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Alibaba ACA-DATABASE  Exam Questions & Answers
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Alibaba ACA-DATABASE Exam Questions & Answers


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  • Vendor: Alibaba

    Exam Code: ACA-DATABASE

    Exam Name: Alibaba Cloud Associate Database Certification

    Certification Provider: Alibaba

    Total Questions: 80 Q&A

    Updated on: Jun 09, 2025

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ACA-DATABASE Online Practice Questions and Answers

Questions 1

Which of the following computing capabilities are supported by AnalyticDB? (Number of correct answers: 4)

A. Complex extract, transform, load (ETL)

B. Interactive analysis

C. Simple point query

D. Real-time update

E. Machine Learning

Show Answer

Correct Answer: ABDE

Questions 2

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

Show Answer

Correct Answer: A

Each node in a PolarDB cluster has a failover priority. The system performs the following steps to automatically elect a primary node:

Find all the read-only nodes that can be elected as the primary node. Select one or more read-only nodes that have the highest failover priority. If the failover to the first node fails due to reasons, such as network issues and abnormal

replication status, the system tries to switch to another node until the failover succeeds.

https://www.alibabacloud.com/help/doc-detail/141229.htm?spm=a2c63.p38356.b99.113.36df231dK2DVX0

Questions 3

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

Show Answer More Questions

Correct Answer: ABC

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