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Alibaba Cloud ACA-Database Dumps

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Total 80 questions
Get ACA-Database Full Access Download ACA-Database PDF

ACA Database Certification Questions and Answers

Question 1

Which of the following deployment architectures are supported by Alibaba Cloud ApsaraDB for MongoDB? (Number of correct answers: 3)

Options:

A.

Standalone instance

B.

Primary/secondary instance that consists of two nodes

C.

Replica set instance that consists of three nodes

D.

Sharded cluster instance

E.

Replica set instance that consists of six nodes

Question 2

Which of the following are the benefits of database views? (Number of correct answers: 3)

Options:

A.

Simplicity for queries

B.

Simplicity in structure: presents the database as a set of virtual tables specific to particular users or groups of users

C.

Easier for data visualization

D.

Stabilization of information: presents a consistent, unchanged image of the database structure

Question 3

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

Options:

A.

True

B.

False

Question 4

Which of the following computing capabilities are supported by AnalyticDB? (Number of correct answers: 4)

Options:

A.

Complex extract, transform, load (ETL)

B.

Interactive analysis

C.

Simple point query

D.

Real-time update

E.

Machine Learning

Question 5

lf Oracle databases need to be migrated to Alibaba Cloud, which of the following product solutions :an be recommended? (Number of correct answers: 3)

Options:

A.

Use PolarDB-0 that is highly compatible with Oracle.

B.

Use Advanced Database & Application Migration (ADAM) to evaluate the migration project.

C.

Use ApsaraDB for Redis as a cache service to provide acceleration capabilities.

D.

Use Data Transmission Service (DTS) to migrate data.

Question 6

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:

A.

True

B.

False

Question 7

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

Options:

A.

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

B.

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

C.

Field-level and row-level permissions are supported.

D.

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

Question 8

Which of the following is the most efficient backup in ApsaraDB for MongoDB?

Options:

A.

Logical backup

B.

Physical backup

C.

Snapshot backup

D.

Full backup

Question 9

If you have a development team with several developers working on cloud databases, which product is recommended to use for development collaboration?

Options:

A.

DMS

B.

DBS

C.

DTS

D.

DAS

E.

DG

Question 10

Which of the following statements is NOT correct about PolarDB?

Options:

A.

ApsaraDB for PolarDB is a cloud-native relational database service that is compatible with the MySQL, PostgreSQL, and Oracle engines

B.

Each ApsaraDB for PolarDB cluster supports up to 100 TB of storage space and can handle up to one million queries per second (QPS)

C.

ApsaraDB for PolarDB can scale clusters within a few minutes, recover from failures within a few seconds, and guarantee data consistency

D.

An 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

E.

ApsaraDB for PolarDB is designed to handle large amounts of sequential queries

Question 11

Which of the following statements about AnalyticDB for MySQL is true?

Options:

A.

AnalyticDB for MySQL is a NoSQL database.

B.

AnalyticDB for MySQL can be used to build enterprise-grade data warehouse projects.

C.

AnalyticDB for MySQL can be used to build online transaction systems.

D.

AnalyticDB for MySQL supports transactions.

Question 12

Alibaba Cloud DTS (Database Transmission Service) only supports MySQL databases.

Options:

A.

True

B.

False

Page: 1 / 3
Total 80 questions
Get ACA-Database Full Access Download ACA-Database PDF