Quick Answer
The answer is to implement a custom solution using Azure Functions and Event Grid, as Azure Key Vault does not provide a native automatic rotation feature for secrets. This is because Key Vault’s built-in rotation policies apply only to cryptographic keys, not to secrets like connection strings or passwords; to achieve automatic secret rotation, you must configure an Event Grid subscription that triggers an Azure Function whenever a secret nears expiration, with the function generating a new secret and updating the vault. On the AZ-204 exam, this scenario tests your understanding of event-driven architectures and the limitations of Key Vault’s managed services—a common trap is assuming a simple “rotation policy” exists for secrets, when in fact you must build the automation yourself. Remember the mnemonic: “Secrets need a trigger, keys have a policy”—if the question demands automatic secret rotation, think Event Grid plus a function.
This AZ-204 practice question tests your understanding of implement azure security. 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. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. 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.
You need to ensure that secrets stored in Azure Key Vault are automatically rotated every 90 days. Which feature should you configure?
Set an access policy for the secret
Why wrong: Access policies control who can access the secret, not rotation.
Enable soft delete and purge protection
Why wrong: These are data protection features, not rotation.
Set a secret expiration date
Why wrong: Expiration dates notify but do not automatically rotate.
Use Key Vault secret rotation with Event Grid and Azure Functions
This is the recommended approach to automate secret rotation.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Use Key Vault secret rotation with Event Grid and Azure Functions
Key Vault does not support automatic rotation natively; you need to use a manual or custom solution. However, the question asks for 'automatically', and the closest built-in feature is the 'Create a key rotation policy' for keys, but for secrets, there is no automatic rotation. The answer is that there is no built-in automatic rotation for secrets; you must use a custom solution or Azure Event Grid with a function. But since the options must be plausible, the correct answer here is that you need to implement a custom solution using Azure Functions and Event Grid.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Set an access policy for the secret
Why it's wrong here
Access policies control who can access the secret, not rotation.
Enable soft delete and purge protection
Why it's wrong here
These are data protection features, not rotation.
Set a secret expiration date
Why it's wrong here
Expiration dates notify but do not automatically rotate.
Use Key Vault secret rotation with Event Grid and Azure Functions
Why this is correct
This is the recommended approach to automate secret rotation.
Related concept
Static NAT maps one inside address to one outside address.
Common exam traps
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.
Detailed technical explanation
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.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
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
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related AZ-204 NAT questions on configuration and troubleshooting.
Implement Azure security — study guide chapter
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FAQ
Implement Azure security — This question tests Implement Azure security — Static NAT maps one inside address to one outside address..
The correct answer is: Use Key Vault secret rotation with Event Grid and Azure Functions — Key Vault does not support automatic rotation natively; you need to use a manual or custom solution. However, the question asks for 'automatically', and the closest built-in feature is the 'Create a key rotation policy' for keys, but for secrets, there is no automatic rotation. The answer is that there is no built-in automatic rotation for secrets; you must use a custom solution or Azure Event Grid with a function. But since the options must be plausible, the correct answer here is that you need to implement a custom solution using Azure Functions and Event Grid.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related AZ-204 NAT questions on configuration and troubleshooting.
Static NAT maps one inside address to one outside address.
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Last reviewed: Jun 20, 2026
This AZ-204 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-204 exam.
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