Summer Sale Limited Time 65% Discount Offer - Ends in 0d 00h 00m 00s - Coupon code: ecus65

Alibaba Cloud ACA-Database - ACA Database Certification

Alibaba Cloud ACA-Database Premium Access     Download Demo    
Page: 1 / 3
Total 80 questions

PolarDB for MySQL allows you to deploy a cluster across multiple zones. Compared with single-zone clusters, multi-zone clusters have better disaster recovery capabilities and can withstand data centre-level faults.

A.

True

B.

False

Which of the following specifications of AnalyticDB supports tiered storage of cold and hot data?

A.

Basic Edition

B.

C series

C.

S series

D.

Elastic Mode

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 migration modes are supported by DTS (Data Transmission Service)? (Number of correct

answer: 3)

A.

From Alibaba Cloud RDS to other database systems

B.

From RDS to an ECS-based database

C.

From a different cloud provider to Alibaba Cloud

D.

From an RDS database, back to itself

Which of the following types of data that is stored in PostgreSQL databases can support the one-to-many data model? (Number of correct answers: 3)

A.

JSON

B.

Array

C.

String

D.

Cube

E.

Range

F.

JSONB

G.

GIS

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

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.

Which of the following statements about Alibaba Cloud ApsaraDB for MongoDB is true?

A.

It takes a longer time to perform operations and maintenance (O&M) on ApsaraDB for MongoDB instances than on self-installed and self-managed MongoDB.

B.

DataWorks is not supported for MongoDB data processing.

C.

Alibaba Cloud and MongoDB have a strategic partnership, so Alibaba Cloud Is able to provide the latest MongoDB features in our ApsaraDB for MongoDB product, in all our global regions.

DTS (Data Transmission Service) must have access to a database user account on both the target and source database, in order to work.

A.

True

B.

False

Each PolarDB cluster consists of one primary node and one or more read-only nodes. The system only support manually switch over services from the primary node to a read-only node.

A.

True

B.

False

Which of the following are the core technologies behind Database Backup Service? (Number of correct answers: 3)

A.

Multi-cloud and multi-backend backup

B.

Real-time synchronization

C.

High mount speeds (a few seconds)

D.

Online query and analysis