Free Alibaba ACA-Database Exam Dumps

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Question No: 1

MultipleChoice

Why is ApsaraDB for PolarDB better than other traditional database engines? (The number of answer: 3)

Options

AWhen you purchase a PolarDB cluster, you don't need to specify the storage capacity you want to purchase

BPolarDB supports both OLTP and OLAP scenarios very well

CThe PolarDB database engine won't require you to replicate data when adding read-only nodes

DApsaraDB for PolarDB uses the pay-as-you-go billing method, therefore you only need to pay for the storage resources you actually use

Question No: 2

MultipleChoice

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?

Options

A40%

B50%

C60%

D70%

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