フリー問題

問題文

An administrator lists the data directory of a running server and finds one subdirectory for every schema. With the default settings in place, what do those subdirectories hold for the InnoDB tables of the schema?

選択肢

1. Those subdirectories hold the shared dictionary sections that the storage engine created for the schema.
2. Those subdirectories hold the compiled format descriptions that the storage engine created for the schema.
3. Those subdirectories hold the individual tablespace files that the storage engine created for the schema.
4. Those subdirectories hold the numbered undo containers that the storage engine created for the schema.