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Which three information are to be mandatorily provided while creating a new listener using Enterprise Manager Database Control?

  1. The database services to be registered with the listener

  2. The log file and trace file destination for the listener.

  3. The protocol used by the listener

  4. The server name where the listener runs.

  5. The port used by the listener.
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C,D,E Correct answer
Explanation

When creating a new listener through Enterprise Manager, you must specify: the protocol (TCP, TCPS, etc.), the server/hostname where the listener runs, and the port number it listens on. Database services register dynamically with the listener. Log and trace file locations use default values or are configured later. These three parameters are the minimum required for listener creation and basic operation.

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