A company uses Azure SQL Database with Transparent Data Encryption (TDE) encrypted using a customer-managed key (CMK) stored in Azure Key Vault. The Key Vault is protected by a firewall and virtual network service endpoints. The storage account used for TDE logs is in the same Azure region. What additional configuration is necessary in the Key Vault to allow Azure SQL Database to access the CMK for TDE operations?
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.
Best answer
Enable 'Allow trusted Microsoft services to bypass this firewall' in the Key Vault firewall settings.
Correct. This setting allows Azure SQL Database (a trusted service) to bypass the Key Vault firewall and access the CMK for TDE operations.
Distractor review
Disable public network access on the Key Vault.
Incorrect. Disabling public network access would block all access from the internet and Azure services, preventing Azure SQL Database from reaching the Key Vault.
Distractor review
Add the SQL Database server's system-assigned managed identity to the Key Vault access policy.
Incorrect. This is required for permissions (get, wrap, unwrap) but does not resolve the firewall block. Both are typically needed.
Distractor review
Enable soft-delete on the Key Vault.
Incorrect. Soft-delete protects against accidental deletion but does not affect network connectivity or firewall bypass.
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: Enable 'Allow trusted Microsoft services to bypass this firewall' in the Key Vault firewall settings. — When the Azure Key Vault firewall is enabled, it blocks all network traffic by default. Azure SQL Database, when using TDE with a CMK, is considered a trusted Microsoft service. To allow this service to bypass the firewall, you must enable the option 'Allow trusted Microsoft services to bypass this firewall' in the Key Vault firewall settings. Without this setting, the SQL Database cannot access the key, even if the access policy is correctly configured. Option A is the correct configuration. Adding the managed identity (Option C) is required for the access policy but does not address the firewall bypass. Soft-delete (Option D) is a separate protection feature. Disabling public network access (Option B) would block all connections and is not the correct solution.
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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