A global application uses Amazon DynamoDB. Users in the US and Australia experience different latencies. The business requires read and write latencies under 10 milliseconds for all users globally, and data must be synchronized across regions. Which solution meets these requirements?

Answer options:

Deploy DynamoDB in the US and use Amazon CloudFront to cache responses in Australia.

Use DynamoDB Global Tables deployed in the US and Australian regions.

Use DynamoDB DAX in both regions.

Deploy separate DynamoDB tables and use AWS Lambda to sync data asynchronously.

How to approach this question

Identify the DynamoDB feature for multi-region active-active replication.

Full Answer

B.Use DynamoDB Global Tables deployed in the US and Australian regions.✓ Correct

Use DynamoDB Global Tables deployed in the US and Australian regions.

DynamoDB Global Tables provide a fully managed, multi-region, active-active database. Users read and write to their local region, and DynamoDB handles the replication.

Common mistakes

Choosing DAX, which only improves read latency in a single region.

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Practice the full AWS Solutions Architect Professional SAP-C02 Practice Exam 6

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