Question

Difficulty: Very hardCreate and Configure Virtual Machines

An administrator is designing several Azure Virtual Machine (VM) deployments with specific performance, latency, and backup requirements. Match each Azure VM feature or configuration option to its primary technical constraint or characteristic.

  • Ephemeral OS DiskStored on the local VM cache or temporary storage and does not support Azure Backup.
  • Ultra DiskMust be deployed within an Availability Zone and cannot be used as a virtual machine OS disk.
  • Proximity Placement GroupA logical grouping capability used to physically colocate VM resources within the same data center to reduce network latency.
  • Custom Script ExtensionExecutes post-deployment scripts inside the guest OS, with a strict execution limit of 90 minutes before timing out.

Answer

Ephemeral OS Disk matches local storage without Azure Backup support; Ultra Disk matches the requirement to be deployed in an Availability Zone and restricted from OS disk usage; Proximity Placement Group matches physically colocating VM resources to reduce network latency; Custom Script Extension matches post-deployment scripts with a 90-minute timeout.
The correct matches represent standard characteristics and boundaries defined by Azure: Ephemeral OS disks operate on local VM cache/temp disks without Azure Backup support; Ultra Disks are data-only and require an Availability Zone; Proximity Placement Groups physically colocate VMs to minimize latency; and Custom Script Extensions timeout after 90 minutes.

Step-by-Step Solution

1
Analyze Ephemeral OS Disk requirements.
Confirm Ephemeral OS disks are stored locally on the VM's cache or temp disk and do not support Azure Backup.
Identify the primary storage location and service restrictions of ephemeral storage.
2
Analyze Ultra Disk requirements.
Confirm Ultra Disks are data-only disks and require placement within an Availability Zone.
Identify the architectural placement and OS constraints of Ultra Disks.
3
Analyze Proximity Placement Group purpose.
Determine that PPGs physically colocate VMs within the same region or data center.
Differentiate between geographical separation features and latency minimization tools.
4
Analyze Custom Script Extension constraints.
Identify the 90-minute execution timeout threshold for VM extension scripts.
Examine script execution limits and failure states for Azure VM extensions.

Key Concept

Azure VM storage, latency optimization, and extension capabilities during deployment.
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