Alibaba Exam ACA-CloudNative Topic 4 Question 109 Discussion

Actual exam question for Alibaba's ACA-CloudNative exam

Question #: 109
Topic #: 4

Choose the statements that are TRUE about Microservices architecture in microservice pattern? (The number of correct answer: 2)

AAll communications and business logic should use a middleware called ESB(enterprise service bus), so all service maintenance will be in one place.

BExternal applications should use API Gateway

CCommunications from other applications should directly use Database PL/SQL, it will become efficient

DCommunication in microservices architecture should use Proxy and VPN, and it will be more secured

EUse session from webservice for stateless Authentication R Use JSON Web Tokens(JWT) for stateless Authentication

Show Suggested Answer

Suggested Answer: A, B

by Roxane at Mar 23, 2025, 04:10 PM

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Willie

11 days ago

JWT for stateless authentication? That's the way to go! No more session headaches in my microservices.

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Keneth

15 days ago

I'm not sure about A, but I definitely think B and E are crucial for Microservices architecture.

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Lino

15 days ago

D is just overkill. Proxy and VPN? Microservices are supposed to be lightweight and scalable, not a fortress!

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Daryl

20 days ago

I believe A and D are also correct. Using ESB and Proxy/VPN can enhance security and maintenance.

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Luther

25 days ago

Haha, C is a terrible idea! Accessing the database directly from external apps? That's like inviting a hacker to your house and giving them the keys.

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Brittni

5 days ago

B) External applications should use API Gateway

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Vincenza

29 days ago

B and E are the correct answers. Using a middleware like ESB goes against the core principles of microservices, and direct database access is a big no-no.

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Robt

3 days ago

E) Use session from webservice for stateless Authentication R Use JSON Web Tokens(JWT) for stateless Authentication

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Jacquline

18 days ago

B) External applications should use API Gateway

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Lawrence

1 months ago

I agree with you, Lawrence. API Gateway and JWT are essential in Microservices architecture.

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Skye

1 months ago

I think B and E are the correct statements.

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