单项选择题
A. Oracle Net Manager
B. Listener Control utility
C. Database Configuration Assistant
D. Oracle Net Configuration Assistant
多项选择题 Which three statements must be true before transporting a tablespace from a database on one platform to a database on another platform?（）
多项选择题 Which two statements are true about encrypting RMAN backup?（）
单项选择题 Which option is best practice for creating a recovery catalog owner in the catalog database?（）