Use S3 SSE-KMS to encrypt the objects. 11. An organization wants to deploy a three-tier web application whereby the application servers run on Amazon EC2 instances. These EC2 instances need access to credentials that they will use to authenticate their AWS Dumps SQL connections to an Amazon RDS DB instance. Also, AWS Lambda AWS Dumps functions must issue queries to the RDS database by using the same database credentials. The credentials must be stored so that the EC2 instances and the Lambda functions can access them. No other access is allowed.