Which one of the following files includes the parameter NAMES.DIRECTORY_PATH（hostname）？（）

单项选择题Youareconfiguringthelisteneronyourserver.Whichlistener.oraparametercontainstheinformationneededtodetectsessionrequestsfromdifferentclienttypes？（）

A.ADDRESS_LIST
B.SID_NAME
C.LISTENER
D.SERVICE_LIST

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