Free 1Z0-060 Sample Question 4
Which statement is true about Oracle Net Listener?
A. It acts as the listening endpoint for the Oracle database instance for all local and non-local user connections.
B. A single listener can service only one database instance and multiple remote client connections.
C. Service registration with the listener is performed by the process monitor (PMON) process of each database instance.
D. The listener.ora configuration file must be configured with one or more listening protocol addresses to allow remote users to connect to a database instance.
E. The listener.ora configuration file must be located in the ORACLE_HOME/network/admin directly.
Correct Answer: C
Supported services, that is, the services to which the listener forwards client requests, can be configured in the listener.ora file or this information can be
dynamically registered with the listener. This dynamic registration feature is called service registration. The registration is performed by the PMON process--an
instance background process--of each database instance that has the necessary configuration in the database initialization parameter file. Dynamic service registration does not require any configuration in the listener.ora file.
Not B: Service registration reduces the need for the SID_LIST_listener_name parameter setting, which specifies information about the databases served by the
listener, in the listener.ora file.
* Oracle Net Listener is a separate process that runs on the database server computer. It receives incoming client connection requests and manages the traffic of
these requests to the database server.
* A remote listener is a listener residing on one computer that redirects connections to a database instance on another computer. Remote listeners are typically used in an Oracle Real Application Clusters (Oracle RAC) environment. You can configure registration to remote listeners, such as in the case of Oracle RAC, for dedicated server or shared server environments.