ExpertEasy1 markMultiple Choice
AWS SAA-C03 · Question 45 · Domain 3.3: Database Performance
A gaming company uses Amazon DynamoDB to store player leaderboards. The application experiences heavy read traffic, and the company wants to reduce read latency from milliseconds to microseconds while reducing the load on the DynamoDB table. Which solution should be implemented?
A gaming company uses Amazon DynamoDB to store player leaderboards. The application experiences heavy read traffic, and the company wants to reduce read latency from milliseconds to microseconds while reducing the load on the DynamoDB table. Which solution should be implemented?
Answer options:
A.
Add Amazon ElastiCache for Redis.
B.
Implement Amazon DynamoDB Accelerator (DAX).
C.
Enable DynamoDB Global Tables.
D.
Increase the Read Capacity Units (RCUs) on the table.
How to approach this question
Match 'DynamoDB', 'read latency from milliseconds to microseconds' with DAX.
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—from milliseconds to microseconds.
Common mistakes
Choosing ElastiCache. While possible, DAX is the AWS-recommended, tightly integrated solution for DynamoDB.
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