Alibaba ACA-Database Exam - Topic 1 Question 15 Discussion

Actual exam question for Alibaba's ACA-Database exam

Question #: 15
Topic #: 1

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 Laticia at May 09, 2022, 09:27 PM

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5 months ago

PolarDB supports MySQL, PostgreSQL, and Oracle.

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Hmm, I'm a bit confused by the output. It seems to indicate that Shadow Clones are already enabled, but the question is asking how to enable them. I'll need to carefully review the options to make sure I understand the correct action.

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Rocco

5 months ago

This looks like a tricky BPEL question. I'll need to carefully examine the variable values and the Assign1 activity to figure out what changes are needed.

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Heidy

5 months ago

I've got a strategy - I'll read through the options and eliminate the ones that sound like typical steps, then choose the one that's left.

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Sylvie

5 months ago

I thought we practiced scenarios where increased liquidity risk affected debt costs, but I'm not sure if that's relevant here. I should review my notes again on that topic.

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Alibaba ACA-Database Exam - Topic 1 Question 15 Discussion

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