フリー問題

問題文

A team is writing the CREATE DATABASE statement for a new database that will host several isolated applications as pluggable databases. They ask what that statement settles once and for all. Which statement describes the effect correctly?

選択肢

1. The statement decides the character set of every pluggable database separately, and the root container is built later by the first administrator who plugs an existing database into that container database.
2. The statement decides how many pluggable databases the container database will ever hold, and the seed container is built later by the first administrator who connects to the root of that container database.
3. The statement decides which service names the listener will publish, and the seed container is built by the first backup that the administrator takes after opening that container database.
4. The statement decides that the database is a container database, and it also builds the seed container that later serves as the template for new pluggable databases.