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Difficulty: EasyConfigure VMs for High Availability

AeroSpace Dynamics has a business requirement to deploy three new virtual machines, VM-Flight1, VM-Flight2, and VM-Flight3, in the West US 2 region. The deployment must protect the application from localized hardware failures within a single datacenter while minimizing latency. Which two actions should you perform? (Select two.)

  1. Create a new availability set.Answer
  2. Associate all three virtual machines with the availability set during their deployment.Answer
  3. C
    Associate the virtual machines with the availability set after they have been fully provisioned.
  4. D
    Configure the availability set to span across three availability zones in the West US 2 region.

Answer

Create a new availability set and associate all three virtual machines with the availability set during their deployment.
To protect the virtual machines from localized hardware failures within a single datacenter, the VMs must be grouped into an availability set. The availability set must be created, and the virtual machines must be associated with the availability set during their initial deployment. This ensures that the VMs are distributed across separate physical hardware racks (fault domains) and power/cooling infrastructures.

Step-by-Step Solution

1
Determine the high availability option that protects against localized hardware failures within a single datacenter.
Identify that an availability set is the appropriate solution for localized hardware failures within a single datacenter, whereas availability zones protect against datacenter-wide failures.
An availability set automatically distributes VMs across fault and update domains within a single datacenter to provide 99.95%99.95\% availability SLA.
2
Identify the creation and association rules for availability sets.
Confirm that the availability set must exist first and VMs must be assigned to it during their creation phase.
Azure does not support moving an already deployed VM into an availability set; the VM must be configured with the availability set at launch time.

Key Concept

Azure Availability Sets configuration and constraints
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Topics

Configure VMs for High Availability

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