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    PracticeAzure Fundamentals (AZ-900)Azure Fundamentals AZ-900 Practice Exam 3Question 59
    Medium1 markMultiple Choice
    Domain 2.1: Core Architectural ComponentsDomain 2ArchitectureAvailability ZonesCase Study
    This question is part of a case study — click to read the full scenario(Case 58)

    Scenario: Contoso Ltd is migrating to Azure. They need to host a legacy application on a virtual machine, ensure the VM remains available if a datacenter fails, and track the costs of this specific application separately from other departments.<br/><br/>Which Azure service should Contoso use to host the legacy application?

    View full case study page →

    AZ-900 · Question 59 · Domain 2.1: Core Architectural Components

    Scenario: Contoso Ltd is migrating to Azure. They need to host a legacy application on a virtual machine, ensure the VM remains available if a datacenter fails, and track the costs of this specific application separately from other departments.<br/><br/>How can Contoso ensure the application remains available if a single datacenter fails?

    Answer options:

    A.

    Deploy the VMs in a single Resource Group.

    B.

    Deploy the VMs across multiple Availability Zones.

    C.

    Use Azure ExpressRoute.

    D.

    Apply a CanNotDelete resource lock.

    How to approach this question

    Identify the architectural feature that provides datacenter-level redundancy.

    Full Answer

    B.Deploy the VMs across multiple Availability Zones.✓ Correct
    Availability Zones are physically separate datacenters within an Azure region. By deploying VMs across multiple zones, you ensure that if one datacenter loses power or networking, the VMs in the other zones remain available.

    Common mistakes

    Confusing Availability Zones with Regions. A regional deployment protects against a whole region failing, but AZs specifically target datacenter failures within a region.
    Question 58All questionsQuestion 60

    Practice the full Azure Fundamentals AZ-900 Practice Exam 3

    60 questions · hints · full answers · grading

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