Amazon Exam SAP-C02 Topic 10 Question 31 Discussion

Actual exam question for Amazon's SAP-C02 exam

Question #: 31
Topic #: 10

A company has deployed its database on an Amazon RDS for MySQL DB instance in the us-east-1 Region. The company needs to make its data available to customers in Europe. The customers in Europe must have access to the same data as customers in the United States (US) and will not tolerate high application latency or stale dat

a. The customers in Europe and the customers in the US need to write to the database. Both groups of customers need to see updates from the other group in real time.

Which solution will meet these requirements?

ACreate an Amazon Aurora MySQL replica of the RDS for MySQL DB instance. Pause application writes to the RDS DB instance. Promote the Aurora Replica to a standalone DB cluster. Reconfigure the application to use the Aurora database and resume writes. Add eu-west-1 as a secondary Region to the 06 cluster. Enable write forwarding on the DB cluster. Deploy the application in eu-west-1. Configure the application to use the Aurora MySQL endpoint in eu- west-1.

BAdd a cross-Region replica in eu-west-1 for the RDS for MySQL DB instance. Configure the replica to replicate write queries back to the primary DB instance. Deploy the application in eu-west-1. Configure the application to use the RDS for MySQL endpoint in eu-west-1.

CCopy the most recent snapshot from the RDS for MySQL DB instance to eu-west-1. Create a new RDS for MySQL DB instance in eu-west-1 from the snapshot. Configure MySQL logical replication from us-east-1 to eu-west-1. Enable write forwarding on the DB cluster. Deploy the application in eu-west-1. Configure the application to use the RDS for MySQL endpoint in eu-west-1.

DConvert the RDS for MySQL DB instance to an Amazon Aurora MySQL DB cluster. Add eu-west-1 as a secondary Region to the DB cluster. Enable write forwarding on the DB cluster. Deploy the application in eu-west-1. Configure the application to use the Aurora MySQL endpoint in eu-west-1.

Show Suggested Answer

Suggested Answer: A, E

Configuring read replicas for Amazon RDS MySQL and using the single reader endpoint in the web application can significantly reduce the load on the backend database tier, improving overall application performance. Additionally, implementing an Amazon ElastiCache cluster between the web application and RDS MySQL instances can further reduce database load by caching frequently accessed data, thereby enhancing the application's resilience and scalability. These changes address the root cause of the outage by alleviating the database tier's high load and preventing similar issues in the future.

by Malcolm at May 18, 2024, 12:48 PM

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2 months ago

I think option A is the best solution because it involves creating an Aurora MySQL replica and promoting it to a standalone DB cluster.

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