The Post Show Visually How-to Create and Start a Listener on Oracle 11g R2 by the Oracle Net Configuration Assistant.
And the Process of Getting Started on Oracle 11g Database Involve Several Steps Necessaries to Run the Database and Creating and Starting a Listener is Prerequisite to Successfully Starting the Database.
Finally, the Screenshots of the Steps Involved are Inserted here to shows you Visually the process.

Create and Start a Listener on Oracle 11g with Network Configuration Assistant
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Here is the Link 2 How-to Create & Start a Database on Oracle 11g:
Oracle 11g Create Database
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