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ACA Database Certification

Last Update 14 hours ago Total Questions : 80

The ACA Database Certification content is now fully updated, with all current exam questions added 14 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 # 11

You can purchase more read-only nodes after you have created a cluster. If the primary node fails, the system automatically promotes the read-only node with the highest failover priority to become the new primary node while restoring the faulty node.

A.

True

B.

False

Question # 12

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 # 13

Which of the following is the most efficient backup in ApsaraDB for MongoDB?

A.

Logical backup

B.

Physical backup

C.

Snapshot backup

D.

Full backup

Question # 14

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

A.

3

B.

4

C.

5

D.

6

Question # 15

Which of the following are reasonable Data Transmission Service (DTS) use cases? (Number of correct answers: 4)

A.

Database migration without interrupting services / downtime

B.

Geo-disaster recovery and active geo-redundancy for databases

C.

Synchronizing data to data warehouses in real time to build data warehouses for real-time analytics.

D.

Configuring data audit rules to manage data quality.

E.

Synchronizing information about user accounts and permissions.

F.

Change tracking and data distribution.

Question # 16

Which of the following are the benefits of database views? (Number of correct answers: 3)

A.

Simplicity for queries

B.

Simplicity in structure: presents the database as a set of virtual tables specific to particular users or groups of users

C.

Easier for data visualization

D.

Stabilization of information: presents a consistent, unchanged image of the database structure

Question # 17

Which of the following statements about MongoDB is NOT true?

A.

MongoDB is a relational database.

B.

MongoDB is a document database.

C.

MongoDB supports transactions.

D.

MongoDB can be deployed in cluster mode.

Question # 18

Which of the following architectures are supported by ApsaraDB for Redis Enhanced Edition (Tair)? (Number of correct answers: 3)

A.

Master-replica architecture in which standard master-replica instances are deployed

B.

Read/write splitting architecture in which standard master-replica instances are deployed

C.

Cluster master-replica instances

D.

Single-node architecture

Question # 19

Which of the following are features supported by Alibaba Cloud RDS for MySQL? (The number of

Question # 20

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

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