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You work as a database administrator for Certkiller .com. When you tried to connect to the database， you received the following error： ERROR：  ORA-12541：TNS：no_listener  You found that the listener is not running on the server， so you issued the following command in the Listener Control utility to start the listener.  lsnrctl>START  What statement is true？（）
A:It would attempt to start the default listener
B:It would start the most recently created listener.
C:It would display an error with a message asking for the listener name to be specified.
D:It would show you a list of listeners and prompts for the listener name that you want to start.

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出自：Oracle认证

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