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When an EC2 EBS-backed (EBS root) instance is stopped, what happens to the data on any
ephemeral store volumes?

Data is automatically saved in an EBS volume.

Data is unavailable until the instance is restarted.

Data will be deleted and will no longer be accessible.

Data is automatically saved as an EBS snapshot.

An “EBS-backed” instance is an EC2 instance which uses an EBS volume as it’s root device.
An EBS volume behaves like a raw, unformatted, external block device that you can attach to
a single instance and are not physically attached to the Instance host computer (more like a
network attached storage). The volume persists independently from the running life of an
instance. After an EBS volume is attached to an instance, you can use it like any other
physical hard drive. You can also detach an EBS volume from one instance and attach it to
another instance. EBS volumes can also be created as encrypted volumes using the Amazon
EBS encryption feature.

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