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