Which Oracle background process is responsible for providing information about the instance name associated with the service handlers and services to the listener？（）

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

单项选择题Whichoneofthefollowingparametersmustbespecifiedwhenexportingobjectsthathasintegrityconstraintsreferencingobjectsthatarecurrentlybeingaccessedbyotherusers？（）

A.IGNORE=Y
B.DIRECT=Y
C.CONSISTENT=Y
D.BUFFER=Y

单项选择题Whichofthefollowingrolesprovidestheprivilegestomaintainandquerytherecoverycatalogschema？（）

A.EXECUTE_CATALOG_ROLE
B.CONNECT
C.RESOURCE
D.RECOVERY_CATALOG_OWNER
E.RECOVERY_CATALOG_USER