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Alibaba ACA-Cloud1 Exam - Topic 2 Question 95 Discussion

Actual exam question for Alibaba's ACA-Cloud1 exam
Question #: 95
Topic #: 2
[All ACA-Cloud1 Questions]

A customer uses Alibaba Cloud Auto Scaling service and creates a scaling group. He/she sets the ''Minimum number of instances'' to 6 and ''Maximum number of instances'' to 8.

After correctly configuring scaling settings, the customer adds a scaling rule ''Adjust to 10 ECS instances'', and creates a scheduled task based on this rule.

And then, the customer checks the scaling group and see it already contains 6 valid ECS instances, he/she then enables this scaling group immediately.

How many ECS instances are left in the scaling group when the scheduled task is activated once?

Show Suggested Answer Hide Answer
Suggested Answer: B

Alibaba Cloud Auto Scaling service allows you to automatically adjust the number of ECS instances in a scaling group based on your business needs and scaling policies.You can set the minimum and maximum number of instances in a scaling group to limit the range of scaling actions1.When you create a scaling rule, you can specify the number of instances to be added or removed, or the expected number of instances after the scaling action2.You can also create a scheduled task to execute a scaling rule at a specified time or periodically3.

In this question, the customer sets the minimum number of instances to 6 and the maximum number of instances to 8 in the scaling group. This means that the scaling group will always have at least 6 instances and at most 8 instances. The customer also adds a scaling rule to remove 5 instances, and creates a scheduled task based on this rule. However, this scaling rule will not be executed if it violates the minimum and maximum limits of the scaling group. Therefore, when the scheduled task is activated once, the scaling group will only remove 2 instances, which is the difference between the current number of instances (8) and the minimum number of instances (6).The remaining number of instances in the scaling group will be 6, which is the correct answer.Reference:1:Create a scaling group - Auto Scaling - Alibaba Cloud Documentation Center2:Create a scaling rule - Auto Scaling - Alibaba Cloud Documentation Center3:Create a scheduled task - Auto Scaling - Alibaba Cloud Documentation Center.


by Michael at Nov 25, 2025, 04:29 AM

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Dean
8 days ago
Definitely B) Ten. Scheduled tasks should add instances.
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Keneth
13 days ago
I feel confused. Why not just add to 6?
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Johnetta
19 days ago
Right, A) Eight is correct. Max is 8.
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Glen
24 days ago
No, it's A) Eight. It can't exceed max limit.
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Benton
29 days ago
I agree, B) Ten makes sense. It scales up.
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Francine
1 month ago
I’m not sure about this one, seems confusing.
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Nobuko
2 months ago
Definitely 8 instances after the task is activated!
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Enola
2 months ago
Wait, how can it go to 10 if the max is 8?
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An
2 months ago
I think it will go up to 10 instances when the task runs.
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Terrilyn
2 months ago
I bet the customer is regretting those scaling settings now. 10 instances? That's a lot of cloud!
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Denise
2 months ago
B) Ten. The question says the scaling rule is to "Adjust to 10 ECS instances", so that's the answer.
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Thaddeus
3 months ago
D) Five. Wait, what? How did you get that?
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Johnetta
3 months ago
C) Six. The scaling group already has 6 instances, so the scheduled task will just add 4 more.
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Melissia
3 months ago
B) Ten. Easy peasy!
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Lynelle
3 months ago
I’m a bit confused about the scheduled task. If it activates and the group is already at 6, does it just add instances until it hits the max? Maybe it’s 8 then?
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Denise
3 months ago
This seems similar to a practice question we did where we had to consider the limits. I feel like the answer is definitely not 10 since the max is 8.
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Carrol
3 months ago
I'm not entirely sure, but I remember something about scaling rules. If the rule says to adjust to 10 instances, wouldn't it just stop at the max of 8?
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Billye
4 months ago
I think the key here is that the scaling group is already at the minimum of 6 instances when the scheduled task runs. So the task shouldn't add any more instances, and the answer should be C) Six.
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Queen
4 months ago
I'm not sure about this one. The question mentions the customer enables the scaling group immediately, so I'm wondering if that changes the outcome. Maybe the answer is A) Eight?
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Larae
4 months ago
The scaling group starts with 6 instances.
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Dottie
4 months ago
I think it's B) Ten. The rule adds more instances.
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Ludivina
4 months ago
I think the scaling group starts with 6 instances, and since the max is 8, it might just add 2 more to reach that limit. So, I guess the answer could be 8?
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Dustin
5 months ago
Okay, let me think this through. The scaling group starts with 6 instances, and the rule is to adjust to 10 instances. So the scheduled task should add 4 more instances, making it 10 in total. I'll go with B) Ten.
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James
5 months ago
I'm a bit confused. If the minimum is 6 and the maximum is 8, how can the scaling rule be to adjust to 10 instances? Shouldn't the answer be C) Six?
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Shelton
5 months ago
Hmm, this seems straightforward. I think I'll go with B) Ten since the question says the scaling rule is to adjust to 10 instances.
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Rebeca
3 days ago
I agree, B) Ten makes sense. The rule is clear.
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