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Alibaba ACA-Database Exam - Topic 3 Question 33 Discussion

PolarDB for MySQL archive databases use log-structured merge-trees (LSM trees) and the Zstandard (ZSTD) data compression algorithm to increase the data compression ratio. How much storage can be saved, at most?
D) 70%
A) 40%
B) 50%
C) 60%

Alibaba ACA-Database Exam - Topic 3 Question 33 Discussion

Actual exam question for Alibaba's ACA-Database exam
Question #: 33
Topic #: 3
[All ACA-Database Questions]

PolarDB for MySQL archive databases use log-structured merge-trees (LSM trees) and the Zstandard (ZSTD) data compression algorithm to increase the data compression ratio. How much storage can be saved, at most?

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Suggested Answer: D

by Stephen at Nov 18, 2022, 04:17 PM

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Bernardine
7 months ago
Really? 70% seems too high to me.
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Avery
7 months ago
Definitely 70%, LSM trees are super efficient!
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Ashlyn
7 months ago
60% sounds about right, but I'm not sure.
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Shayne
8 months ago
No way, I thought it was only 50%.
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Aliza
8 months ago
I heard it can save up to 70%!
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Herminia
8 months ago
I vaguely remember a discussion about ZSTD and its efficiency, but I can't confidently say if it's 70% or lower.
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Charlena
8 months ago
I feel like I saw somewhere that LSM trees can help with compression, but I can't recall the maximum storage savings. Maybe it's 60%?
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Shawana
8 months ago
I think I practiced a question similar to this, and I want to say it was around 50% storage savings, but I could be mixing it up.
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Kaitlyn
8 months ago
I remember reading that Zstandard can achieve high compression ratios, but I'm not sure about the exact percentage for PolarDB.
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Renato
8 months ago
Ah, I've seen this type of question before. I've got a good strategy for working through these.
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Lorita
8 months ago
Hmm, I'm a bit confused by the terminology here. I'll need to review my notes on TDTM and trigger handlers.
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Maryanne
8 months ago
I remember reading that Cisco Tetration can identify unusual user behaviors, but I'm not sure which specific pattern it focuses on.
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