AWS Certified SysOps Administrator – Associate (legacy) — Question 304

A user is planning to set up the Multi AZ feature of RDS. Which of the below mentioned conditions won't take advantage of the Multi AZ feature?

Answer options

• A. Availability zone outage
• B. A manual failover of the DB instance using Reboot with failover option
• C. Region outage
• D. When the user changes the DB instance's server type

Correct answer: C

Explanation

Amazon RDS Multi-AZ replication is designed for high availability within a single AWS Region across multiple Availability Zones. It automatically handles AZ outages, manual reboots with failover, and scaling of instance classes by utilizing the standby replica. However, because Multi-AZ replication is strictly confined to a single Region, it cannot mitigate or protect against a full Region outage.