You are deploying a critical 3-tier application to Azure Virtual Machines in the East US region.

You need to ensure the application remains available even if an entire Azure datacenter loses power or network connectivity. The solution must provide a 99.99% SLA for the virtual machines.

How should you deploy the virtual machines?

Answer options:

Deploy the VMs in a single Availability Set.

Deploy the VMs across multiple Availability Zones.

Deploy the VMs in a Virtual Machine Scale Set with uniform orchestration.

Deploy the VMs using Premium SSDs.

How to approach this question

Match 'datacenter loses power' and '99.99% SLA' to Availability Zones.

Full Answer

B.Deploy the VMs across multiple Availability Zones.✓ Correct

Deploy the VMs across multiple Availability Zones.

Availability Zones are physically separate datacenters within an Azure region. By deploying VMs across multiple Availability Zones, you ensure that a power or network failure in one datacenter does not bring down the entire application. Microsoft provides an industry-leading 99.99% SLA for VMs deployed across two or more Availability Zones.

Common mistakes

Confusing Availability Sets (fault domains within one datacenter) with Availability Zones (separate datacenters).

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

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