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Alibaba ACA-Operator Exam - Topic 8 Question 90 Discussion

Actual exam question for Alibaba's ACA-Operator exam
Question #: 90
Topic #: 8
[All ACA-Operator Questions]

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)

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Suggested Answer: C, D

by Paulina at Oct 28, 2025, 12:30 PM

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Bette
1 day ago
B seems off to me. Synchronous notifications can be tricky.
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Elly
6 days ago
I agree, but I also like D. Different consumer types are useful.
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Malcom
11 days ago
Totally agree with C! Retained messages save the day.
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Gene
17 days ago
Wait, D allows HTTP Server as a consumer? That's new to me!
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Elbert
22 days ago
C is spot on! Retention based on retry policy is crucial.
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Brice
27 days ago
I think B is misleading. Synchronous notifications? Not really how it works.
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Leota
1 month ago
Gotta love those trick questions! Time to brush up on my Alibaba Cloud knowledge.
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Ryan
1 month ago
Haha, I bet the exam writers were having a field day coming up with these tricky options!
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Felton
1 month ago
B is incorrect. Message Service provides asynchronous notification, not synchronous.
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Thaddeus
2 months ago
I’m pretty confident that the consumer types for event notifications include HTTP Server and Queue, but I’m not sure about Topic.
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Shawnda
2 months ago
I have a vague memory that Message Service does provide synchronous notifications, but I can't recall the details about how that works.
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Lindy
2 months ago
I think I came across a similar question about message retention policies in our practice tests, and I believe option C sounds correct.
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Vincenza
2 months ago
I think A and C are correct. Notifications should work across regions.
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Ettie
2 months ago
C is also correct. The event notification message is retained based on the specified retry policy.
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Fletcher
3 months ago
A and D are correct. I'm pretty sure about that.
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Brittney
3 months ago
A) Event Notifications can cross regions. True!
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Anglea
3 months ago
I remember studying that event notifications can indeed cross regions, but I'm not entirely sure if that's always the case.
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Evette
3 months ago
I'm a bit confused on the specifics of the Message Service. I'll have to review my notes and try to remember the key details about event notifications and message retention policies.
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Wilson
4 months ago
I'm feeling confident about this one. I'm pretty sure event notifications can cross regions, and the consumer types include HTTP Server, Queue, and Topic. So A and D are the correct answers.
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Catrice
4 months ago
Okay, let's see. I know the Message Service can push notifications, so that rules out option B. And I'm pretty sure the messages are retained based on a retry policy, so option C sounds right.
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Lashawnda
4 months ago
Hmm, I think I remember learning about the Message Service in one of my cloud computing classes. Let me think this through...
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Amira
4 months ago
I'm not too sure about the details of the Message Service, but I'll try to break this down step-by-step and see if I can eliminate some of the options.
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Ryan
2 months ago
I think A is correct. Notifications can cross regions.
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