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