How can the user achieve data encryption with a snapshot?

A user is planning to schedule a backup for an EBS volume. The user wants security of the snapshot data.

How can the user achieve data encryption with a snapshot?
A . Use encrypted EBS volumes so that the snapshot will be encrypted by AWS
B . While creating a snapshot select the snapshot with encryption
C . By default, the snapshot is encrypted by AWS
D . Enable server side encryption for the snapshot using S3

Answer: A

Explanation:

AWS EBS supports encryption of the volume. It also supports creating volumes from existing snapshots provided the snapshots are created from encrypted volumes. The data at rest, the I/O as well as all the snapshots of the encrypted EBS will also be encrypted. EBS encryption is based on the AES-256 cryptographic algorithm, which is the industry standard.