Alibaba ACA-CloudNative Exam - Topic 2 Question 124 Discussion

Actual exam question for Alibaba's ACA-CloudNative exam

Question #: 124
Topic #: 2

How to keep the data consistency in microservices architecture refer to microservice.io?

AUse PL/SQL Statement from RDBMS

BDatabase lock required (commit and rollback scenario)

CUse store procedure/function from RDBMS

DUse a Choreographer and Event Bus. In the failed scenario in a service, a Choreographer will use event bus to cancel all the communications among services related.

Show Suggested Answer

Suggested Answer: D

by Melina at Apr 13, 2026, 04:27 AM

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Fausto

19 days ago

A and C are outdated methods for this.

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Celeste

24 days ago

D is the best approach for microservices!

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Maia

1 month ago

I recall that using PL/SQL or stored procedures might not align with microservices principles, but I can't remember the exact reasons.

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Zana

1 month ago

I’m a bit confused about the database lock scenario. I feel like it could lead to bottlenecks in a microservices setup.

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Alesia

2 months ago

I think option D sounds familiar; we practiced a similar question about event-driven architecture and how it helps maintain data consistency.

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Fredric

2 months ago

I remember we discussed the importance of eventual consistency in microservices, but I'm not sure if using a Choreographer is the best approach.

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