- A
Enable trusted Microsoft services on the Key Vault firewall
Correct. Enabling 'Allow trusted Microsoft services to bypass the firewall' on the Key Vault allows Azure SQL Database to access the key even with the firewall enabled.
- B
Create a private endpoint for Key Vault
Why wrong: A private endpoint is one method to allow private access, but it is not required. The trusted services setting is a simpler and often sufficient solution. The question asks 'what additional configuration is necessary?' The trusted services setting is typically the easiest path.
- C
Assign the SQL server's managed identity to the Key Vault
Why wrong: Assigning the managed identity and granting key permissions is necessary for authorization but does not solve the network firewall issue. The firewall must be configured to allow access from trusted services.
- D
Configure a service endpoint on the SQL server
Why wrong: Service endpoints are for connecting from virtual networks to Azure services, not for accessing Key Vault from SQL Database. SQL Database is a PaaS service, not a resource in a VNet.
AZ-500 Secure compute, storage, and databases Practice Question
This AZ-500 practice question tests your understanding of secure compute, storage, and databases. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. A key principle to apply: azure Key Vault firewalls can block all public access.. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company uses Azure SQL Database with Transparent Data Encryption (TDE) and a customer-managed key stored in Azure Key Vault. The Key Vault is configured with a firewall that denies all public access. The SQL server must be able to access the key. What additional configuration is necessary?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Enable trusted Microsoft services on the Key Vault firewall
When Azure Key Vault's firewall denies all public access, enabling 'Allow trusted Microsoft services' is necessary because Azure SQL Database's TDE key retrieval is considered a trusted service operation. This setting bypasses the firewall for specific Azure services like SQL Database that are authenticated and authorized to access the vault, without requiring a private endpoint or service endpoint.
Key principle: Azure Key Vault firewalls can block all public access.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Enable trusted Microsoft services on the Key Vault firewall
Why this is correct
Correct. Enabling 'Allow trusted Microsoft services to bypass the firewall' on the Key Vault allows Azure SQL Database to access the key even with the firewall enabled.
Related concept
Azure Key Vault firewalls can block all public access.
- ✗
Create a private endpoint for Key Vault
Why it's wrong here
A private endpoint is one method to allow private access, but it is not required. The trusted services setting is a simpler and often sufficient solution. The question asks 'what additional configuration is necessary?' The trusted services setting is typically the easiest path.
- ✗
Assign the SQL server's managed identity to the Key Vault
Why it's wrong here
Assigning the managed identity and granting key permissions is necessary for authorization but does not solve the network firewall issue. The firewall must be configured to allow access from trusted services.
- ✗
Configure a service endpoint on the SQL server
Why it's wrong here
Service endpoints are for connecting from virtual networks to Azure services, not for accessing Key Vault from SQL Database. SQL Database is a PaaS service, not a resource in a VNet.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse the authentication/authorization step (assigning managed identity) with the network connectivity step (firewall bypass), assuming that granting permissions alone is sufficient when the Key Vault firewall is blocking all traffic.
Detailed technical explanation
How to think about this question
Under the hood, the 'Allow trusted Microsoft services' setting adds an implicit allow rule for Azure services that are part of the Azure trusted services list, including Azure SQL Database. This leverages the Azure infrastructure's internal network boundary, allowing the SQL Database service to communicate with Key Vault without traversing the public internet, even when the Key Vault firewall blocks all other public traffic. In a real-world scenario, if this setting is not enabled, TDE key rotation or database startup will fail with a 403 Forbidden error, even if the SQL server's managed identity has correct Key Vault access policies.
KKey Concepts to Remember
- Azure Key Vault firewalls can block all public access.
- Trusted Microsoft services can bypass Key Vault firewalls.
- Azure SQL Database is considered a trusted Microsoft service.
- This bypass allows secure, private access without private endpoints.
TExam Day Tips
- 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.
Key takeaway
Azure Key Vault firewalls can block all public access.
Real-world example
How this comes up in practice
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
What to study next
Got this wrong? Here's your next step.
Review azure Key Vault firewalls can block all public access., then practise related AZ-500 questions on the same topic to reinforce the concept.
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FAQ
Questions learners often ask
What does this AZ-500 question test?
Secure compute, storage, and databases — This question tests Secure compute, storage, and databases — Azure Key Vault firewalls can block all public access..
What is the correct answer to this question?
The correct answer is: Enable trusted Microsoft services on the Key Vault firewall — When Azure Key Vault's firewall denies all public access, enabling 'Allow trusted Microsoft services' is necessary because Azure SQL Database's TDE key retrieval is considered a trusted service operation. This setting bypasses the firewall for specific Azure services like SQL Database that are authenticated and authorized to access the vault, without requiring a private endpoint or service endpoint.
What should I do if I get this AZ-500 question wrong?
Review azure Key Vault firewalls can block all public access., then practise related AZ-500 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
Azure Key Vault firewalls can block all public access.
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Last reviewed: Jun 11, 2026
This AZ-500 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the AZ-500 exam.
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