Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
A company uses Azure SQL Database with Transparent Data Encryption (TDE) protected by a customer-managed key (CMK) stored in Azure Key Vault. The Key Vault has a firewall enabled that denies all public network access. The SQL server is a Microsoft service. How can the SQL server be granted access to the key vault to perform 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.
A
Distractor review
Create a private endpoint on the Key Vault for the SQL server
A private endpoint could enable connectivity, but it requires additional configuration and is not the simplest solution when the 'trusted services' option is available.
B
Distractor review
Disable the Key Vault firewall
Disabling the firewall would expose the key vault to public network traffic, violating the security requirement.
C
Best answer
Enable the 'Allow trusted Microsoft services to bypass the firewall' setting on the Key Vault
This setting allows Azure SQL Database (as a trusted Microsoft service) to access the key vault for TDE operations without enabling public access.
D
Distractor review
Assign the SQL server a system-assigned managed identity and grant it access to the key vault
While managed identity is used for authentication to Key Vault, it does not bypass the Key Vault firewall; the firewall must still allow the request.
Common exam trap
Common exam trap: ACLs stop at the first match
ACLs are processed top to bottom. The first matching entry wins, and an implicit deny usually exists at the end.
Technical deep dive
How to think about this question
ACL questions test precision: source, destination, protocol, port and direction. A generally correct ACL can still fail if it is applied on the wrong interface or in the wrong direction.
KKey Concepts to Remember
- Standard ACLs match source addresses.
- Extended ACLs can match source, destination, protocol and ports.
- The first matching ACL entry is used.
- There is usually an implicit deny at the end.
TExam Day Tips
- Check inbound versus outbound direction.
- Read the ACL from top to bottom.
- Look for a broader permit or deny above the intended line.
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?
Standard ACLs match source addresses.
What is the correct answer to this question?
The correct answer is: Enable the 'Allow trusted Microsoft services to bypass the firewall' setting on the Key Vault — The 'Allow trusted Microsoft services to bypass the firewall' setting on the Key Vault firewall permits Azure SQL Database (a trusted Microsoft service) to access the key vault even when public network access is denied. This is the simplest way to meet the requirement without exposing the key vault to the internet. Private endpoints could also be used but are not strictly necessary and may add complexity. Disabling the firewall would undermine security, and managed identity alone does not bypass the firewall.
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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