Under the AWS shared responsibility model, which of the following activities are the customer’s responsibility? (Choose two.)

Under the AWS shared responsibility model, which of the following activities are the customer’s responsibility? (Choose two.)
A . Patching operating system components for Amazon Relational Database Server (Amazon RDS)
B . Encrypting data on the client-side
C . Training the data center staff
D . Configuring Network Access Control Lists (ACL)
E . Maintaining environmental controls within a data center

Answer: BD

Explanation:

Reference: https://aws.amazon.com/compliance/shared-responsibility-model/