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View the Exhibit and examine the output.  Which two statements are true regarding the LISTENER2 listener（）
A:The ORCL instance is registered dynamically with the listener.
B:The ORCL instance is registered statically in the listener.ora file.
C:The number of current client connections handled by the service handler is two.
D:The total number of client connections handled so far by the service handler is two

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出自：Oracle认证

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