Which of the below mentioned conditions won’t take advantage of the Multi AZ feature?

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?

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

Explanation:
Amazon RDS when enabled with Multi AZ will handle failovers automatically. Thus, the user can
resume
database operations as quickly as possible without administrative intervention. The primary DB
instance
switches over automatically to the standby replica if any of the following conditions occur:

An Availability Zone outage
The primary DB instance fails
The DB instance’s server type is changed
The DB instance is undergoing software patching
A manual failover of the DB instance was initiated using Reboot with failover