Oracle Exam 1Z0-931 Topic 3 Question 6 Discussion

In Autonomous Database, Oracle encrypt your data everywhere---whether in motion in SQL'Net traffic, and at rest in tablespaces and backups

by default, each Autonomous Database service is automatically configured to use industry-standard TLS 1.2 to encrypt data in transit between the database service and clients or applications. Required client certificates and networking information are automatically packaged for the service consumer when the service is provisioned

Oracle encrypt data at rest, by default the Autonomous Database is automatically encrypted using Oracle Transparent Data Encryption in tablespaces and backups

https://www.oracle.com/database/technologies/datawarehouse-bigdata/adb-faqs.html#SECURITY-BOOKMARK

https://docs.oracle.com/en/cloud/paas/atp-cloud/atpug/database-links.html#GUID-28F06977-300F-4599-AD97-2DEF67EF5FEA