Exam AWS Certified Solutions Architect - Associate SAA-C03 topic 1 question 578 discussion

Exam question from Amazon's AWS Certified Solutions Architect - Associate SAA-C03

Question #: 578
Topic #: 1

[All AWS Certified Solutions Architect - Associate SAA-C03 Questions]

A company deployed a serverless application that uses Amazon DynamoDB as a database layer. The application has experienced a large increase in users. The company wants to improve database response time from milliseconds to microseconds and to cache requests to the database.

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

A. Use DynamoDB Accelerator (DAX).
B. Migrate the database to Amazon Redshift.
C. Migrate the database to Amazon RDS.
D. Use Amazon ElastiCache for Redis.

Show Suggested Answer

Suggested Answer: A 🗳️

by Bmaster at Aug. 2, 2023, 4:31 a.m.

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h8er

Highly Voted 2 years ago

Selected Answer: A

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. https://aws.amazon.com/dynamodb/dax/#:~:text=Amazon%20DynamoDB%20Accelerator%20(DAX)%20is,millions%20of%20requests%20per%20second.

upvoted 11 times

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MatAlves

Most Recent 11 months, 1 week ago

Amazon ElastiCache for Redis would help with "caching requests", but not " improve database response" itself.

upvoted 2 times

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awsgeek75

1 year, 7 months ago

Selected Answer: A

DAX is least operations overhead. B: Redshift, although powerful, but is for analytics C: Downgrading to RDS won't help D: EC for Redis is more for persistent caching so would be good but lot of operational overhead

upvoted 3 times

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