Crucial Exams

Microsoft DevOps Engineer Expert AZ-400 Practice Question

You manage a mission-critical .NET API running on Azure App Service. An Azure Pipelines YAML release deploys a new container image nightly to the production slot. Leadership requires that deployments cause zero client downtime and that, if post-deployment health probes fail, the previous version can be restored instantly without performing another build. Which modification to the pipeline will meet these resiliency requirements?

  • Add a Helm upgrade step with the --atomic flag to combine upgrade and automatic rollback.

  • Deploy the image to a staging deployment slot, warm it up, and use the AzureWebApp task to swap the slot with production.

  • Insert tasks that stop the App Service before deployment and start it again after the container image update.

  • Enable Run-From-Package and deploy the ZIP package directly to the production slot.

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