Amazon Exam SAP-C02 Topic 3 Question 23 Discussion

Actual exam question for Amazon's SAP-C02 exam

Question #: 23
Topic #: 3

A company is currently in the design phase of an application that will need an RPO of less than 5 minutes and an RTO of less than 10 minutes. The solutions architecture team is forecasting that the database will store approximately 10 TB of dat

a. As part of the design, they are looking for a database solution that will provide the company with the ability to fail over to a secondary Region.

Which solution will meet these business requirements at the LOWEST cost?

ADeploy an Amazon Aurora DB cluster and take snapshots of the cluster every 5 minutes. Once a snapshot is complete, copy the snapshot to a secondary Region to serve as a backup in the event of a failure.

BDeploy an Amazon RDS instance with a cross-Region read replica in a secondary Region. In the event of a failure, promote the read replica to become the primary.

CDeploy an Amazon Aurora DB cluster in the primary Region and another in a secondary Region. Use AWS DMS to keep the secondary Region in sync.

DDeploy an Amazon RDS instance with a read replica in the same Region. In the event of a failure, promote the read replica to become the primary.

Show Suggested Answer

Suggested Answer: B

The best solution is to deploy an Amazon RDS instance with a cross-Region read replica in a secondary Region. This will provide the company with a database solution that can fail over to the secondary Region in case of a disaster. The read replica will have minimal replication lag and can be promoted to become the primary in less than 10 minutes, meeting the RTO requirement. The RPO requirement of less than 5 minutes can also be met by using synchronous replication within the primary Region and asynchronous replication across Regions. This solution will also have the lowest cost compared to the other options, as it does not involve additional services or resources.Reference:[Amazon RDS User Guide], [Amazon Aurora User Guide]

by Zona at Jan 28, 2024, 10:47 PM

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Jerry

8 months ago

Absolutely. And taking snapshots to the secondary Region is a smart way to provide the backup we need. That's gotta be the lowest cost solution that meets the requirements.

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8 months ago

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Sean

8 months ago

I agree. The RTO of less than 10 minutes is going to be tough with a read replica setup. We need something more robust that can failover quickly.

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Lashawn

8 months ago

Hmm, this is a tricky one. We need to meet some pretty tight RPO and RTO requirements, and the amount of data is substantial. I'm not sure a basic RDS instance with a read replica will cut it here.

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