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AZ-104 · Question #835

You have an Azure subscription that contains the following resources: - A virtual machine named VM1 that runs Windows Server 2022 Datacenter: Azure Edition - An Azure key vault named KV1 You need to c

The correct answer is A. Create a key that has a 4096-bit length.. To configure Azure Disk Encryption (ADE) for a Windows Server 2022 VM with a Key Encryption Key (KEK) from Azure Key Vault, first, enable ADE access in your Key Vault's access policies; then, create a KEK (RSA 3072/4096-bit for Win 2022) within that vault; and finally, use Azure

Submitted by obi.ng· Mar 4, 2026Manage identities and governance

Question

You have an Azure subscription that contains the following resources: - A virtual machine named VM1 that runs Windows Server 2022 Datacenter: Azure Edition - An Azure key vault named KV1 You need to configure Azure Disk Encryption to use a key encryption key (KEK). What should you do first?

Options

  • ACreate a key that has a 4096-bit length.
  • BCreate a key rotation policy.
  • CCreate a certificate in KV1.
  • DCreate a key that has a 2048-bit length.

How the community answered

(21 responses)
  • A
    86% (18)
  • B
    10% (2)
  • D
    5% (1)

Explanation

To configure Azure Disk Encryption (ADE) for a Windows Server 2022 VM with a Key Encryption Key (KEK) from Azure Key Vault, first, enable ADE access in your Key Vault's access policies; then, create a KEK (RSA 3072/4096-bit for Win 2022) within that vault; and finally, use Azure CLI/PowerShell to apply ADE to the VM, specifying the KEK's details during the process, ensuring your VM/Key Vault are in the same region and have correct network access if using Step 1: Configure Key Vault Access Step 2: Create the Key Encryption Key (KEK) You need a 4096-bit KEK (Key Encryption Key) for Azure Disk Encryption with Windows Server 2022 Datacenter: Azure Edition because that newer OS version and its integrated BitLocker require stronger, larger keys, as 2048-bit RSA keys are now considered insufficient or unsupported for this specific scenario, forcing a move to 3072 or 4096-bit keys for compatibility and enhanced security. https://learn.microsoft.com/en-us/answers/questions/5552951/issue-enabling-disk-encryption-on- windows-server-2

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