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Exam ANS-C00 topic 1 question 148 discussion

Exam question from Amazon's ANS-C00
Question #: 148
Topic #: 1
[All ANS-C00 Questions]

Your organization has placed a project on hold and has stopped 30 public EC2 instances. These instances use instance store volumes and do not have custom
AMIs associated. You are still being charged every month.
What is the charge probably for?

  • A. AWS charges for dormant accounts.
  • B. You have Elastic IPs associated with those instances.
  • C. There is a "stopped instance" fee that AWS charges every month.
  • D. You are being charged for the EBS volumes.
Show Suggested Answer Hide Answer
Suggested Answer: B 🗳️
You have Elastic IPs associated with those instances. AWS charges for any unused Elastic IPs in your account.

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Scunningham99
Highly Voted 3 years, 7 months ago
B as EIP are charged when not in use. The EC2 is using instance store volumes - NOT EBS
upvoted 7 times
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ongre_
Most Recent 2 years, 9 months ago
Answer is B. EIPs that remain unassociated attract a charge from AWS
upvoted 1 times
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Marty2021
2 years, 11 months ago
Selected Answer: B
Instance store volumes are deleted when the instance is terminated https://aws.amazon.com/premiumsupport/knowledge-center/instance-store-vs-ebs/ Most appropriate answer is B but it should mentioned "unattached EIPs" as attached EIPs are not charged for
upvoted 1 times
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neershah
3 years, 3 months ago
B is the correct one
upvoted 1 times
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TerrenceC
3 years, 6 months ago
Since the question highlights all the stopped instances are public-facing and also, it highlights that all the instances use Instance Store, therefore, the most suitable answer is B without doubt. However, when we turn to the "feasible answer" instead of the "best answer" then option #D could be a candidate. The main reason is that Instance Store is used for cache this kind of non-permanent data, the OS still has to be installed in the permanent drive which is the EBS volume in this case.
upvoted 2 times
sapien45
3 years, 2 months ago
Great answer here. B in the context of the exam D in real life
upvoted 2 times
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viestner
3 years, 5 months ago
The questiion says "instance store volumes" not EBS, so D will be wrong. C is wrong, instances wer terminated. Although the question does not mention that the instances have associated elastic ips, option B would be the one that would make sense
upvoted 1 times
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doski
3 years, 7 months ago
There was no mention of Elastic IP, you're being charged because of the EBS https://aws.amazon.com/premiumsupport/knowledge-center/ebs-charge-stopped-instance/#:~:text=You%20are%20charged%20for%20Amazon,when%20the%20instance%20is%20stopped.
upvoted 2 times
doski
3 years, 7 months ago
I think b is correct, will withdraw my assertion above
upvoted 1 times
walkwolf3
3 years, 6 months ago
The cost of instance store is included in the EC2 instance. The charge will stop once EC2 instance stops. So the answer is B.
upvoted 1 times
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C (25%)
B (20%)
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