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Alibaba Cloud ACA-Database - ACA Database Certification

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Page: 3 / 3
Total 80 questions

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

A.

Logical backup

B.

Physical backup

C.

Snapshot backup

D.

Full backup

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

Which of the following is NOT true, regarding DTS (Database Transmission Service)?

A.

DTS cannot be used for incremental database synchronization

B.

DTS supports multiple database engines

C.

DTS can migrate both data and table schema

D.

DTS works for database both on and off Alibaba Cloud

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.