Alibaba Cloud Certified Associate – Cloud Computing — Question 4

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

Answer options

• A. Reduces the write pressure on the RDS primary instance.
• B. Reduces the read pressure on the RDS primary instance.
• C. Implements data backtracking for the last two days.
• D. Improves RDS storage capabilities.

Correct answer: B

Explanation

The correct answer, B, is accurate because RDS read-only instances are specifically designed to handle read requests, which alleviates the load on the primary instance. Option A is incorrect as read-only instances do not directly reduce write pressure. Options C and D do not relate to the primary purpose of read-only instances, which is to optimize read operations.