Alibaba ACA-Database Exam Practice Test Instant Access

Question 1

Which of the following are NOT true, regarding DTS (Data Transmission Service)? (Number of correct answers: 2)

AThe source and destination database must use the same database engine

BThe source and destination database must both have a database user which DTS can use

CIf the source database is not on Alibaba Cloud, it must be Internet accessible so that DTS can connect to it

DDTS is designed for file synchronization

Answer : A, D

Question 2

Which database utility is used for data migration and synchronization?

ADMS

BDBS

CDTS

DDAS

EADAM

Answer : C

Data Transmission Service is charged based according to three models: Data Synchronization, Data Migration, Change Tracking.

https://www.alibabacloud.com/product/data-transmission-service/pricing

Question 3

If you have a development team with several developers working on cloud databases, which product is recommended to use for development collaboration?

ADMS

BDBS

CDTS

DDAS

EDG

Answer : A

A series of step-based solutions for R&D processes, data security, and data development are provided in the Data Management (DMS) console to get you started with DMS.

https://www.alibabacloud.com/help/doc-detail/190124.htm?spm=a2c63.p38356.b99.40.6ad93d19Xe9h14

Question 4

Which of the following statements is NOT correct about the benefits you can gain through PolarDB?

ALarge storage space

BElastic scaling within minutes

CWhen you add a read-only node in an ApsaraDB for PolarDB cluster, you only need to pay for computing resources

DMillisecond-level latency in physical replication

Elocked backup

Answer : E

Question 5

Which of the followings is NOT a correct way to connect to PolarDB?

AUse the command line like 'mysql' to connect to a cluster

BUse DMS to connect to a cluster

CUse a client like HeidiSQL to connect to a cluster

DUse PolarDB console to log into a cluster

Answer : D

https://www.alibabacloud.com/help/doc-detail/68511.htm?spm=a2c63.p38356.879954.7.7c2855b1aLLHjb#task-1580301

Question 6

Which of the following are relational databases? (Number of correct answers: 5)

AOracle

BMySQL

CPostgreSQL

DMongoDB

EMariaDB

FRedis

GTSDB

HHBase

ISQL Server

Answer : A, B, C, E, I

Question 7

Which of the following are database architectures which have emerged during the evolution of database systems? (Number of correct answers: 3)

ASingle Instance

BShared Nothing

CShared Everything

DDedicated

Answer : B, C, D

Alibaba ACA Database Exam Practice Test