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Exam AWS Certified Solutions Architect - Associate SAA-C03 All Questions

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Exam AWS Certified Solutions Architect - Associate SAA-C03 topic 1 question 561 discussion

Exam question from Amazon's AWS Certified Solutions Architect - Associate SAA-C03
Question #: 561
Topic #: 1
[All AWS Certified Solutions Architect - Associate SAA-C03 Questions]

A company's website handles millions of requests each day, and the number of requests continues to increase. A solutions architect needs to improve the response time of the web application. The solutions architect determines that the application needs to decrease latency when retrieving product details from the Amazon DynamoDB table.

Which solution will meet these requirements with the LEAST amount of operational overhead?

  • A. Set up a DynamoDB Accelerator (DAX) cluster. Route all read requests through DAX.
  • B. Set up Amazon ElastiCache for Redis between the DynamoDB table and the web application. Route all read requests through Redis.
  • C. Set up Amazon ElastiCache for Memcached between the DynamoDB table and the web application. Route all read requests through Memcached.
  • D. Set up Amazon DynamoDB Streams on the table, and have AWS Lambda read from the table and populate Amazon ElastiCache. Route all read requests through ElastiCache.
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Suggested Answer: A 🗳️
by Bmaster at Aug. 2, 2023, 2:19 a.m.
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mrsoa
Highly Voted 1 year, 3 months ago
Selected Answer: A
A , because B,C and D contains Elasticache which required a heavy code changes, so more operational overhead
upvoted 8 times
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sandordini
Most Recent 7 months ago
Selected Answer: A
DAX to reduce latency
upvoted 2 times
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TariqKipkemei
1 year ago
Selected Answer: A
decrease latency when retrieving product details from the Amazon DynamoDB = Amazon DynamoDB Accelerator (DAX)
upvoted 4 times
...
Guru4Cloud
1 year, 3 months ago
Selected Answer: A
The key reasons: DAX provides a DynamoDB-compatible caching layer to reduce read latency. It is purpose-built for accelerating DynamoDB workloads. Using DAX requires minimal application changes - only read requests are routed through it. DAX handles caching logic automatically without needing complex integration code. ElastiCache Redis/Memcached (Options B/C) require more integration work to sync DynamoDB data. Using Lambda and Streams to populate ElastiCache (Option D) is a complex event-driven approach requiring ongoing maintenance. DAX plugs in seamlessly to accelerate DynamoDB with very little operational overhead
upvoted 2 times
...
Deepakin96
1 year, 3 months ago
Selected Answer: A
DynamoDB = DAX
upvoted 2 times
...
Bmaster
1 year, 3 months ago
only A
upvoted 2 times
...

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