Which combination of steps should a solutions architect take?

A fitness tracking company serves users around the world, with its primary markets in North America and Asia.

The company needs to design an infrastructure for its read-heavy user authorization application with the following requirements:

• Be resilient to problems with the application in any Region.

• Write to a database in a single Region.

• Read from multiple Regions.

• Support resiliency across application tiers in each Region.

• Support the relational database semantics reflected in the application.

Which combination of steps should a solutions architect take? (Select TWO.)
A . Use an Amazon Route 53 geoproximity routing policy combined with a multivalue answer routing policy.
B. Deploy web. application, and MySQL database servers to Amazon EC2 instances in each Region. Set up the application so that reads and writes are local to the Region. Create snapshots of the web, application, and database servers and store the snapshots in an Amazon S3 bucket in both Regions. Set up cross-Region replication for the database layer.
C. Use an Amazon Route 53 geolocation routing policy combined with a failover routing policy.
D. Set up web, application, and Amazon RDS for MySQL instances in each Region. Set up the application so that reads are local and writes are partitioned based on the user. Set up a Multi-AZ failover for the web, application, and database servers. Set up cross-Region replication for the database layer.
E. Set up active-active web and application servers in each Region. Deploy an Amazon Aurora global database with clusters in each Region. Set up the application to use the in-Region Aurora database endpoints. Create snapshots of the web and application servers and store them in an Amazon S3 bucket in both Regions.

View Answer

Answer: C,E

Explanation:

https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/routing-policy.html

Geoproximity routing policy is good to control the user traffic to specific regions. However, a multivalue answer routing policy may cause the users to be randomly sent to other healthy regions that may be far away from the user’s location. You can use geolocation routing policy to direct the North American users to your servers on the North America region and configure failover routing to the Asia region in case the North America region fails. You can configure the same for the Asian users pointed to the Asia region servers and have the North America region as its backup.