A gaming company uses Amazon DynamoDB to store player profiles. The game requires microsecond latency for read operations to ensure a smooth user experience. The data is frequently accessed but rarely updated.<br/><br/>Which AWS service or feature should be added to the architecture?

Answer options:

Amazon ElastiCache for Redis

Amazon DynamoDB Accelerator (DAX)

Amazon CloudFront

DynamoDB Global Tables

How to approach this question

Look for 'DynamoDB' and 'microsecond latency'.

Full Answer

B.Amazon DynamoDB Accelerator (DAX)✓ Correct

Amazon DynamoDB Accelerator (DAX) is a fully managed, highly available, in-memory cache for Amazon DynamoDB that delivers up to a 10 times performance improvement—from milliseconds to microseconds—even at millions of requests per second.

Common mistakes

Choosing ElastiCache, which requires rewriting the application to manage the cache.

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