Which two statements are true about DB Systems in OCI?

The statement regarding customers being able to manage the Transparent Data Encryption (TDE) Wallet after DB Systems are provisioned is accurate because one of the features of Oracle Cloud Infrastructure (OCI) Database Systems is that they allow users to handle and configure security settings post-provisioning, including managing the TDE Wallet. The TDE Wallet is essential for securing the encryption keys and managing the encryption of sensitive data within the database.

This level of control is crucial since it provides flexibility in maintaining data security policies and compliance requirements according to organizational needs. Customers are able to perform operations such as unlocking the wallet for access or updating it with new encryption keys, thereby ensuring that they maintain oversight and control over their database encryption settings.

In contrast, other statements do not align with the features and capabilities offered in OCI DB Systems. For instance, although it may seem that database patch management is entirely under Oracle's control, customers generally have options to apply patches per their maintenance schedules in many cases. The option to consolidate multiple database homes on a single VM database host is also limited by the architecture of the database service, which typically encourages separation for optimal performance. Lastly, while OCI does offer encryption by default for data at rest, the specifics about backups may vary based on