Anyone who knows just the host name and the listener name can have full control over the listener. They can stop the listener and also obtain detailed information about the listener， database， and the configuration of the application. How would you avoid this scenario？（）
A: lock the listener
B: hide the listener
C: create multiple listeners
D: run listener on a remote client
E: set a password for the listener
F: store listener.ora in a non-default location
A: lock the listener
B: hide the listener
C: create multiple listeners
D: run listener on a remote client
E: set a password for the listener
F: store listener.ora in a non-default location
举一反三
- Anyone who knows just the host name and the listener name can have full control over the listener. They can stop the listener and also obtain detailed information about the listener， database， and the configuration of the application. How would you avoid this scenario？（） A: lock the listener B: hide the listener C: create multiple listeners D: run listener on a remote client E: set a password for the listener F: store listener.ora in a non-default locatio
- Which statements of the event listener are true A: Multiple listeners can be attached to one component. B: Only one listener can be attached to one component. C: One listener can receive and process the events from multiple components. D: One listener can receive and process the events from only one component.
- Which statements are true regarding listeners（） A: Listeners use only the TCP/IP protocol. B: Multiple listener processes can run simultaneously on a host. C: Multiple database instances can be registered with a single listener. D: The listener-related errors can be traced only at the administrative level. E: Only one database instance can be registered with a single listener at any time
- You issue these LSNRCTL commands： LSNRCTL> SET CURRENT_LISTENER listener01 LSNRCTL> START listener02 What is the result of issuing these commands？（） A: A listener named LISTENER is started. B: A listener named LISTENER01 is started. C: A listener named LISTENER02 is started. D: The START command fails and no listener is started.
- Context of communication concerns several factors, including _____. () A: who is your listener B: what is your relationship with the listener C: what is the distance between you and the listener D: how you want to present yourself