Topic 1 Question 72

AWS Certified Solutions Architect - Professional

Topic 1 Question 72
An application is using an Amazon RDS for MySQL Multi-AZ DB instance in the us-east-1 Region. After a failover test, the application lost the connections to the database and could not re-establish the connections. After a restart of the application, the application re-established the connections.

A solutions architect must implement a solution so that the application can re-establish connections to the database without requiring a restart.

Which solution will meet these requirements?
- Create an Amazon Aurora MySQL Serverless v1 DB instance. Migrate the RDS DB instance to the Aurora Serverless v1 DB instance. Update the connection settings in the application to point to the Aurora reader endpoint.
- Create an RDS proxy. Configure the existing RDS endpoint as a target. Update the connection settings in the application to point to the RDS proxy endpoint.
- Create a two-node Amazon Aurora MySQL DB cluster. Migrate the RDS DB instance to the Aurora DB cluster. Create an RDS proxy. Configure the existing RDS endpoint as a target. Update the connection settings in the application to point to the RDS proxy endpoint.
- Create an Amazon S3 bucket. Export the database to Amazon S3 by using AWS Database Migration Service (AWS DMS). Configure Amazon Athena to use the S3 bucket as a data store. Install the latest Open Database Connectivity (ODBC) driver for the application. Update the connection settings in the application to point to the Athena endpoint
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- B is correct. C: Aurora is useless, Proxy is pointing to existing RDS
  
  👍 4
  zhangyu200002023/01/15
- 正解だと思う選択肢: B
  Amazon RDS Proxy is a fully managed database proxy service for Amazon Relational Database Service (RDS) that makes applications more scalable, resilient, and secure. It allows applications to pool and share connections to an RDS database, which can help reduce database connection overhead, improve scalability, and provide automatic failover and high availability.
  
  👍 4
  God_Is_Love2023/03/02
- 正解だと思う選択肢: B
  The correct solution is B. Create an RDS proxy. Configure the existing RDS endpoint as a target. Update the connection settings in the application to point to the RDS proxy endpoint.
  
  An RDS proxy is a service that allows you to pool and share connections to an RDS database. By using an RDS proxy, your application can automatically reconnect to the database after a failover event, without the need to restart the application.
  
  Solution A, migrating to Aurora Serverless, may not solve the problem because Aurora Serverless does not support Multi-AZ. Solution C and D are not the correct solutions because it does not solve the problem of reconnecting to the database after a failover event.
  
  👍 3
  masetromain2023/01/14
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