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單項(xiàng)選擇題

You are maintaining the database of a company. The listener process, listener1, is configured for remote access. You have issued the following command:  
LSNRCTL>STATUS listener1  
Which information will NOT be displayed when you issue the above command?() 

A. whether the password is set in the listener or a file or not
B. the number of client connections the service handler has refused
C. the information will be displayed whether the instance can accept connections or not
D. the protocol addresses on which the listener is configured to listen

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