Protecting Data at Rest on EBS Volumes

Answer - A, C,and D.

You can encrypt the data at rest by either using native data encryption, using a third-party encrypting tool or just encrypt the data before storing it on the volume.

Option A CORRECT because it uses a third-party volume encryption tool.

Option B is incorrect because EBS volumes are not encrypted by default.

Option C is CORRECT as it encrypts the data before storing it on EBS.

Option D is CORRECT as it uses native data encryption.

Option E is incorrect as SSL/TLS is used to secure the data in transit, not at rest.

The correct answer is A. Implement third party volume encryption tools.

Explanation:

Option A is the most appropriate answer for this question. It suggests using third-party volume encryption tools to encrypt sensitive data at rest. There are several third-party encryption tools that can be used to encrypt data at rest, such as BitLocker, VeraCrypt, and dm-crypt.

Option B is incorrect because EBS volumes are not encrypted by default. While it is true that EBS volumes can be encrypted using AWS KMS or other encryption options, this is not the default behavior.

Option C is also incorrect because it suggests encrypting data inside the application before storing it on EBS. While this is a viable option, it is not the most efficient or effective way to encrypt data at rest.

Option D is incorrect because it suggests using native data encryption drivers at the file system level. While this is a possible solution, it is not the most practical one, as it requires significant expertise in file system encryption.

Option E is also incorrect because it suggests implementing SSL/TLS for all services running on the server. While SSL/TLS can be used to encrypt data in transit, it does not provide protection for data at rest.

In conclusion, the most appropriate solution for encrypting sensitive data at rest on an EBS data volume attached to an EC2 instance is to implement third-party volume encryption tools.