You connected to the database using the following connection string: CONNECT hr/hr@test.us.oracle.com:1521/mydb <br /> Which three statements are correct regarding the connection string?()<p> You connected to the database using the following connection string: CONNECT hr/hr@test.us.oracle.com:1521/mydb <br /> Which three statements are correct regarding the connection string?()</p>
A、A.mydb is a service name.
B、B.test.us.oracle.com is a database name.
C、C.1521 is the listener port number.
D、D.mydb is a host name.
E、E.test.us.oracle.com is a net service name.
F、F.hr is a username.
H、G.test.us.oracle.com is an instance name.