Alibaba aca-database practice test

Question 1

Which migration modes are supported by DTS (Data Transmission Service)?

• A. From Alibaba Cloud RDS to other database systems
• B. From RDS to an ECS-based database
• C. From a different cloud provider to Alibaba Cloud
• D. From an RDS database, back to itself

Answer:

ABC

Reference:
https://www.alibabacloud.com/help/doc-
detail/59133.htm?spm=a2c63.l28256.b99.3.467e7530gZ9M6o

Question 2

Which of these are NOT good use cases for DTS (Data Transmission Service)? (Number of correct
answers: 2)

• A. Incremental synchronization for disaster recovery
• B. Full database synchronization for database migration
• C. Undoing changes made to a database by mistake
• D. Saving database logs

Answer:

CD

Question 3

Which of the following databases are supported by DTS (Database Transmission Service)? (Number
of correct answers: 3)

• A. MySQL
• B. SQL Server
• C. PostreSQL
• D. DB2

Answer:

ABC

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

Question 4

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

• A. The source and destination database must use the same database engine
• B. The source and destination database must both have a database user which DTS can use
• C. If the source database is not on Alibaba Cloud, it must be Internet accessible so that DTS can connect to it
• D. DTS is designed for file synchronization

Answer:

AD

Question 5

Your DTS (Data Transmission Service) migration has failed halfway through: what options do you
have? (Number of correct answers: 2)

• A. Delete your DTS instance and start over
• B. Restart the migration task from the console
• C. Your database can't be migrated: you need to abandon the migration
• D. You need to switch to ADAM, as DTS cannot complete the migration

Answer:

BD

Question 6

Alibaba Cloud DTS (Data Transmission Service) can only migrate between databases that are hosted
on RDS.

• A. True
• B. False

Answer:

B

Explanation:
Alibaba Cloud Data Transmission Service (DTS) helps you migrate data between data stores, such as
relational databases, NoSQL databases, and data warehouses. You can use DTS to migrate your data
to Alibaba Cloud or between combinations of cloud and on-premises data systems. .
Reference:
https://www.alibabacloud.com/help/doc-
detail/176063.htm?spm=a2c63.p38356.b99.6.2ef8c790WL4Jku

Question 7

Alibaba Cloud DTS (Database Transmission Service) only supports MySQL databases.

• A. True
• B. False

Answer:

B

Reference:
https://www.alibabacloud.com/help/doc-
detail/26618.htm?spm=a2c63.p38356.b99.53.1c2b1156hNo8v0

Question 8

Alibaba Cloud DTS (Data Transmission Service) is a file migration tool.

• A. True
• B. False

Answer:

B

Explanation:
DTS is a data migration, integration, synchronization and change tracking tool.
Reference:
https://www.alibabacloud.com/help/doc-
detail/176063.htm?spm=a2c63.l28256.b99.6.490d7142CiFvPb

Question 9

DTS (Data Transmission Service) must have access to a database user account on both the target and
source database, in order to work.

• A. True
• B. False

Answer:

A

Reference:
https://www.alibabacloud.com/help/doc-
detail/26652.htm?spm=a2c63.p38356.879954.26.2ab232664Wkc2m#concept-xng-n1b-mhb

Question 10

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

• A. True
• B. False

Answer:

A

Reference:
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