Authentic Alibaba ACA-Database Exam Dumps

Question No: 1

MultipleChoice

Your DTS (Data Transmission Service) migration has failed halfway through: what options do you

have? (Number of correct answers: 2)

Options

ADelete your DTS instance and start over

BRestart the migration task from the console

CYour database can't be migrated: you need to abandon the migration

DYou need to switch to ADAM, as DTS cannot complete the migration

Question No: 2

MultipleChoice

Alibaba Cloud DTS (Data Transmission Service) can only migrate between databases that are hosted

on RDS.

Options

ATrue

BFalse

Question No: 3

MultipleChoice

Which of the following specifications of AnalyticDB supports tiered storage of cold and hot data?

Options

ABasic Edition

BC series

CS series

DElastic Mode

Question No: 4

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: 5

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%

Free Alibaba ACA-Database Exam Dumps June 2026