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A company plans to enable Azure Disk Encryption (ADE) on a fleet of Windows virtual machines. They want to use a key stored in Azure Key Vault to encrypt the disks. Which additional access configuration must be made in the Key Vault to allow ADE to succeed?

Question 1hardmultiple choice
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A company plans to enable Azure Disk Encryption (ADE) on a fleet of Windows virtual machines. They want to use a key stored in Azure Key Vault to encrypt the disks. Which additional access configuration must be made in the Key Vault to allow ADE to succeed?

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Answer choices

Why each option matters

Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.

A

Best answer

Grant the Azure Disk Encryption service principal (Microsoft.Azure.Security) appropriate key permissions in the Key Vault access policy.

ADE relies on the Azure Disk Encryption service principal to access the encryption key. You must grant this principal the 'get', 'wrapKey', and 'unwrapKey' permissions in the access policy.

B

Distractor review

Assign a managed identity to each VM and grant that identity key permissions in the Key Vault.

While managed identities are used with newer encryption options (e.g., encryption at host), classic ADE does not use the VM's managed identity; it uses the Azure Disk Encryption service principal.

C

Distractor review

Enable soft-delete and purge protection on the Key Vault.

Soft-delete and purge protection are recommended to prevent accidental key deletion, but they are not prerequisites for the encryption process to work.

D

Distractor review

Assign the 'Key Vault Contributor' RBAC role to the Azure Disk Encryption service principal.

RBAC roles like 'Key Vault Contributor' grant management plane access, not the data plane key operations needed for encryption. The access policy must define specific key permissions.

Common exam trap

Common exam trap: NAT rules depend on direction and matching traffic

NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.

Technical deep dive

How to think about this question

NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.

KKey Concepts to Remember

  • Static NAT maps one inside address to one outside address.
  • PAT allows many inside hosts to share one public address using ports.
  • Inside local and inside global describe the private and translated addresses.
  • NAT ACLs identify traffic for translation, not always security filtering.

TExam Day Tips

  • Identify inside and outside interfaces first.
  • Check whether the scenario needs static NAT, dynamic NAT or PAT.
  • Do not confuse NAT matching ACLs with normal packet-filtering intent.

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Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.

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FAQ

Questions learners often ask

What does this AZ-500 question test?

Static NAT maps one inside address to one outside address.

What is the correct answer to this question?

The correct answer is: Grant the Azure Disk Encryption service principal (Microsoft.Azure.Security) appropriate key permissions in the Key Vault access policy. — Azure Disk Encryption (ADE) uses the Microsoft.Azure.Security (Azure Disk Encryption) service principal to access the Key Vault. You must grant this service principal the get, wrapKey, and unwrapKey permissions in the key vault access policy. A managed identity is not required for classic ADE; it is used for newer encryption methods like encryption at host or client-side encryption. Soft-delete and purge protection are recommended for recovery but not strictly required for the encryption process to work. RBAC roles for key vault are an alternative to access policies but the specific permissions for ADE must still be granted to the Azure Disk Encryption service principal.

What should I do if I get this AZ-500 question wrong?

Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.

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