Exam AWS DevOps Engineer Professional All Questions

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Exam AWS DevOps Engineer Professional topic 1 question 102 discussion

Exam question from Amazon's AWS DevOps Engineer Professional

Question #: 102
Topic #: 1

[All AWS DevOps Engineer Professional Questions]

A company runs an application on one Amazon EC2 instance. Application metadata is stored in Amazon S3 and must be retrieved if the instance is restarted. The instance must restart or relaunch automatically if the instance becomes unresponsive.

Which solution will meet these requirements?

A. Create an Amazon CloudWatch alarm for the StatusCheckFailed metric. Use the recover action to stop and start the instance. Use an S3 event notification to push the metadata to the instance when the instance is back up and running.
B. Configure AWS OpsWorks, and use the auto healing feature to stop and start the instance. Use a lifecycle event in OpsWorks to pull the metadata from Amazon S3 and update it on the instance.
C. Use EC2 Auto Recovery to automatically stop and start the instance in case of a failure. Use an S3 event notification to push the metadata to the instance when the instance is back up and running.
D. Use AWS CloudFormation to create an EC2 instance that includes the UserData property for the EC2 resource. Add a command in UserData to retrieve the application metadata from Amazon S3.

Show Suggested Answer

Suggested Answer: B 🗳️

by Maygam at Nov. 28, 2022, 2:12 p.m.

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Comments

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Gomer

1 year, 1 month ago

Identical to Question #: 24

upvoted 1 times

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bgc1

2 years, 4 months ago

Selected Answer: B

Same reasons as Bulti

upvoted 1 times

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Piccaso

2 years, 4 months ago

Selected Answer: B

A and C are eliminated, because S3 event notification cannot satisfy the context that the instance will be started when it does not respond. D does not work.

upvoted 1 times

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Bulti

2 years, 5 months ago

Selected Answer: B

B is correct because A and C are technically incorrect and D is incomplete in terms of meeting the requirements.

upvoted 2 times

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Oleg_gol

2 years, 5 months ago

Selected Answer: B

https://www.examtopics.com/discussions/amazon/view/47002-exam-aws-devops-engineer-professional-topic-1-question-199/

upvoted 1 times

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saggy4

2 years, 6 months ago

A and C - S3 event notification are triggered when the objects change in S3. D - Only half of solution. No mention of how the instance will be recovered B - Is the correct option.

upvoted 4 times

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nsvijay04b1

2 years, 7 months ago

Selected Answer: B

Agree with @smileyCloud

upvoted 2 times

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quixo

2 years, 7 months ago

I'll go with B A) and C) are wrong because there is no such thing like: "Use a trigger in Amazon S3 to push the metadata to the instance when it is back up and running" There is no information about updating or putting a new metadata file to S3, so you can't create an event if nothing happens to the bucket. Also there is no way to push from s3 to ec2 instance, that's not the case D) is incomplete

upvoted 2 times

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SmileyCloud

2 years, 7 months ago

Selected Answer: B

While A and C seem straightforward, it doesn't say who's gonna trigger the S3 event notification. This event happens only if there is a change in S3, not EC2. Looks strange, but B is the correct answer.

upvoted 3 times

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Maygam

2 years, 7 months ago

Selected Answer: A

https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/UsingAlarmActions.html

upvoted 3 times

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