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ACA Database Certification

Last Update 19 hours ago Total Questions : 80

The ACA Database Certification content is now fully updated, with all current exam questions added 19 hours ago. Deciding to include ACA-Database practice exam questions in your study plan goes far beyond basic test preparation.

You'll find that our ACA-Database exam questions frequently feature detailed scenarios and practical problem-solving exercises that directly mirror industry challenges. Engaging with these ACA-Database sample sets allows you to effectively manage your time and pace yourself, giving you the ability to finish any ACA Database Certification practice test comfortably within the allotted time.

Question # 4

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

Question # 5

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

A.

No, this type of migration isn't supported

B.

You can migrate between MySQL and Oracle but not between PostgreSQL

C.

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

Question # 6

What is the maximum number of read-only nodes in a PolarDB cluster?

A.

1

B.

5

C.

10

D.

15

Question # 7

PolarDB for MySQL archive databases use log-structured merge-trees (LSM trees) and the Zstandard (ZSTD) data compression algorithm to increase the data compression ratio. How much storage can be saved, at most?

A.

40%

B.

50%

C.

60%

D.

70%

Question # 8

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

A.

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

B.

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

C.

Their database must not include the special DTS compatibility mode

D.

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

Question # 9

Which of the following features determines high performance of the performance-enhanced instances of ApsaraDB for Redis Enhanced Edition (Tair)?

A.

Extended data structure modules

B.

Multithreading

C.

Global Replica

D.

Data flashback

Question # 10

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

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