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ACA Database Certification

Last Update 12 hours ago Total Questions : 80

The ACA Database Certification content is now fully updated, with all current exam questions added 12 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

When high availability switchovers occur in a database, which of the following features provided by ApsaraDB RDS for PostgreSQL can prevent the incremental data loss of logical subscriptions?

A.

Ganos

B.

Pase

C.

Slot failover

D.

High concurrency optimization

E.

Point-in-time restore

Question # 5

Which of the following deployment architectures are supported by Alibaba Cloud ApsaraDB for MongoDB? (Number of correct answers: 3)

A.

Standalone instance

B.

Primary/secondary instance that consists of two nodes

C.

Replica set instance that consists of three nodes

D.

Sharded cluster instance

E.

Replica set instance that consists of six nodes

Question # 6

Which of the following types of data that is stored in PostgreSQL databases can support the one-to-many data model? (Number of correct answers: 3)

A.

JSON

B.

Array

C.

String

D.

Cube

E.

Range

F.

JSONB

G.

GIS

Question # 7

If a database exception occurs in a PolarDB cluster because important data is deleted by mistake, how i can data be restored?

A.

Level-2 backup + Redo log

B.

Level 1 backup + Redo log

C.

Level-2 backup

D.

Level-1 backup

Question # 8

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

Question # 9

Which of the following is not a component of the PolarDB-0 architecture in Apsara Stack?

A.

FC Switch

B.

SAN

C.

Proxy

D.

RDMA

Question # 10

Which of the following tools can be used to migrate an on-premises database to Alibaba Cloud while causing minimal service downtime?

A.

pg_dump

B.

pg_restore

C.

pg_upgrade D.DTS

D.

pg_basebackup

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