You are not sure if Flashback Database is enabled. What database column and view can you query to see if the flashback logs are being created in the flash recovery area?

Answer: D

Explanation: To enable Flashback Database, you use the command ALTER DATABASE FLASHBACK ON. Your database must be in ARCHIVELOG mode, you must have the flash recovery area configured, and you must have DB_FLASHBACK_RETENTION_TARGET set to an appropriate value. A, B, and C are incorrect because they all specify columns that do not exist.