AWS Certified SysOps Administrator – Associate (legacy) — Question 163

You have a server with a 5O0GB Amazon EBS data volume. The volume is 80% full. You need to back up the volume at regular intervals and be able to re-create the volume in a new Availability Zone in the shortest time possible. All applications using the volume can be paused for a period of a few minutes with no discernible user impact.
Which of the following backup methods will best fulfill your requirements?

Answer options

• A. Take periodic snapshots of the EBS volume
• B. Use a third party Incremental backup application to back up to Amazon Glacier
• C. Periodically back up all data to a single compressed archive and archive to Amazon S3 using a parallelized multi-part upload
• D. Create another EBS volume in the second Availability Zone attach it to the Amazon EC2 instance, and use a disk manager to mirror me two disks

Correct answer: A

Explanation

Taking periodic snapshots of the EBS volume is the most efficient method as it allows for quick recovery and can be done without impacting the applications significantly. The other options either involve longer recovery times, additional complexity, or rely on third-party tools that may not provide the same level of integration and speed as EBS snapshots.