ExpertMedium1 markMultiple Choice
AWS SAA-C03 · Question 46 · Domain 3.3: Database Performance
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?
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:
A.
Amazon ElastiCache for Redis
B.
Amazon DynamoDB Accelerator (DAX)
C.
Amazon CloudFront
D.
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)
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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