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    PracticeAzure Solutions Architect Expert (AZ-305)Azure Solutions Architect Expert AZ-305 Practice Exam 4Question 41
    Easy1 markMultiple Choice
    Domain 4.1: Design a Compute SolutionComputeApp ServiceDevOps

    AZ-305 · Question 41 · Domain 4.1: Design a Compute Solution

    Your development team is deploying a new version of a mission-critical web application hosted on Azure App Service.

    They require a deployment strategy that allows them to test the new version in the live production environment with 10% of real user traffic. If the new version performs well, they want to seamlessly switch 100% of traffic to it with zero downtime.

    Which Azure App Service feature should you use?

    Answer options:

    A.

    Azure Traffic Manager

    B.

    Deployment Slots

    C.

    App Service Backup and Restore

    D.

    Azure Front Door

    How to approach this question

    Keywords: 'test in live production', '10% of traffic', 'zero downtime swap'. This describes App Service Deployment Slots.

    Full Answer

    B.Deployment Slots✓ Correct
    Azure App Service Deployment Slots are live apps with their own hostnames. You can deploy a new version to a staging slot, use the 'Traffic Routing' feature to send 10% of production traffic to it for A/B testing, and then perform a 'Swap'. The swap changes the IP addresses instantly, resulting in zero downtime.

    Common mistakes

    Thinking you need a complex load balancer like Front Door or Traffic Manager for this. App Service has this capability built-in via slots.
    Question 40All questionsQuestion 42

    Practice the full Azure Solutions Architect Expert AZ-305 Practice Exam 4

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