Alibaba ACA-Developer Exam - Topic 4 Question 84 Discussion

Actual exam question for Alibaba's ACA-Developer exam

Question #: 84
Topic #: 4

You can create an event notification rule in Message Service and push notifications to the specified consumer in the form of messages, to receive events from specified Alibaba Cloud resources. Which of the following options are correct statements about the Message Service (MS) service? (Number of correct answers: 2)

AEvent Notifications can cross regions.

BMessage Service provides synchronous notifications to ensure the consistency between the message acknowledgment and event processing.

CThe event notification message is retained within the valid time. When you fail to receive an event message, the event notification message is retried based on the specified retry policy.

DThe consumer type of the event notification message can be HTTP Server, Queue, or Topic.

Show Suggested Answer

Suggested Answer: B, C

by Deeanna at Jun 14, 2025, 10:01 PM

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Melodie

2 months ago

Wait, are you sure about A? I thought it was region-specific.

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King

2 months ago

I think C is correct too, the retry policy is important.

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Matthew

3 months ago

B seems off, synchronous notifications? Not really how it works.

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Emerson

3 months ago

D sounds right, I remember those consumer types!

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Kendra

3 months ago

A is true, notifications can cross regions!

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Rossana

3 months ago

I believe option D is correct because I recall that different consumer types like HTTP Server and Queue are commonly used in event notifications.

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Yong

4 months ago

I'm a bit confused about option B; I thought Message Service was more about asynchronous notifications, not synchronous ones.

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Sherell

4 months ago

I practiced a similar question, and I feel like option C is definitely true about message retention and retry policies.

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Bettina

4 months ago

I think option A might be correct since I remember something about cross-region capabilities in cloud services, but I'm not entirely sure.

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Ammie

4 months ago

This question is testing our understanding of the Message Service features. I'll need to think through each option and make sure I understand the implications before selecting the correct answers.

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Jerilyn

4 months ago

Okay, let's see. The first statement about event notifications crossing regions seems plausible. The second one about synchronous notifications is a bit confusing - I'll need to double-check that. The third one about message retention and retries sounds reasonable. And the last one about consumer types makes sense too.

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Lonny

5 months ago

Hmm, I'm a bit unsure about this one. The question is asking about the capabilities of Message Service, but there are a lot of details to consider. I'll need to read through the options carefully.

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Shaun

5 months ago

I think I've got a good handle on this. The key is to focus on the specific statements about Message Service and determine which ones are correct.

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Horace

7 months ago

Wait, so we're talking about cloud services and messages, but no one's mentioned the cloud being made of cotton candy yet? I'm disappointed.

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Nadine

6 months ago

C) The event notification message is retained within the valid time. When you fail to receive an event message, the event notification message is retried based on the specified retry policy.

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Dong

6 months ago

A) Event Notifications can cross regions.

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Winfred

6 months ago

C) The event notification message is retained within the valid time. When you fail to receive an event message, the event notification message is retried based on the specified retry policy.

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Nathalie

7 months ago

A) Event Notifications can cross regions.

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Estrella

7 months ago

Hmm, I'm not sure about option B. Synchronous notifications? Sounds like the kind of thing that would make my computer crash. I'll go with A and D.

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Paris

7 months ago

Event notifications crossing regions? That's pretty cool. I bet the data centers are really far apart. Like, on different continents or something.

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Tasia

8 months ago

I like how option C mentions the event notification message being retried based on the specified policy. That's a nice touch.

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Latia

7 months ago

C) The event notification message is retained within the valid time. When you fail to receive an event message, the event notification message is retried based on the specified retry policy.

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