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An application currently stores all its data on Amazon EBS Volumes. All EBS volumes must be backed up durably across multiple Availability Zones.What is the MOST resilient way to backup the volumes?
A. Take regular EBS snapshots.
B. Enable EBS volume encryption.
C. Create a script to copy data to an EC2 Instance store.
D. Mirror data across 2 EBS volumes.

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Answer:

A. Take regular EBS snapshots .

Explanation:

-[tex]B[/tex] is incorrect. It lacks durability of EBS volumes.

-[tex]C[/tex] is incorrect. ECT Instance stores are not durable.

-[tex]D[/tex] is incorrect. Mirroring across EBS volumes is pargely inefficient.

-Since EBS snapshots only saves snapshots of the most recent device changes, a great deal of time and memory is saved. Also, only data unique to any particular snapshot is removed in cases of deletion.

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