Exam AWS Certified Solutions Architect - Professional SAP-C02 topic 1 question 135 discussion

DynamoDB global tables + S3 replication+Cloudfront

Option C is the correct answer because it meets the requirements of reducing latency, improving reliability and requiring minimal effort to implement. By creating another S3 bucket in a new Region, and configuring S3 Cross-Region Replication between the buckets, the game assets will be replicated to the new Region, reducing latency for users accessing the assets from that region. Additionally, by creating an Amazon CloudFront distribution and configuring origin failover with two origins accessing the S3 buckets in each Region, it ensures that the game assets will be served to users even if one of the regions becomes unavailable. Configuring DynamoDB global tables by enabling Amazon DynamoDB Streams, and adding a replica table in a new Region, will also improve reliability by allowing the player scores to be replicated and updated in multiple regions, ensuring that the scores are available even in the event of a regional failure.

Just to add for DynamoDB, indeed you will need to create replica in the new region when creating global table, making it accessible in the new region nearer to the user. https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/V2globaltables.tutorial.html

Option C is correct. Just to clarify: AWS uses DynamoDB Streams to replicate DynamoDB Global Tables. Using the Console, it is enabled automatically. Using the CLI, you must enable it explicitly by using StreamEnabled=true.

A = "Configure S3 Cross-Region Replication" but doesn't create a new bucket in another region. B = "Configure S3 Same-Region Replication" without creating a second bucket and this should be cross-region. AWS DMS with CDC is not a good fit here, global table is the right option here C = correct D = we need the new bucket in a different region

Option C

Answer C. Regarding DynamoDB Streams - Global tables use DynamoDB Streams to replicate data across different Regions. When you create a replica for a global table, a stream is created by default. Any changes to a replica are replicated to all the other replicas within the same global table within a second using DynamoDB Streams.

The answer is A. C added unnecessary complexities such as Amazon DynamoDB Streams and Origin Failover.

other option are incorrect. B: Configure S3 Same-Region Replication.---> It's not meet multi-region requirement. C: Create an Amazon CloudFront distribution and configure origin failover with two origins accessing the S3 buckets in each Region. ---> It's not support for this kinda failover D: Create another S3 bucket in the same Region, and configure S3 Same-Region Replication between the buckets. ---> It's not meet multi-region requirement.

option c is the easiest way to do

Creating an Amazon CloudFront distribution will reduce latency for global users by serving assets from the closest edge location. S3 Cross-Region Replication will ensure that game assets are available in another region, improving reliability. Creating a new DynamoDB table in a new region and using it as a replica target for DynamoDB global tables will enable multi-region replication, improving reliability.

Option C has another differentiator - DynamoDBStreams that will assist in Reliability

Correct A. CloudFront does not support origin failover with two origins accessing the S3 buckets in each Region. According to the AWS documentationhttps://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/high_availability_origin_failover.html, origin failover only works within the same Region, not across Regions. This means that you can only configure origin failover with two origins that are in the same Region as the CloudFront distribution. If you want to use origin failover with S3 buckets in different Regions, you need to create multiple CloudFront distributions, one for each Region, and configure them to use the same domain name with geolocation routinghttps://blog.ippon.tech/when-a-cloudfront-origin-must-fail-for-testing-high-availability/.

weird question wording, but C fit more

Create another S3 bucket in a new Region, and configure S3 Cross-Region Replication between the buckets

C is correct. S3 cross replicate, CloudFront, Dynamodb global database and origin failover