A user has launched an EC2 instance from an instance store backed AMI. If the user restarts the instance, what
will happen to the ephermal storage data?
A.
All the data will be erased but the ephermal storage will stay connected
B.
All data will be erased and the ephermal storage is released
C.
It is not possible to restart an instance launched from an instance store backed AMI
D.
The data is preserved
Explanation:
A user can reboot an EC2 instance using the AWS console, the Amazon EC2 CLI or the Amazon EC2 API.
Rebooting an instance is equivalent to rebooting an operating system. However, it is recommended that the
user use Amazon EC2 to reboot the instance instead of running the operating system reboot command fromthe instance. When an instance launched from an instance store backed AMI is rebooted all the ephermal
storage data is still preserved.
This questions is wrong.
If the user “restarts” the instance –> X
If the user “reboot” the instance –> O
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D. Just launch an instance store EC2 instance and give it a reboot. Data is preserved.
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D
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The data in an instance store persists only during the lifetime of its associated instance. If an instance reboots (intentionally or unintentionally), data in the instance store persists. However, data in the instance store is lost under the following circumstances:
The underlying disk drive fails
The instance stops
The instance terminates
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Restart = Stop & (Re)start…
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D.
The data is preserved
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