Alibaba ACA-Database Exam Practice Test Instant Access

Question 1

Which of the following databases are supported by DTS (Database Transmission Service)? (Number

of correct answers: 3)

AMySQL

BSQL Server

CPostreSQL

DDB2

Answer : A, B, C

https://www.alibabacloud.com/help/doc-detail/176064.htm?spm=a2c63.l28256.b99.7.13c27142yYyvXz

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 statements about MongoDB is NOT true?

AMongoDB is a relational database.

BMongoDB is a document database.

CMongoDB supports transactions.

DMongoDB can be deployed in cluster mode.

Answer : A

Question 4

Which of the following computing capabilities are supported by AnalyticDB? (Number of correct answers: 4)

AComplex extract, transform, load (ETL)

BInteractive analysis

CSimple point query

DReal-time update

EMachine Learning

Answer : A, B, D, E

Question 5

Which of the following is the wrong statement about PolarDB design architecture?

AA PolarDB cluster contains one primary instance and up to 15 read-only instances

BPolarDB consolidate compute processes and storage processes in one box, allowing the database capacity to scale up and down to meet your
application needs in Alibaba Cloud

CRead/write splitting is enabled for PolarDB clusters by default, providing transparent, highly available, and self-adaptive load balancing for your
database

DHigh speed network connection is enabled between the DB server and the chunk server, and data are transferred using the Remote Direct Memory Access (RDMA) protocol

Answer : B

https://www.alibabacloud.com/help/doc-detail/58766.htm?spm=a2c63.p38356.b99.11.4e333181dMpFmV

Question 6

Which of the following are the advantages of cloud databases over self-managed databases? (Number of correct answers: 3)

AStronger service level agreement (SLA)

BIntegrated operations and maintenance (O&M), as well as easier management

CHigh availability and comprehensive backup and monitoring capabilities

DHigh costs

Answer : A, B, C

Question 7

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

Alibaba ACA Database ACA-Database Exam Practice Test