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    PracticeAzure Solutions Architect Expert (AZ-305)Azure Solutions Architect Expert AZ-305 Practice Exam 4Question 39
    Medium1 markMultiple Choice
    Domain 3.2: Design for High AvailabilityHigh AvailabilityNetworkingApplication Gateway

    AZ-305 · Question 39 · Domain 3.2: Design for High Availability

    You are designing a highly available architecture for an internal web application.

    The application is hosted on Azure Virtual Machines spread across three Availability Zones in the West Europe region. You need to deploy an Azure Application Gateway to load balance traffic to these VMs. The Application Gateway itself must survive a zone failure.

    Which TWO configurations are required for the Application Gateway? (Select TWO)

    Answer options:

    A.

    Use the v1 SKU of Application Gateway.

    B.

    Use the v2 SKU of Application Gateway.

    C.

    Select multiple Availability Zones during deployment.

    D.

    Deploy a separate Application Gateway in each Availability Zone.

    E.

    Configure Azure Traffic Manager to route to the Application Gateway.

    How to approach this question

    Identify the SKU that supports modern features (v2) and the action required to enable zone redundancy (selecting zones).

    Full Answer

    To ensure the Azure Application Gateway survives a zone failure, you must use the v2 SKU (Standard_v2 or WAF_v2), as the older v1 SKU does not support zone redundancy. During deployment, you must explicitly select multiple Availability Zones (e.g., Zones 1, 2, and 3). Azure will then automatically distribute the gateway instances across those zones.

    Common mistakes

    Thinking you need multiple Application Gateways. A single v2 instance can be zone-redundant.
    Question 38All questionsQuestion 40

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

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