Alibaba ACA-Database Exam Practice Test Instant Access

Question 1

Which of the following data is not collected when database information is collected in Advanced Database & Application Migration (ADAM)?

ABusiness structure data

BHistorical performance data

CDatabase configuration data

DBusiness data

Answer : D

Question 2

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

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

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

CField-level and row-level permissions are supported.

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

Answer : D

Question 3

Which of the following statements about Data Management (DMS) permissions management is NOT true?

AYou can assign different resources and operation permissions to an Alibaba Cloud account as needed.

BYou must create different database accounts for each Alibaba Cloud account.

CYou cannot directly submit changes even if you have permissions to make changes.

DThe permissions of the accounts of resigned or transferred personnel can be automatically managed by using OpenAPI.

Answer : C

Question 4

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

on RDS.

ATrue

BFalse

Answer : B

Alibaba Cloud Data Transmission Service (DTS) helps you migrate data between data stores, such as relational databases, NoSQL databases, and data warehouses. You can use DTS to migrate your data to Alibaba Cloud or between combinations of cloud and on-premises data systems. .

https://www.alibabacloud.com/help/doc-detail/176063.htm?spm=a2c63.p38356.b99.6.2ef8c790WL4Jku

Question 5

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

AAnalyticDB for MySQL is a NoSQL database.

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

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

DAnalyticDB for MySQL supports transactions.

Answer : B

Question 6

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?

A40%

B50%

C60%

D70%

Answer : D

Question 7

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

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

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

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

DApsaraDB 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.

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

Answer : C

Alibaba ACA-Database ACA Database Exam Practice Test