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Exam AWS-SysOps topic 1 question 48 discussion

Exam question from Amazon's AWS-SysOps
Question #: 48
Topic #: 1
[All AWS-SysOps Questions]

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

  • A. Data will be deleted and win no longer be accessible
  • B. Data is automatically saved in an EBS volume.
  • C. Data is automatically saved as an EBS snapshot
  • D. Data is unavailable until the instance is restarted
Show Suggested Answer Hide Answer
Suggested Answer: A 🗳️
However, data in the instance store is lost under the following circumstances:

The underlying disk drive fails -

The instance stops -

The instance terminates -
Reference:
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/InstanceStorage.html#instance-store-lifetime

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ddd
Highly Voted 1 year, 1 month ago
The question is " what happens to the data on any ephemeral store volumes"? The first part of the sentence about EBS-backed doesn't matter. Ephemeral store refers to the storage on the instance which is deleted. Answer is A.
upvoted 7 times
AWS_Noob
1 year ago
Agreed. They are only mentioning EBS backed to trick you in thinking that's what is being asked.
upvoted 5 times
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awscertified
Highly Voted 1 year ago
A. Data will be deleted and win no longer be accessible
upvoted 5 times
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Finger41
Most Recent 4 months, 3 weeks ago
Selected Answer: A
A - https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/Stop_Start.html#starting-stopping-instances
upvoted 1 times
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TroyMcLure
11 months, 3 weeks ago
Correct Answer: A This one was tricky. The instance has a root EBS volume (Persistent), but the question is asking about what happens to any Instance-store volumes (Ephemeral) attached to it. If it's ephemeral, data is deleted and will be no longer accessible.
upvoted 1 times
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RicardoD
12 months ago
A is the answer When you stop a machine, all ephemeral storage data will be lost
upvoted 1 times
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Kuntazulu
12 months ago
A - Ephemeral storage is the volatile temporary storage attached to your instances which is only present during the running lifetime of the instance. In the case that the instance is stopped or terminated or underlying hardware faces an issue, any data stored on ephemeral storage would be lost. This storage is part of the disk attached to the instance. It turns out to be a fast performing storage solution, but a non-persistent one, when compared to EBS backup volumes.
upvoted 2 times
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TD_Anjali
12 months ago
A. 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 any of the following circumstances: The underlying disk drive fails The instance stops The instance hibernates The instance terminates
upvoted 1 times
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waterzhong
1 year ago
phemeral store refers to the storage on the instance which is deleted. Answer is A.
upvoted 1 times
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mrbreeze
1 year ago
A When stopped, ephemeral data is lost.
upvoted 1 times
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pythonpanda
1 year ago
shouldnt it be D, since instance is stopped and not terminated, instance backed store only loses data when terminated, you can restart the instance and data will still be there. if you terminate data is lost
upvoted 2 times
FHU
12 months ago
Negative. With Instance store or ephemeral volumes, data gets lost if you stop or terminate the instance.
upvoted 1 times
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Praggy_25
1 year ago
I had the same opinion. Can someone explain here why Option D is incorrect?
upvoted 1 times
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[Removed]
1 year ago
Answer is A - They mention ephemeral storage which is also known as "instance storage". All data is lost when the instance is terminated since it's instance storage.
upvoted 1 times
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captchaaa
1 year ago
Answer A: "delete on termination" is the default for all EBS root device volumes
upvoted 1 times
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karmaah
1 year, 1 month ago
Just curious..is it possible to attach or mount any ephemeral storage on Ec2 EBS backed instance. ( The question says like that )
upvoted 1 times
shimmy
1 year ago
Yes, you can have an EBS-backed root volume and the additional volumes can be instance store.
upvoted 2 times
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karmaah
1 year, 1 month ago
Ans should be B becoz , The question is wrong. It should be either Instance Store-backed Instances or EBS-backed Instances. The question says EBS Backed, but ans shows Instance store related.
upvoted 1 times
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C (25%)
B (20%)
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