Alibaba ACA-Database Exam Practice Test Instant Access

Question 1

You want to migrate from MySQL to PostgreSQL: is this supported by DTS?

ANo, this type of migration isn't supported

BYou can migrate between MySQL and Oracle but not between PostgreSQL

CYes, migration between different types of databases is supported by DTS

Answer : C

Question 2

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 3

You are using DTS to migrate from a MySQL database installed on an ECS instance to a target

database on RDS. In the DTS console, which of these is the correct "Instance Type" for the database?

AECS-based Databases

BExpress Connect DB

CRDS Instance

DApsaraDB MongoDB

Answer : C

Question 4

Which of the following is NOT true, regarding DTS (Database Transmission Service)?

ADTS cannot be used for incremental database synchronization

BDTS supports multiple database engines

CDTS can migrate both data and table schema

DDTS works for database both on and off Alibaba Cloud

Answer : A

Question 5

You have a client that wants to move from another cloud provider's database service to RDS. Which of these is the best way to move their database to Alibaba Cloud?

AUse DTS (Data Transmission Service)

BMake a full physical backup of their database and copy it into OSS

CThis type of migration isn't possible

DMigrate the entire VM hosting the database

Answer : A

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