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Alibaba Exam ACA-Database Topic 8 Question 71 Discussion

Actual exam question for Alibaba's ACA-Database exam
Question #: 71
Topic #: 8
[All ACA-Database Questions]

PolarDB for MySQL uses shared distributed storage and supports dual-zone deployment by default. How many data replicas are available across the two zones?

Show Suggested Answer Hide Answer
Suggested Answer: B

DTS is a data migration, integration, synchronization and change tracking tool.


https://www.alibabacloud.com/help/doc-detail/176063.htm?spm=a2c63.l28256.b99.6.490d7142CiFvPb

by Marla at Sep 18, 2024, 08:39 PM

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Gabriele
1 months ago
Ha! I bet the answer is 'D' just to throw us off. PolarDB is probably feeling a bit 'polar' today, with all those extra data replicas.
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Candra
7 days ago
I'm pretty sure it's 'B', not 'D'.
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Noemi
9 days ago
I think it's actually 'C', not 'D'.
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Rickie
9 days ago
User 1: I think the answer is 'A'.
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Lacresha
1 months ago
Wait, is this a trick question? I thought PolarDB was all about simplicity and efficiency. Maybe the answer is 'B' for a nice, even number of replicas.
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Jame
1 days ago
I agree, 'B' sounds like the right choice.
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William
7 days ago
I think the answer is 'B' for 4 replicas.
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Keena
1 months ago
Four data replicas? That's a lot of backups! I bet that helps with reliability, but it's probably not the most cost-effective solution.
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Caprice
2 months ago
Hmm, this sounds like a trick question. I'm going to go with 'C' just to be safe.
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Lashandra
16 days ago
I'm going with 'A', it seems like the right choice.
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Marya
19 days ago
I think I'll go with 'D' just to be sure.
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Willow
2 months ago
That's a good point, Asha. Maybe having more replicas with option B) 4 would indeed be more beneficial for dual-zone deployment.
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Asha
2 months ago
I disagree, I believe the answer is B) 4. Having more replicas across two zones would provide better fault tolerance.
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Willow
2 months ago
I think the answer is A) 3 because it makes sense to have an odd number of data replicas for redundancy.
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