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Amazon DVA-C02 Exam - Topic 3 Question 68 Discussion

A company has a social media application that receives large amounts of traffic User posts and interactions are continuously updated in an Amazon RDS database The data changes frequently, and the data types can be complex The application must serve read requests with minimal latencyThe application's current architecture struggles to deliver these rapid data updates efficiently The company needs a solution to improve the application's performance.Which solution will meet these requirements'?
D) Create an Amazon ElastiCache for Redis cluster. Update the application code to use a write-through caching strategy and read the data from Redis.
A) Use Amazon DynamoDB Accelerator (DAX) in front of the RDS database to provide a caching layer for the high volume of rapidly changing data
B) Set up Amazon S3 Transfer Acceleration on the RDS database to enhance the speed of data transfer from the databases to the application.
C) Add an Amazon CloudFront distribution in front of the RDS database to provide a caching layer for the high volume of rapidly changing data

Amazon DVA-C02 Exam - Topic 3 Question 68 Discussion

Actual exam question for Amazon's DVA-C02 exam
Question #: 68
Topic #: 3
[All DVA-C02 Questions]

A company has a social media application that receives large amounts of traffic User posts and interactions are continuously updated in an Amazon RDS database The data changes frequently, and the data types can be complex The application must serve read requests with minimal latency

The application's current architecture struggles to deliver these rapid data updates efficiently The company needs a solution to improve the application's performance.

Which solution will meet these requirements'?

Show Suggested Answer Hide Answer
Suggested Answer: D

Amazon ElastiCache for Redis:An in-memory data store known for extremely low latency, ideal for caching frequently accessed, complex data.

Write-Through Caching:Ensures that data is always consistent between the cache and the database. Writes go to both Redis and RDS.

Performance Gains:Redis handles reads with minimal latency, offloading the RDS database and improving the application's responsiveness.


Amazon ElastiCache for Redis Documentation:https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/

Caching Strategies:https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/Strategies.html

by Phuong at Jun 29, 2026, 11:22 AM

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Coral
4 hours ago
What about option B? S3 Transfer Acceleration seems irrelevant.
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Yuriko
5 days ago
I still prefer D. Redis is powerful for caching.
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An
11 days ago
True, but it can cache dynamic content too.
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Dyan
16 days ago
I feel like option C is a bit off. CloudFront is for static content.
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Edmond
21 days ago
Yes, but it can still help with RDS if used correctly.
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Mireya
26 days ago
But DAX is specifically designed for DynamoDB, right?
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Winfred
1 month ago
Option D sounds good too. ElastiCache can speed up reads.
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Justine
1 month ago
I agree, DAX can handle rapid updates well.
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Lavonna
1 month ago
I think option A is the best. DAX is great for caching.
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Elvera
2 months ago
Not sure if CloudFront is the right fit for this scenario.
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Brandon
2 months ago
Totally agree with ElastiCache, it's super fast!
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Annamaria
2 months ago
Wait, can DAX really handle that much data change?
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Ezekiel
2 months ago
I think ElastiCache for Redis would be better for rapid updates.
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Roslyn
2 months ago
DAX sounds like a solid choice for caching!
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Avery
2 months ago
I vaguely recall that S3 Transfer Acceleration is more about file transfers rather than database queries, so I don't think that's the answer. ElastiCache sounds promising, though!
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Lillian
3 months ago
I think using CloudFront might not be the right fit since it's more for static content. I’m leaning towards DAX or ElastiCache, but I’m not entirely confident.
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Joanna
3 months ago
I feel like we had a practice question about using ElastiCache for Redis. It seems like a solid option for caching, but I wonder if the write-through strategy is the best approach here.
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Jerry
3 months ago
I remember we discussed caching strategies in class, and I think DAX could help with read latency, but I'm not sure if it handles complex data types well.
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