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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Serina

28 days ago

Ah, the classic 'cache or HBase' dilemma. I wonder if they'll also consider implementing a blockchain-based microservices architecture to really make things interesting.

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Ressie

10 days ago

B: Install Redis on an ECS instance

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Dalene

22 days ago

A: Implement ApsaraDB for Redis in Cluster Mode

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Colton

1 months 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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Emile

22 days ago

B: I agree, it would help maintain maximum uptime for the cached content.

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Theodora

23 days ago

A: I think implementing ApsaraDB for Redis in Cluster Mode would be the best option.

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Krissy

1 months 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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Ahmed

4 days ago

D: Migrating the ROS database to HBase seems like a drastic solution compared to using ApsaraDB for Redis.

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Deandrea

11 days ago

C: ApsaraDB for Redis in Standard Mode could also work well for maintaining high availability.

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Rodrigo

23 days ago

B: I agree, managing a Redis server on an ECS instance could be risky in terms of uptime.

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Leonor

28 days ago

A: I think implementing ApsaraDB for Redis in Cluster Mode would be the best option for maximum uptime.

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Kenda

2 months 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

2 months 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

2 months 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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Mila

24 days ago

B: I agree, it would provide high availability and scalability for the caching layer.

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Clay

1 months ago

A: I think implementing ApsaraDB for Redis in Cluster Mode would be the best option.

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Luisa

2 months 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

2 months ago

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

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Kenneth

2 months 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

2 months ago

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

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Jennifer

2 months ago

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

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