Alibaba Exam ACA-Database Topic 6 Question 56 Discussion

Actual exam question for Alibaba's ACA-Database exam

Question #: 56
Topic #: 6

Which of the following statements is NOT correct about PolarDB?

AApsaraDB for PolarDB is a cloud-native relational database service that is compatible with the MySQL, PostgreSQL, and Oracle engines

BEach ApsaraDB for PolarDB cluster supports up to 100 TB of storage space and can handle up to one million queries per second (QPS)

CApsaraDB for PolarDB can scale clusters within a few minutes, recover from failures within a few seconds, and guarantee data consistency

DAn ApsaraDB for PolarDB cluster can also be scaled out to a maximum of 16 nodes, and provide up to 6 times of performance improvement traditional MySQL clusters at a 30% to 50% cost reduction

EApsaraDB for PolarDB is designed to handle large amounts of sequential queries

Show Suggested Answer

Suggested Answer: E

PolarDB is 6 times faster than standard MySQL database in handling large amounts of concurrent queries.

https://www.alibabacloud.com/product/polardb

by Alishia at Apr 13, 2024, 06:58 AM

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Launa

6 months ago

I have to side with Charlie on this one. Option B seems to be the odd one out based on the capabilities of PolarDB that I've read about.

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Eladia

6 months ago

Interesting point, I see your rationale. But I still think option E is the outlier here.

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Denny

6 months ago

I disagree with both of you. I believe that option B is the incorrect statement as PolarDB clusters can support more than 100 TB of storage space.

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Chi

6 months ago

I agree with I believe that PolarDB is not specifically designed for handling large amounts of sequential queries.

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Eladia

6 months ago

I think option E is NOT correct about PolarDB.

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Quentin

6 months ago

I don't think so, option C seems accurate to me. I'm leaning towards option E) ApsaraDB for PolarDB is designed to handle large amounts of sequential queries

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Julieta

7 months ago

But what if the statement about data consistency in option C is incorrect? That could be the answer

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I disagree, I believe the correct answer is D) An ApsaraDB for PolarDB cluster can also be scaled out to a maximum of 16 nodes, and provide up to 6 times of performance improvement traditional MySQL clusters at a 30% to 50% cost reduction

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Julieta

7 months ago

I think the correct answer is B) Each ApsaraDB for PolarDB cluster supports up to 100 TB of storage space and can handle up to one million queries per second (QPS)

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Adelle

8 months ago

Haha, yeah, option E is definitely a trap. PolarDB is a cloud-native relational database, not some specialized sequential query engine.

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Marilynn

8 months ago

Ah, I see. Option E seems a bit suspicious to me. PolarDB is designed to handle all types of queries, not just sequential ones.

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Tamar

8 months ago

I agree with Cordell. Option B just seems too low for the capabilities of PolarDB. I'm going with C as the incorrect statement.

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Cordell

8 months ago

I'm pretty confident that option B is not correct. I've read that PolarDB has a much higher storage capacity and query throughput than that.

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Maybelle

8 months ago

I'm not sure about the answer, but I'm leaning towards option E. What do you guys think?

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Twana

8 months ago

Hmm, this seems like a tricky question. Let me think about this.

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Makeda

7 months ago

I agree. E) is not correct as PolarDB is designed for analytical queries rather than sequential queries

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Yaeko

7 months ago

That's correct. The statement that is NOT correct is E) ApsaraDB for PolarDB is designed to handle large amounts of sequential queries

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Luisa

7 months ago

B) Each ApsaraDB for PolarDB cluster supports up to 100 TB of storage space and can handle up to one million queries per second (QPS)

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Alibaba Exam ACA-Database Topic 6 Question 56 Discussion

Contribute your Thoughts:

Launa

Eladia

Denny

Chi

Eladia

Quentin

Julieta

Malcom

Julieta

Adelle

Marilynn

Tamar

Cordell

Maybelle

Twana

Makeda

Yaeko

Luisa