Alibaba ACA-Database Exam Questions Instant Access

Question 1

PolarDB for MySQL uses shared distributed storage and supports dual-zone deployment by default. How many data replicas are available across the two zones?

Answer : D

Question 2

Which of the following statements about Data Management (DMS) permissions management is NOT true?

AYou can assign different resources and operation permissions to an Alibaba Cloud account as needed.

BYou must create different database accounts for each Alibaba Cloud account.

CYou cannot directly submit changes even if you have permissions to make changes.

DThe permissions of the accounts of resigned or transferred personnel can be automatically managed by using OpenAPI.

Answer : C

Question 3

Suppose you are using MySQL currently, if you want to migrate to cloud native database PolarDB with little effort, which one is the best choice?

APolarDB MySQL

BPolarDB PosgreSQL

CPolarDB Oracle

DPolarDB Box

Answer : A

https://www.alibabacloud.com/help/doc-detail/58768.htm?spm=a2c63.l28256.b99.10.71ce3784cXj0y8

Question 4

Your client is having trouble connecting DTS to their source database in their local datacenter, why might this be?

ATheir database isn't on Alibaba Cloud already so it cannot be accessed by DTS

BTheir database is not accessible from the Internet, so DTS cannot access it

CTheir database must not include the special DTS compatibility mode

DTheir database is an inverted column store, which is not supported

Answer : B

Question 5

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 6

Which type of the following logs is used to synchronize data between primary and secondary databases in RDS for MySQL?

ARedo log

BRollback log

CBinary log

DError log

Answer : C

Question 7

What is the maximum storage size that PolarDB currently provides?

A1TB

B10TB

C50TB

D100TB

Answer : D

Alibaba ACA Database ACA-Database Exam Questions