Which three pieces of information are to be manatorily provided while creating a new listener using Enterprise Manager database Control? (Choose three).
A. The port used by the listener.
B. The protocol used by the listener.
C. The server name where the listener runs.
D. The log file and trace file destination for the listener.
E. The database services to be registered with the listener.
---em怎么创建监听在哪里？
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ABE
A. The port used by the listener.
B. The protocol used by the listener.
E. The database services to be registered with the listener.