单项选择题

WhichstatementistrueregardingDynamicServiceRegistration……

Which statement is true regarding Dynamic Service Registration？（）

A.Dynamic service registration requires configuration in the listener .ora file.
B.Dynamic service registration can be used only with an Oracle9/instance.
C.Dynamic service registration cannot register a local listener that does not use TCP/IP or port 1521.
D.The PMON background process automatically registers each database instance if the necessary parameters have been set in the database initialization parameter file.

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