Alibaba ACA-Database Exam Practice Test Instant Access

Question 1

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

ALogical backup

BPhysical backup

CSnapshot backup

DFull backup

Answer : B

Question 2

Which of the following is not a component of the PolarDB-0 architecture in Apsara Stack?

AFC Switch

BSAN

CProxy

DRDMA

Answer : B

Question 3

Which of the following is the lowest recovery point objective (RPO) for Database Backup Service?

ASeconds

BMinutes

CHours

DDays

Answer : B

Question 4

Which of the following is NOT supported by schema migration in Advanced Database & Application Migration (ADAM)?

ARe-migrate all schemas

BRe-migrate the failed schemas

CMigrate the schemas that require a manual revision but have not been revised

DCustomize schema migration

Answer : C

Question 5

Alibaba Cloud DTS (Data Transmission Service) supports both full database migration and incremental synchronization.

ATrue

BFalse

Answer : A

https://www.alibabacloud.com/help/doc-detail/176633.htm?spm=a2c63.p38356.b99.32.3e751a4dtHm9cr / https://www.alibabacloud.com/help/doc-detail/56776.htm?spm=a2c63.p38356.b99.181.74896b5dro6cDo

Question 6

Which of the following statements about the compatibility of AnalyticDB for PostgreSQL is NOT true?

ASupport for the Java Database Connectivity (JDBC) protocol

BSupport for the SQL2003 syntax standard

CCompliance with PostgreSQL and Greenplum protocols

DFully compatible with Oracle syntax

Answer : D

Question 7

What does DIM mean in data warehouse terms?

ADimension table

BOperational data store (ODS)

CCommon data model (CDM)

DApplication data service (ADS)

Answer : A

Alibaba ACA-Database ACA Database Exam Practice Test