AWS Certified SysOps Administrator Practice Exam

What is the best solution to decouple a database from an Elastic Beanstalk environment while avoiding downtime?

1. Create a new Elastic Beanstalk environment with a separate database

2. Utilize Elastic Beanstalk blue/green deployment

3. Clone the existing environment and change the database connection

4. Use an S3 bucket to store database information

The correct answer is: Utilize Elastic Beanstalk blue/green deployment

Utilizing Elastic Beanstalk's blue/green deployment strategy is indeed an effective approach to decouple a database from an Elastic Beanstalk environment while minimizing downtime. This method creates a new version of the application in a separate environment, effectively allowing for testing and validation of changes without impacting the current, live environment. With blue/green deployments, you can create a new environment (the green environment) where you can adjust your application settings and modify the database connection. After confirming that the new environment is functioning as expected, you can switch traffic from the old environment (the blue environment) to the new one. This transition can be done quickly, ensuring that users experience little to no downtime. This method also allows you to easily roll back to the previous environment if there are issues, providing an additional layer of safety when making significant architectural changes like decoupling a database. The other options present challenges that could lead to downtime or complications. For example, creating a new Elastic Beanstalk environment with a separate database would require a migration process, which could lead to disruptions. Cloning the existing environment may not effectively change the database connection without significant configuration and could also lead to transient states where the application is still dependent on the original database. Lastly