What should you implement to meet the disaster recovery requirements for the PaaS solution?

What should you implement to meet the disaster recovery requirements for the PaaS solution?
A . Availability Zones
B . failover groups
C . Always On availability groups
D . geo-replication

View Answer

Answer: B

Explanation:

Scenario: In the event of an Azure regional outage, ensure that the customers can access the PaaS solution with minimal downtime. The solution must provide automatic failover.

The auto-failover groups feature allows you to manage the replication and failover of a group of databases on a server or all databases in a managed instance to another region. It is a declarative abstraction on top of the existing active geo-replication feature, designed to simplify deployment and management of geo-replicated databases at scale. You can initiate failover manually or you can delegate it to the Azure service based on a user-defined policy.

The latter option allows you to automatically recover multiple related databases in a secondary region after a catastrophic failure or other unplanned event that results in full or partial loss of the SQL Database or SQL Managed Instance availability in the primary region.

Reference: https://docs.microsoft.com/en-us/azure/azure-sql/database/auto-failover-group-overview