Alibaba ACA-Database Exam - Topic 3 Question 33 Discussion

Actual exam question for Alibaba's ACA-Database exam

Question #: 33
Topic #: 3

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?

A40%

B50%

C60%

D70%

Show Suggested Answer

Suggested Answer: D

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

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Bernardine

5 months ago

Really? 70% seems too high to me.

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Avery

6 months ago

Definitely 70%, LSM trees are super efficient!

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Ashlyn

6 months ago

60% sounds about right, but I'm not sure.

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Shayne

6 months ago

No way, I thought it was only 50%.

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Aliza

6 months ago

I heard it can save up to 70%!

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Herminia

6 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

6 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

6 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

6 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

7 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

7 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

7 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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