Alibaba Exam ACA-Developer Topic 6 Question 44 Discussion

Actual exam question for Alibaba's ACA-Developer exam

Question #: 44
Topic #: 6

A Developer is asked to implement a caching layer in front of RDS. Cached content is expensive to regenerate in case of service failure. Which implementation below would work while maintaining maximum uptime?

AImplement ApsaraDB for Redis in Cluster Mode

BInstall Redis on an ECS instance

CImplement ApsaraDB for Redis in Standard Mode

DMigrate the ROS database to HBase to save the cache layer

Show Suggested Answer

Suggested Answer: B, C, D

by Casie at Jul 25, 2023, 01:46 AM

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Colton

5 hours ago

ApsaraDB for Redis in Standard Mode could work, but I think the Cluster Mode is a better choice to handle the expensive cached content in case of service failures.

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Krissy

3 days ago

Installing Redis on an ECS instance might work, but I'm worried about managing the Redis server and ensuring high uptime. The managed ApsaraDB for Redis solution seems more appealing.

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Kenda

7 days ago

That's a good point, but I still think option A is the safest choice for maintaining maximum uptime.

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Ryan

8 days ago

I disagree, I believe option C is better as ApsaraDB for Redis in Standard Mode is more cost-effective.

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Tamar

9 days ago

I'm not sure about migrating the RDS database to HBase just to save the cache layer. That seems like overkill and could introduce more complexity than necessary.

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Luisa

10 days ago

Implementing ApsaraDB for Redis in Cluster Mode sounds like the way to go. It'll provide high availability and scalability for the caching layer.

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Kenda

10 days ago

I think option A would work best because ApsaraDB for Redis in Cluster Mode provides high availability.

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Kenneth

13 days ago

I'm not sure, but I think option C could also work well since ApsaraDB for Redis in Standard Mode is also a good choice for caching.

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Marshall

14 days ago

I agree with Jennifer, option A seems like the most reliable choice for maintaining uptime.

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Jennifer

21 days ago

I think option A would work best because ApsaraDB for Redis in Cluster Mode provides high availability.

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