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Alibaba ACA-CloudNative Exam - Topic 4 Question 109 Discussion

Choose the statements that are TRUE about Microservices architecture in microservice pattern? (The number of correct answer: 2)
A) All communications and business logic should use a middleware called ESB(enterprise service bus), so all service maintenance will be in one place. and B) External applications should use API Gateway
C) Communications from other applications should directly use Database PL/SQL, it will become efficient
D) Communication in microservices architecture should use Proxy and VPN, and it will be more secured
E) Use session from webservice for stateless Authentication R Use JSON Web Tokens(JWT) for stateless Authentication

Alibaba ACA-CloudNative Exam - Topic 4 Question 109 Discussion

Actual exam question for Alibaba's ACA-CloudNative exam
Question #: 109
Topic #: 4
[All ACA-CloudNative Questions]

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

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Suggested Answer: A, B

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

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Shelba
4 months ago
Wait, using Proxy and VPN for communication? That’s new to me!
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Donte
5 months ago
C sounds really off, direct DB access isn't efficient!
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Elfrieda
5 months ago
I disagree with A, ESB isn't always needed.
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Isabella
5 months ago
I vaguely recall that direct database access from other applications isn't a good practice in microservices, which makes option C seem wrong.
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Virgie
5 months ago
I feel like using JWT for stateless authentication is a common practice in microservices, so option E might be correct too.
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Pearly
5 months ago
I'm not entirely sure about ESB being necessary for microservices; I thought the idea was to avoid a single point of failure, which makes option A seem questionable.
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Desiree
6 months ago
B and E are definitely true!
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Doug
6 months ago
I remember we discussed that API Gateway is crucial for managing external application requests, so I think option B is definitely true.
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Buck
6 months ago
E is a must for stateless auth, love JWT!
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Daniel
6 months ago
I feel pretty confident about this one. The API Gateway and stateless authentication using JWT are definitely key aspects of microservices architecture. I'll select those options.
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Ligia
6 months ago
I'm a bit confused by some of these choices. Using a VPN for communication doesn't sound like a microservices best practice to me. I'll have to double-check my understanding of the core principles.
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Roxane
7 months ago
Okay, I've got a strategy here. I'll start by eliminating the clearly wrong answers, like the one about using the database directly. Then I can focus on evaluating the remaining options.
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Louann
7 months ago
Hmm, the question is asking about true statements, so I'll need to analyze each option closely. The ESB one seems questionable, but the API Gateway option sounds right.
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Javier
7 months ago
This looks like a tricky question on microservices architecture. I'll need to carefully review the options and think through the best practices.
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Lorriane
7 months ago
Whoa, that's a lot of information to digest. I better take my time and really think through each option to make sure I don't miss anything important.
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Tiera
7 months ago
I'm feeling pretty confident about this one. The correct answers are B and E - using an API gateway for external applications and JSON Web Tokens for stateless authentication.
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Tandra
8 months ago
Okay, I think I've got a handle on this. The key is to identify the options that align with best practices for microservices, like using an API gateway and stateless authentication.
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Emmett
8 months ago
Hmm, I'm a bit unsure about this one. The options seem to cover a range of different microservices concepts, and I'll need to make sure I understand the differences between them.
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Arthur
8 months ago
This looks like a tricky question on microservices architecture. I'll need to carefully read through the options and think about the best practices for microservices communication and security.
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Willie
1 year ago
JWT for stateless authentication? That's the way to go! No more session headaches in my microservices.
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Kyoko
1 year ago
E) Use JSON Web Tokens(JWT) for stateless Authentication
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Eve
1 year ago
B) External applications should use API Gateway
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Keneth
1 year ago
I'm not sure about A, but I definitely think B and E are crucial for Microservices architecture.
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Lino
1 year ago
D is just overkill. Proxy and VPN? Microservices are supposed to be lightweight and scalable, not a fortress!
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Carey
1 year ago
Definitely, the whole point of microservices is to make things more efficient and flexible.
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Jules
1 year ago
I agree, D does seem like overkill. Microservices should be lightweight and scalable.
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Inocencia
1 year ago
E) Use session from webservice for stateless Authentication R Use JSON Web Tokens(JWT) for stateless Authentication
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Ligia
1 year ago
B) External applications should use API Gateway
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Daryl
1 year ago
I believe A and D are also correct. Using ESB and Proxy/VPN can enhance security and maintenance.
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Luther
1 year 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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Queenie
1 year ago
I agree, accessing the database directly is a huge security risk!
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Georgiann
1 year ago
E) Use session from webservice for stateless Authentication R Use JSON Web Tokens(JWT) for stateless Authentication
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Brittni
1 year ago
B) External applications should use API Gateway
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Vincenza
1 year 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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Lettie
1 year ago
That's correct! Using ESB and direct database access are not recommended in microservices architecture.
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Robt
1 year ago
E) Use session from webservice for stateless Authentication R Use JSON Web Tokens(JWT) for stateless Authentication
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Jacquline
1 year ago
B) External applications should use API Gateway
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Lawrence
1 year ago
I agree with you, Lawrence. API Gateway and JWT are essential in Microservices architecture.
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Skye
1 year ago
I think B and E are the correct statements.
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