Alibaba ACA-Cloud1 Exam - Topic 8 Question 102 Discussion

Actual exam question for Alibaba's ACA-Cloud1 exam

Question #: 102
Topic #: 8

[All ACA-Cloud1 Questions]

Which of the following scenarios is applicable to use RDS read-only instances?

AReduces the write pressure on the RDS primary instance.

BReduces the read pressure on the RDS primary instance.

CImplements data backtracking for the last two days.

DImproves RDS storage capabilities.

Show Suggested Answer

Suggested Answer: B

ApsaraDB RDS for MySQL is a cloud-based relational database service that provides secure, cost-effective, and scalable database solutions for various applications. RDS for MySQL supports creating read-only instances that are synchronized with the primary instance in real time. Read-only instances can handle read requests from applications and reduce the read pressure on the primary instance. This can improve the performance and availability of the database system. Read-only instances can also be used for scenarios such as report analysis, data backup, and disaster recovery.

Overview of read-only ApsaraDB RDS for MySQL instances

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by Denise at May 14, 2026, 08:35 AM

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Kattie

20 hours ago

I think read-only instances are mainly about reducing the read pressure on the primary instance, so I’d go with B.

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