A gaming company is launching a new multiplayer game. The backend uses Amazon DynamoDB. The game requires microsecond latency for read operations to ensure a smooth user experience. The read traffic is highly unpredictable and read-heavy. Which solution provides the required performance with the LEAST application code changes?

Answer options:

Implement Amazon ElastiCache for Redis and update the application to check the cache before querying DynamoDB.

Implement Amazon DynamoDB Accelerator (DAX).

Change the DynamoDB table to use Provisioned capacity with Auto Scaling.

Migrate the database to Amazon Aurora Serverless v2.

How to approach this question

Identify the caching solution that is API-compatible with DynamoDB.

Full Answer

B.Implement Amazon DynamoDB Accelerator (DAX).✓ Correct

Implement Amazon DynamoDB Accelerator (DAX).

Amazon DynamoDB Accelerator (DAX) is a fully managed, highly available, in-memory cache for DynamoDB that delivers up to a 10x performance improvement (microseconds). Because it is API-compatible, it requires minimal code changes.

Common mistakes

Choosing ElastiCache, which requires writing custom caching logic.

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