OiD
B.RADIUS
C.Wallet Manager
D.Oracle Names Server

单项选择题WhichoneofthefollowingfilescontainsrecordsthatdonotmeetthespecifiedloadcriteriaintheSQL*Loadercontrolfile？（）

A.Log file
B.Discard file
C.Parameter file
D.Bad file

单项选择题IfyouCROSSCHECKthebackuppiecethatwaspreviouslymarkedasEXPIREDbutisnowavailable，whatwouldthestatusofthisbackuppiecebeintheRMANrepository？（）

A.EXPIRED
B.AVAILABLE
C.UNAVAILABLE
D.ACCESSIBLE

单项选择题Asaresultofamediafailure，thecurrentonlineredologgroupiscorrupted.Thedatabasecrashes，asthecurrentonlinegroupisinaccessible.Whichtypeofincompleterecoveryareyoumostlikelytoperform？（）

A.Cancel-based
B.Recovery using a backup control file
C.Time-based
D.Change-based