Your database instance is running. db01 is a net service name. You issue a connection request by
using the command:
SQL> CONNECT scott/tiger@db01
Which component receives the request and establishes the appropriate connection?
A.
listener
B.
user process
C.
service name
D.
server process
Explanation:
http://docs.oracle.com/cd/E11882_01/network.112/e41945/trouble.htm#NETAG394
A