Question

Difficulty: MediumCreate and Configure Virtual Machines

An administrator is deploying several Azure virtual machines (VMs) and must configure their storage, boot architecture, and encryption capabilities. How should the administrator match each Azure VM feature on the left with its correct description on the right?

  • Ephemeral OS DiskStores the operating system directly on the local VM node's cache or temporary disk, providing low latency and zero remote disk storage costs.
  • Trusted LaunchProtects the guest operating system against boot-level and kernel-level malware using Secure Boot and a virtual Trusted Platform Module (vTPM).
  • Encryption at HostEncrypts temporary disks, ephemeral OS disks, and OS/data disk caches locally on the VM hosting server before the data flows to Azure Storage.
  • Generation 2 VMEnables a UEFI-based boot architecture, supports OS disks larger than 2 TB, and serves as a prerequisite for advanced hardware-based security features.

Answer

Ephemeral OS Disk matches the description of storing the operating system directly on local storage. Trusted Launch matches the description of protecting against boot/kernel malware via Secure Boot and vTPM. Encryption at Host matches the description of encrypting temp/ephemeral disks and caches on the VM host server. Generation 2 VM matches the description of enabling UEFI boot architecture and supporting OS disks larger than 2 TB.
The correct pairings align the specific capabilities of each feature: Ephemeral OS disks place the OS locally on the host node; Trusted Launch uses UEFI Secure Boot and vTPM for boot-path protection; Encryption at Host encrypts local host caches and temporary disks before sending data to Azure Storage; and Generation 2 VMs implement the UEFI boot architecture which supports disks larger than 2 TB.

Step-by-Step Solution

1
Analyze the Ephemeral OS Disk feature.
Ephemeral OS disks use the local node's SSD/cache storage to host the OS, avoiding remote storage latency and cost, matching the local storage description.
Understanding storage localization and latency benefits of Ephemeral OS disks.
2
Analyze the Trusted Launch feature.
Trusted Launch provides boot-time protection using Secure Boot and vTPM, protecting against bootkits and rootkits, matching the malware protection description.
Identifying VM security features for boot path integrity.
3
Analyze the Encryption at Host setting.
Encryption at Host encrypts caches and temp/ephemeral disks at the physical host level before network transfer to Azure Storage, matching the host-level encryption description.
Distinguishing host-based encryption from storage-service encryption (SSE) or Azure Disk Encryption (ADE).
4
Analyze the Generation 2 VM architecture.
Generation 2 VMs use UEFI instead of BIOS, support larger disks, and are required for Trusted Launch, matching the boot architecture description.
Differentiating VM generation features and boot architecture limitations.

Key Concept

Azure Virtual Machine creation and configuration settings including storage performance, boot architecture, and security enhancements.
Estimated Time:1m 30s
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