Your customer wishes to deploy an enterprise application to AWS, which will consist of several
web servers, several application servers, and a small (50GB) Oracle database. Information is
stored both in the database and the filesystems of the various servers. The backup system must
support database recovery, whole server and whole disk restores, and individual file restores with
a recovery time of no more than two hours.
They have chosen to use RDS Oracle as the database.
Which backup architecture will meet these requirements?

A.
Backup RDS using automated daily DB backups.
Backup the EC2 Instances using AMIs, and supplement with file-level backup to S3 using
traditional enterprise backup software to provide file level restore.

B.
Backup RDS database to S3 using Oracle RMAN.
Backup the EC2 instances using AMIs, and supplement with EBS snapshots for individual volume
restore.

C.
Backup RDS using a Multi-AZ Deployment.
Backup the EC2 instances using AMIs, and supplement by copying filesystem data to S3 to
provide file level restore.

D.
Backup RDS using automated daily DB backups.
Backup the EC2 instances using EBS snapshots, and supplement with file-level backups to
Amazon Glacier using traditional enterprise backup software to provide file level restore.

Explanation:
You need to use enterprise backup software to provide file level restore. See
https://d0.awsstatic.com/whitepapers/Backup_and_Recovery_Approaches_Using_AWS.pdf
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If your existing backup software does not natively support the AWS cloud, you can use AWS
storage gateway products. AWS Storage Gateway is a virtual appliance that provides seamless
and secure integration between your data center and the AWS storage infrastructure.