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Alibaba ACP-Cloud1 Exam - Topic 8 Question 80 Discussion

Which of the following is not a potential cause of latency on an RDS read-only instance?
B) There exists significant load on the ECS that is connected to this read-only instance.
A) The load on this read-only instance is significant.
C) The specification of this read-only instance is too low.
D) This read-only instance's master instance is performing a lot of write operations.

Alibaba ACP-Cloud1 Exam - Topic 8 Question 80 Discussion

Actual exam question for Alibaba's ACP-Cloud1 exam
Question #: 80
Topic #: 8
[All ACP-Cloud1 Questions]

Which of the following is not a potential cause of latency on an RDS read-only instance?

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Suggested Answer: B

Latency on an RDS read-only instance can be caused by high loads on the instance itself, inadequate instance specifications, or excessive write operations on the master instance, as these factors directly impact replication delay and resource contention. However, a high load on the ECS instance connected to the RDS read-only instance would not inherently cause latency on the RDS instance, as the ECS and RDS operate independently in terms of processing.


by Glendora at Mar 18, 2025, 08:50 PM

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Martina
5 months ago
I disagree with D; it shouldn't impact read-only performance.
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Lynette
5 months ago
A low spec instance can totally cause issues, so C makes sense.
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Claudio
5 months ago
Wait, how can the master instance affect a read-only one?
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Renea
5 months ago
I think D is the right answer here.
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Catalina
5 months ago
I’m leaning towards C because if the instance specs are low, it could cause latency, but I’m not completely confident.
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Johanna
6 months ago
I practiced a similar question last week, and I feel like the load on the read-only instance itself is definitely a factor, so maybe it's A?
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Lawrence
6 months ago
Option B is definitely a cause of latency.
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Anika
6 months ago
I think option B might be the right answer since the ECS load shouldn't directly affect the read-only instance.
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Whitley
6 months ago
I'm not entirely sure, but I remember something about how the master instance's writes can impact latency. Could it be D?
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Wei
6 months ago
I've got this! The read-only instance's master instance performing a lot of write operations is not a potential cause of latency on the read-only instance. That's the one that doesn't fit.
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Teddy
7 months ago
Okay, let's see. The load on the read-only instance itself is a potential cause, as is the load on the connected ECS. The instance specification could also be a factor. I'll need to carefully consider each option.
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Pok
7 months ago
Hmm, I'm not entirely sure about this. I'll need to review my notes on RDS read-only instances and their potential performance issues.
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Heike
7 months ago
This is a tricky one. I'll need to think through the potential causes of latency on an RDS read-only instance.
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Antione
7 months ago
Ah, I see now. The specification of the read-only instance being too low is the only one that's not a potential cause of latency. Gotta pay attention to those negatives!
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Dierdre
7 months ago
I think I've got it. The load on the ECS connected to the read-only instance is a potential cause, but the master instance's write operations shouldn't be, since this is a read-only instance.
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Santos
8 months ago
I'm a bit confused by the wording of the question. Is the "not a potential cause" part the key here?
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Graciela
8 months ago
Okay, let's see. The load on the read-only instance itself is a potential cause, but what about the other options?
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Gerri
8 months ago
Hmm, this one seems tricky. I'll need to think through the potential causes of latency on an RDS read-only instance.
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Wenona
1 year ago
I think the answer is C because if the specification is too low, it could cause latency issues regardless of other factors.
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Ettie
1 year ago
I'm stumped on this one. Maybe I should have read the RDS documentation more closely...
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Domonique
1 year ago
B) There exists significant load on the ECS that is connected to this read-only instance.
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Terrilyn
1 year ago
A) The load on this read-only instance is significant.
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Luis
1 year ago
Ha! This question is a real 'page-turner'! I'm going to guess A. Significant load on the read-only instance itself seems like the most obvious cause of latency.
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Mike
1 year ago
C could also be a factor. If the specification of the read-only instance is too low, it might struggle to keep up.
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Lashon
1 year ago
I agree with you, A seems like the most likely cause of latency on the read-only instance.
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Idella
1 year ago
I'm going with D. If the master instance is doing a lot of writes, that could slow things down.
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Wilda
1 year ago
I think it's B. The load on the ECS could definitely be causing latency.
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Rhea
1 year ago
But if the master instance is doing a lot of writes, wouldn't that affect the read-only instance's latency?
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Alexis
1 year ago
I disagree, I believe the answer is D.
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Corrina
1 year ago
This is a tricky one, but I'm going to say C. If the instance specs are too low, that could definitely lead to latency.
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Glory
1 year ago
I'm going to go with D. If the master instance is doing a lot of write ops, that could definitely impact the read-only instance.
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Rhea
1 year ago
I think the answer is B.
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Youlanda
1 year ago
Hmm, I think the answer is B. The load on the ECS connected to the read-only instance could definitely cause latency.
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Leeann
1 year ago
I'm not sure, but I think it could also be D. The master instance performing a lot of write operations might also cause latency.
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Daron
1 year ago
I agree, the load on the ECS could definitely be a potential cause of latency.
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Eden
1 year ago
I think the answer is B. The load on the ECS connected to the read-only instance could definitely cause latency.
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