You are working as an AWS consultant on a government project. A local data center needs to be migrated to AWS, and EBS volumes are attached to EC2 instances as the primary storage devices.
The stored data is very sensitive. If EBS volumes are deleted, data in EBS volumes should be completed wiped out before reuse.
Which action would you need to take to address the concern?

Answer options:

A.AWS does not guarantee that the data is completely cleaned for reuse. It is suggested to use the Elastic File System (EFS) to wipe the data after the disk is deleted automatically.
B.It is the customers` responsibility to wipe out the data before deleting the EBS volumes. Tools like “shred” can be used to wipe files and partitions.
C.No actions are required as AWS wipes the data of EBS volumes before the volumes are available for reuse.
D.AWS does not ensure that the files are deleted after the volumes are removed. It is suggested to use S3 to store a large amount of data instead of EBS volumes.

Answer: C
Option A is incorrect because AWS users are assured that the data is wiped before reuse. It is not required to replace EBS with EFS.
Option B is incorrect because, on Volume deletion, AWS ensures it wipes away all the data before being made available. Customers are still encouraged to delete the data from their EBS storage before deleting those volumes.
Option C is CORRECT because no actions are required from the customer side when EBS volumes have been deleted from their end. Before making those EBS volumes reusable/available to other customers, AWS clears the EBS volumes.
Option D is incorrect because S3 provides Object storage, whereas EBS is block storage attached to a VM. We cannot alter the storage type usage because of the data deletion solution.
Reference:
https://d1.awsstatic.com/whitepapers/Security/Security_Compute_Services_Whitepaper.pdf.