A user has launched an EBS backed instance. The user started the instance at 9 AM in the
morning. Between 9 AM to 10 AM, the user is testing some script. Thus, he stopped the instance
twice and restarted it. In the same hour the user rebooted the instance once. For how many
instance hours will AWS charge the user?
A.
3 hours
B.
4 hours
C.
2 hours
D.
1 hour
Explanation:
A user can stop/start or 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.
When the instance is rebooted AWS will not charge the user for the extra hours. In case the user
stops the instance, AWS does not charge the running cost but charges only the EBS storage cost.
If the user starts and stops the instance multiple times in a single hour, AWS will charge the user
for every start and stop. In this case, since the instance was rebooted twice, it will cost the user for
3 instance hours.
each start and stop cost is 1 separate hour while reboot does not cost separate hour.
A
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0
A reboot doesn’t cost anything. A restart doesn’t cost anything. Technically every time an instance is started, its an hour.
A is the answer.
0
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