Discuss Amazon DVA-C02 Exam Topic 4 Question 61

A developer is integrating Amazon ElastiCache in an application. The cache will store data from a database. The cached data must populate real-time dashboards. Which caching strategy will meet these requirements?

AA read-through cache

BA write-behind cache

CA lazy-loading cache

DA write-through cache

Suggested Answer: D

Get Premium DVA-C02 Questions as Interactive Web-Based Practice Test or PDF Real Exam Format Detailed Explanations Instant Access Get Your Practice Test

27 comments · newest first

Lars Holm 9 days ago

Looks like B here because the tricky part is potential stale dashboards from asynchronous writes.

Thad 2 months ago

D) A write-through cache ensures data consistency, but might slow down performance.

Desiree 2 months ago

C) A lazy-loading cache might not provide real-time data.

Cory 2 months ago

I disagree, B) A write-behind cache could be more efficient for updates.

Miriam 2 months ago

I think A) A read-through cache is the best choice. It fetches data on demand.

Diane 3 months ago

D) A write-through cache ensures data consistency, but might slow down performance.

Wenona 3 months ago

C) A lazy-loading cache might not provide real-time data.

Shenika 3 months ago

I disagree, B) A write-behind cache could be more efficient for updates.

Hortencia 3 months ago

I think A) A read-through cache is the best choice. It fetches data on demand.

Laurel 3 months ago

D) A write-through cache ensures data consistency but may slow down performance.

Aliza 3 months ago

C) A lazy-loading cache might not be ideal for real-time. It delays data loading.

Carissa 4 months ago

I disagree, B) A write-behind cache could work too. It updates the cache asynchronously.

Marjory 4 months ago

I think A) A read-through cache is the best choice. It fetches data on demand.

Aileen 4 months ago

Really? I didn't know write-behind caches could be that useful!

Edward 4 months ago

Definitely leaning towards write-through, it keeps data consistent.

Basilia 6 months ago

Wait, I thought lazy-loading was the way to go for real-time?

Elfriede 6 months ago

I disagree, a read-through cache might be more efficient.

Zachary 6 months ago

A write-through cache sounds like the best option here.

Isreal 6 months ago

Surprised no one mentioned write-behind, it could be useful too!

Sharika 6 months ago

Definitely going with write-through, it keeps data consistent.

Tu 7 months ago

Wait, isn't a lazy-loading cache too slow for real-time dashboards?

Elvera 7 months ago

I disagree, I think a read-through cache would work better.

Nancey 7 months ago

A write-through cache sounds like the best fit here.

Matt 7 months ago

I’m leaning towards a write-behind cache, but I’m not confident it would meet the real-time requirement.

Yaeko 7 months ago

I practiced a similar question, and I feel like a read-through cache could also work, but it might not be as efficient for real-time updates.

Anglea 7 months ago

I think a write-through cache might be the right choice since it updates the cache and the database simultaneously.

Cristy 8 months ago

I remember studying caching strategies, but I'm not entirely sure which one is best for real-time dashboards.

Amazon DVA-C02 Exam - Topic 4 Question 61 Discussion