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Microsoft

AZ-800 · Question #41

You have an Azure virtual machine named VM1 that runs Windows Server and has the following configurations: Size: D2s_v4 Operating system disk: 127-GiB standard SSD Data disk 128-GiB standard SSD…

The correct answer is C. Changing the virtual machine size only. Changing the VM size (D2s_v4 to D4s_v4) requires deallocating (stopping) the VM, which constitutes downtime. Azure must move the VM to different underlying hardware to accommodate the new size. In contrast, both detaching a data disk and attaching a new standard SSD are…

Manage virtual machines and containers

Question

You have an Azure virtual machine named VM1 that runs Windows Server and has the following configurations:

Size: D2s_v4 Operating system disk: 127-GiB standard SSD Data disk 128-GiB standard SSD Virtual machine generation: Gen 2 You plan to perform the following changes to VM1:

Change the virtual machine size to D4s_v4. Detach the data disk. Add a new standard SSD. Which changes require downtime for VM1?

Options

  • ADetaching the data disk only and adding a new standard SSD.
  • BDetaching the data disk only.
  • CChanging the virtual machine size only.
  • DAdding a new standard SSD only.

How the community answered

(63 responses)
  • A
    3% (2)
  • B
    6% (4)
  • C
    89% (56)
  • D
    2% (1)

Explanation

Changing the VM size (D2s_v4 to D4s_v4) requires deallocating (stopping) the VM, which constitutes downtime. Azure must move the VM to different underlying hardware to accommodate the new size. In contrast, both detaching a data disk and attaching a new standard SSD are hot-swap operations supported on Gen 2 VMs running Windows Server - they can be performed while the VM is running without any downtime. Therefore, only the size change requires downtime.

Topics

#Azure Virtual Machines#VM Lifecycle#Downtime Management#Azure Disk Operations

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