Crucial Exams

Microsoft DevOps Engineer Expert AZ-400 Practice Question

You run a mission-critical web application on Azure App Service. To deploy a new version, you must meet all these requirements: keep the application available to users at all times, avoid exposing partially started instances, and enable an immediate rollback if unexpected errors appear. Which deployment approach satisfies the requirements with the least operational overhead?

  • Disable ARR affinity, scale the App Service Plan to twice the current instance count, and redeploy in place.

  • Enable auto-healing and deploy the new build to the production slot; rely on auto-healing to recycle unhealthy instances.

  • Redeploy the new build directly to the production slot, then restart the App Service with Always On enabled.

  • Deploy the new build to a staging deployment slot, verify health, and perform a VIP swap with the production slot.

Microsoft DevOps Engineer Expert AZ-400
Design and implement build and release pipelines
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