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Exam AWS Certified Solutions Architect - Professional topic 1 question 817 discussion

Exam question from Amazon's AWS Certified Solutions Architect - Professional
Question #: 817
Topic #: 1
[All AWS Certified Solutions Architect - Professional Questions]

A retail company is hosting an ecommerce website on AWS across multiple AWS Regions. The company wants the website to be operational at all times for online purchases. The website stores data in an Amazon RDS for MySQL DB instance.
Which solution will provide the HIGHEST availability for the database?

  • A. Configure automated backups on Amazon RDS. In the case of disruption, promote an automated backup to be a standalone DB instance. Direct database traffic to the promoted DB instance. Create a replacement read replica that has the promoted DB instance as its source.
  • B. Configure global tables and read replicas on Amazon RDS. Activate the cross-Region scope. In the case of disruption, use AWS Lambda to copy the read replicas from one Region to another Region.
  • C. Configure global tables and automated backups on Amazon RDS. In the case of disruption, use AWS Lambda to copy the read replicas from one Region to another Region.
  • D. Configure read replicas on Amazon RDS. In the case of disruption, promote a cross-Region and read replica to be a standalone DB instance. Direct database traffic to the promoted DB instance. Create a replacement read replica that has the promoted DB instance as its source.
Show Suggested Answer Hide Answer
Suggested Answer: D 🗳️
by Riho at Jan. 4, 2022, 12:06 p.m.
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kangtamo
Highly Voted 2 years, 10 months ago
Selected Answer: D
Agree with D.
upvoted 5 times
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Greanny
Most Recent 1 year, 1 month ago
why not B?
upvoted 1 times
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ggrodskiy
1 year, 9 months ago
Correct D.
upvoted 1 times
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Heer
2 years, 3 months ago
Those who have selected Option D . Read replicas do not provide high availability for writes to the database. Only the primary instance can accept write requests, and if the primary instance becomes unavailable, the read replicas will not be able to accept write requests. Option A seems to be a slight better option here
upvoted 1 times
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KennethTam
3 years, 1 month ago
D is correct
upvoted 3 times
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Ishu_awsguy
3 years, 2 months ago
These look like associate level questions
upvoted 2 times
adsdadasdad
3 years, 1 month ago
They are more tough than associate and require more knowledge, if they seem easy it shows how little you actually know.
upvoted 5 times
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wassb
2 years, 6 months ago
Don't think so. Associate lvl answer in this case would simply be : "Configure Multi AZ on your RDS" ... and you are done
upvoted 1 times
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tkanmani76
3 years, 3 months ago
Agree on D
upvoted 1 times
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Riho
3 years, 4 months ago
A is working option, but with data loss. Solution I really won't recommend as automatic solution. D seems to be right answer.
upvoted 4 times
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