Azure App Service Flashcards
You select to use a Shared App Service plan for Azure App Service. Can you have auto-scaling?
No, auto-scaling is not supported on free, basicor shared plans/tiers
For Azure App Service, you select a Shared App Service plan. Can you use traffic manager?
No, auto-scaling is not supported on free, basic, or shared plans/tiers.
Has the standard savings plan got auto-scaling?
Yes
Has the premium plan got auto-scaling?
Yes
Has the isolated savings plan got auto-scaling?
Yes
What is an access restriction for App Service?
It is the layer 4 IP firewall.
Dose App Service Premium support geo distribution, explain?
Yes, the Premium tier of Azure App Service does support geo-distribution, but it requires a multi-region deployment strategy to enable it. Here’s how it works:
Manual Multi-Region Deployment:
In the Premium tier, you can deploy separate instances of your app in multiple Azure regions manually. Each instance runs independently, providing geo-distribution capabilities.
Traffic Management with Azure Front Door or Traffic Manager:
Use Azure Front Door (for Layer 7 routing) or Azure Traffic Manager (for DNS-based routing) to direct user traffic to the nearest or most available instance.
These tools provide load balancing across regions, and if one region fails, traffic can automatically be routed to another region.
Data Synchronization Across Regions:
Ensure data consistency across geo-distributed applications using services like Azure SQL Database with Active Geo-Replication, Azure Cosmos DB, or other databases with replication capabilities. This keeps data synchronized and accessible across regions.
By deploying the Premium App Service in multiple regions and setting up a global load balancing solution, you can achieve a geo-distributed, highly available application across multiple regions.
If there is a region outage, dose azure provide any failover for app service?
No, Azure App Service itself does not automatically provide failover across regions during a region-wide outage. However, you can design a failover mechanism by combining Azure App Service with Traffic Manager or Front Door.
