AWS DevOps Engineer Professional DOP-C01 – Question406

Which of these is not a reason a Multi-AZ RDS instance will failover?

A. An Availability Zone outage
B. A manual failover of the DB instance was initiated using Reboot with failover
C. To autoscale to a higher instance class
D. The primary DB instance fails

Correct Answer: C

Explanation:

Explanation:
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 operating system of the DB instance is, undergoing software patching, a manual failover of the DB instance was initiated using Reboot with failover.
Reference:
http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Concepts.Mult…