Question 1hardmultiple choice
Full question →hardmultiple choiceObjective-mapped
A company uses Azure Disk Encryption (ADE) on Windows virtual machines. They use a key encryption key (KEK) stored in Azure Key Vault to wrap the disk encryption key. The security policy requires that the KEK be automatically rotated every 90 days. They need to ensure that after rotation, the OS and data disks of running VMs automatically get re-wrapped with the new KEK version. Which configuration should they implement?
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
Distractor review
Enable soft-delete and purge protection on the Key Vault.
Soft-delete and purge protection help recover deleted keys, but they do not enable automatic key rotation or re-wrapping of disks.
B
Best answer
Use Key Vault key auto-rotation with a 90-day rotation period, and configure the disk encryption set to use the latest key version (empty string).
Key Vault key auto-rotation creates new key versions on schedule. By setting the key version to empty in the disk encryption set, the VMs automatically re-wrap their disks with the latest key version after rotation.
C
Distractor review
Create a new KEK every 90 days and modify the disk encryption set to point to the new key version.
This approach is manual and does not automatically re-wrap running VMs. It requires updating the disk encryption set and may require a VM restart or manual re-encryption.
D
Distractor review
Use Azure Policy to enforce automatic key rotation.
Azure Policy can audit or enforce that VMs use a specific key version, but it does not cause automatic re-wrapping after key rotation. The disk encryption set must be configured to use the latest key version.
Common exam trap
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Technical deep dive
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Related practice questions
Related AZ-500 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
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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?
Read the scenario before looking for a memorised answer.
What is the correct answer to this question?
The correct answer is: Use Key Vault key auto-rotation with a 90-day rotation period, and configure the disk encryption set to use the latest key version (empty string). — To enable automatic re-wrapping of disks after KEK rotation, you must set the key version to an empty string in the disk encryption set that is associated with the VMs. When the key version is empty, Azure Disk Encryption will automatically use the latest version of the key from the Key Vault. Combined with Azure Key Vault's built-in key auto-rotation (which can be set for a 90-day cycle), the VMs will automatically re-wrap their encryption keys without any manual intervention. Soft-delete and purge protection are recovery features, not rotation. Creating a new KEK manually or using Azure Policy does not provide automatic re-wrapping for running VMs.
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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