A line-of-business application consists of a web/API tier on Azure App Service and a data tier on Azure SQL Database. The business requires an RPO of 5 minutes and an RTO of 15 minutes in case of a regional outage. What should you implement to meet these objectives?

The correct option meets the RPO and RTO requirements. Azure SQL Database auto-failover groups provide automatic replication and failover with a 5-minute RPO and RTO typically under 60 seconds, well within the 15-minute RTO. Deploying App Service in both regions ensures application availability. Azure Front Door, with health probes and automatic failover, directs traffic to the healthy region, providing a global, highly available entry point. Incorrect options: Azure Backup with hourly backups would not meet the 5-minute RPO. Restoring App Service and database on demand would exceed the 15-minute RTO. Azure Site Recovery does not directly support Azure App Service or Azure SQL Database for replication in this manner. Manual active geo-replication for SQL Database requires manual failover, which would likely exceed the 15-minute RTO. Azure Traffic Manager provides DNS-based routing but doesn't handle the database failover itself. Availability Zones protect against datacenter failures within a region, but not against a complete regional outage, which is specified in the requirement.