If you CROSSCHECK the backup piece that was previously marked as EXPIRED but is now available， what would the status of this backup piece be in the RMAN repository？（）

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

单项选择题WhichOraclebackgroundprocessisresponsibleforprovidinginformationabouttheinstancenameassociatedwiththeservicehandlersandservicestothelistener？（）

A.PMON
B.SMON
C.LGWR
D.CKRT

单项选择题Whichofthefollowingoptionsenablesausertogetauthenticatedthoughasinglepasswordinsteadofusingmultiplepasswords？（）

A.Wallet Manager
B.Radius
C.Oracle Internet Directory
D.None of the above

单项选择题Whichofthefollowingrolesmustbegrantedtoausertoperformafulldatabaseimport？（）

A.CONNECT
B.IMP_FULL_DATABASE
C.FULL_EXPORT_PRIVS
D.RESOURCE
E.FULL_IMPORT_PRIVS

单项选择题WhichparameterallowsSQL*Loadertoloaddataintoatablewiththeindexesintheunusablestate，priortotheloadoperation？（）

A.INDEXES
B.SKIP_INDEXES_MAINTENANCE
C.SKIP_UNUSABLE_INDEXES
D.RESUMABLE
E.INDEXES_UNUSABLE