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

A.

True

B.

False

From which of the following data sources or databases can Data Lake Analytics (DLA) read data for analysis? (Number of correct answers: 6)

A.

MySQL

B.

Oracle

C.

OTS

D.

MongoDB

E.

AnolyticDB

F.

HOLO

G.

OSS

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?

A.

40%

B.

50%

C.

60%

D.

70%

Your client is having trouble connecting DTS to their source database in their local datacenter, why might this be?

A.

Their database isn't on Alibaba Cloud already so it cannot be accessed by DTS

B.

Their database is not accessible from the Internet, so DTS cannot access it

C.

Their database must not include the special DTS compatibility mode

D.

Their database is an inverted column store, which is not supported

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

A.

Business structure data

B.

Historical performance data

C.

Database configuration data

D.

Business data

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

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.

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

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

Which of the following are reasonable Data Transmission Service (DTS) use cases? (Number of correct answers: 4)

A.

Database migration without interrupting services / downtime

B.

Geo-disaster recovery and active geo-redundancy for databases

C.

Synchronizing data to data warehouses in real time to build data warehouses for real-time analytics.

D.

Configuring data audit rules to manage data quality.

E.

Synchronizing information about user accounts and permissions.

F.

Change tracking and data distribution.

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

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.

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

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