Question

A retail company runs a production web application on Azure App Service (Premium v3 plan). The release team wants to deploy new versions with zero downtime, warm up the application before it receives live traffic, and be able to instantly roll back if the new version misbehaves after going live. Which approach should you recommend?

Accepted Answer

Deploy the new version to a staging deployment slot, validate and warm it up, then perform a slot swap into production—swapping back if issues arise.

Answer

Enable the App Service local cache feature and redeploy the package directly to the production slot during a low-traffic window.

Answer

Scale out the production plan to additional instances, deploy the new package with a manual restart, and monitor instance health.

Answer

Configure Azure Front Door in front of the app and deploy the new version directly to production, relying on WAF rules to block bad requests.