Alibaba Cloud ACA Database Certification ACA-Database Exam Dumps: Updated Questions & Answers (October 2025)

Question # 1

What is the maximum storage size that PolarDB currently provides?

1TB

10TB

50TB

100TB

Question # 2

You are using DTS to migrate from a MySQL database installed on an ECS instance to a target

database on RDS. In the DTS console, which of these is the correct "Instance Type" for the database?

ECS-based Databases

Express Connect DB

RDS Instance

ApsaraDB MongoDB

Question # 3

PolarDB for MySQL uses shared distributed storage and supports dual-zone deployment by default. How many data replicas are available across the two zones?

Question # 4

Alibaba Cloud DTS (Data Transmission Service) is a file migration tool.

True

False

Question # 5

Which of the following is NOT true, regarding the sensitive data management feature provided by Data Management (DMS)?

The rules of field metadata and data content can be automatically recognized.

De-identification algorithms can be managed. Multiple algorithms are supported, such as algorithms for masking specific positions and replacing fixed characters.

Field-level and row-level permissions are supported.

After you configure de-identification algorithms, you can view the de-identified data.

Question # 6

Which of the following features determines high performance of the performance-enhanced instances of ApsaraDB for Redis Enhanced Edition (Tair)?

Extended data structure modules

Multithreading

Global Replica

Data flashback

Question # 7

Which of the following features is NOT supported by Data Transmission Service (DTS)?

Data migration

Data synchronization

Data backup

Change tracking

Question # 8

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

have? (Number of correct answers: 2)

Delete your DTS instance and start over

Restart the migration task from the console

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

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

Question # 9

With ApsaraDB for MyBase, problems caused by a sudden spike in traffic are automatically resolved. How is this done?

ApsaraDB for My Base allows you to deploy different types of instances in a cluster.

ApsaraDB for MyBase grants you host permissions. You can log on to hosts to troubleshoot business problems in an emergency.

ApsaraDB for MyBase supports the over commitment of CPU and disk resources.

ApsaraDB for MyBase supports elastic upgrade policies. If the resource utilization of a database exceeds the preset threshold during a business peak, ApsaraDB for MyBase can automatically upgrade database resource specifications to respond to the business peak.

ApsaraDB for MyBase allows you to specify a host when you create an instance.

Question # 10

Each PolarDB cluster consists of one primary node and one or more read-only nodes. The system only support manually switch over services from the primary node to a read-only node.

True

False

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Alibaba Cloud ACA Database Certification ACA-Database Exam Dumps: Updated Questions & Answers (October 2025)

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