Which two statements are true about Oracle network connections? (Choose two.)
Which two statements are true about Oracle network connections? (Choose two.)
A server process checks a user’s authentication credentials and creates a session if the credentials are valid. This statement accurately describes the role of a server process in verifying user credentials and establishing a session. A connection request from a client is always first received by a listener running on the port that is used for the connection request for the database server. This statement is true as in Oracle network architecture, the listener is the initial point of contact for client connection requests.
Connecting to database with sqlplus locally does not need listener at all, so I think AB is correct.
Option E mentions a client, not local connection: A connection request from a client
One listener can be used by multiple databases