单项选择题The three tasks shown have been completed in order to configure a naming method: Task 1: Installed on server and client: Oracle Net Services, TCP IP, TCP IP protocol adaptor Task 2: Started default listener on port 1521 Task 3: Added global database name to the listener.ora file. Which naming method was configured?()
A.host naming method
B.local naming method
C.directory naming method
D.external naming method