Discuss Alibaba ACA-Database Exam Topic 1 Question 15

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

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

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9 comments · newest first

Beatriz 12 months ago

16 nodes max? That seems limiting for big projects.

Boris 1 year ago

Scaling in minutes is impressive!

Anabel 1 year ago

Wait, can it really handle a million QPS? Sounds too good to be true.

Gladys 1 year ago

I agree, it's super versatile!

Marge 1 year ago

PolarDB supports MySQL, PostgreSQL, and Oracle.

Hollis 1 year ago

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.

Rocco 1 year 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.

Heidy 1 year 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.

Sylvie 1 year 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.

Alibaba ACA-Database Exam - Topic 1 Question 15 Discussion