多项选择题
A.Listeners use only the TCP/IP protocol.
B.Multiple listener processes can run simultaneously on a host.
C.Multiple database instances can be registered with a single listener.
D.The listener-related errors can be traced only at the administrative level.
E.Only one database instance can be registered with a single listener at any time
多项选择题 You are managing an Oracle Database 11g database. You configured the database to run in ARCHIVELOGmode. Which two statements are true in this scenario（）
多项选择题 WhichstatementsaretrueaboutlogicalstructuresoftheOracledatabase（）
多项选择题 Whichstatementsregardingtheserverparameterfile（SPFILE）aretrue（）