Free Alibaba Cloud ACA-Database Practice Exam with Questions & Answers

Name: How to Pass ACA-Database Exams
Brand: Examstrack
SKU: aca-database
Price: 42 USD
Availability: InStock

Questions 1

Which of the following statements about Data Transmission Service (DTS) migration scenarios is NOT true?

Options:

DTS can migrate data in a circular way, for example, A > B > C > A.

DTS can migrate data from one source database to one destination database, for example, A > B.

DTS can migrate data from one source database to several destination databases, for example, A > B and A > C.

DTS can migrate data from several source databases to one destination database, for example, A > C and B > C.

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Questions 2

Which of the following are database architectures which have emerged during the evolution of database systems? (Number of correct answers: 3)

Options:

Single Instance

Shared Nothing

Shared Everything

Dedicated

Questions 3

When high availability switchovers occur in a database, which of the following features provided by ApsaraDB RDS for PostgreSQL can prevent the incremental data loss of logical subscriptions?

Options:

Ganos

Pase

Slot failover

High concurrency optimization

Point-in-time restore

Questions 4

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

Options:

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.

Questions 5

What does DIM mean in data warehouse terms?

Options:

Dimension table

Operational data store (ODS)

Common data model (CDM)

Application data service (ADS)

Questions 6

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

on RDS.

Options:

True

False

Questions 7

Which of the following are NOT true, regarding DTS (Data Transmission Service)? (Number of correct answers: 2)

Options:

The source and destination database must use the same database engine

The source and destination database must both have a database user which DTS can use

If the source database is not on Alibaba Cloud, it must be Internet accessible so that DTS can connect to it

DTS is designed for file synchronization

Questions 8

Which of the following are relational databases? (Number of correct answers: 5)

Options:

Oracle

MySQL

PostgreSQL

MongoDB

MariaDB

Redis

TSDB

Questions 9

You can purchase more read-only nodes after you have created a cluster. If the primary node fails, the system automatically promotes the read-only node with the highest failover priority to become the new primary node while restoring the faulty node.

Options:

True

False