How can AWS RDS encryption be enabled?

AWS RDS encryption can be enabled using various methods including the AWS Command Line Interface (CLI), the AWS RDS API, and AWS CloudFormation. This flexibility allows developers and system administrators to integrate the enabling of encryption into their automated scripts or infrastructure as code practices, enhancing both efficiency and security.

Using the AWS CLI or API allows for granular control over resources, making it easy to manage database instances programmatically. Additionally, with CloudFormation, users can define their infrastructure in a declarative manner, including encryption configurations, and provision them consistently and repeatedly.

The other options are limited in scope. For example, enabling encryption solely through the AWS Management Console restricts users to a manual process, which may not be suitable for larger deployments or continuous integration/continuous deployment (CI/CD) scenarios. While it's true that encryption must be enabled at the moment of database creation, it doesn't restrict it to only that method; thus, using CloudFormation or other programmatic approaches offers more versatility. Lastly, leveraging third-party encryption tools is unnecessary and could introduce complexity since AWS provides built-in capabilities for encryption that integrate seamlessly into RDS.