Correct Answer: A, C, DTo encrypt data at rest on an EBS data volume, attached to an EC2 instance, you have several options. First, you can implement third-party volume encryption tools to encrypt your data. Second, you can encrypt data inside your applications before storing it on the EBS volume, ensuring that the data is encrypted before it even reaches the storage medium. Lastly, you can use native data encryption drivers at the file system level to encrypt the data as it is written to and read from the EBS volume. Implementing SSL/TLS is not suitable for data at rest as it is meant for encrypting data in transit, and EBS volumes are not encrypted by default.