This AZ-204 practice question tests your understanding of implement azure security. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 have an Azure App Service web app that uses a system-assigned managed identity. The app needs to read a secret stored in Azure Key Vault. You need to grant the app the minimum required permissions to access the secret. Which RBAC role should you assign to the managed identity at the Key Vault scope?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "minimum / minimize"
Why it matters: Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
Why wrong: This role provides read access to the Key Vault metadata but not to the actual secret values. It is for viewing vault properties, not secrets.
B
Key Vault Secrets User
This role grants permission to read secrets (get, list) from the vault. It is the least privileged role that allows reading secret values.
C
Key Vault Secrets Officer
Why wrong: This role allows creation, deletion, and management of secrets, which is more than read access. It violates the principle of least privilege.
D
Contributor
Why wrong: This role grants management plane access to the Key Vault resource (e.g., configure firewall, network settings) but does not grant access to read secrets. Data plane access must be granted explicitly.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Key Vault Secrets User
The Key Vault Secrets User role grants the minimum required permission to read secrets from Azure Key Vault. This role provides the 'Microsoft.KeyVault/vaults/secrets/getSecret/action' permission, which is exactly what the app needs to retrieve the secret value. It does not grant any write or management capabilities, adhering to the principle of least privilege.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Key Vault Reader
Why it's wrong here
This role provides read access to the Key Vault metadata but not to the actual secret values. It is for viewing vault properties, not secrets.
✓
Key Vault Secrets User
Why this is correct
This role grants permission to read secrets (get, list) from the vault. It is the least privileged role that allows reading secret values.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Key Vault Secrets Officer
Why it's wrong here
This role allows creation, deletion, and management of secrets, which is more than read access. It violates the principle of least privilege.
✗
Contributor
Why it's wrong here
This role grants management plane access to the Key Vault resource (e.g., configure firewall, network settings) but does not grant access to read secrets. Data plane access must be granted explicitly.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse the Key Vault Reader role (which only allows listing vaults and reading metadata, not secret values) with the ability to read secrets, leading them to select it as the minimum permission.
Detailed technical explanation
How to think about this question
Under the hood, the system-assigned managed identity authenticates to Key Vault via Azure AD using OAuth 2.0. The RBAC role assignment translates to specific data plane permissions in the Key Vault access policy model. The Key Vault Secrets User role maps to the 'get' permission for secrets, which is enforced at the vault's data plane, not the management plane. In a real-world scenario, if the app only needs to read a secret at startup, using this role prevents accidental deletion or modification of secrets by the app.
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.
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
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-204 question in full detail.
Implement Azure security — This question tests Implement Azure security — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Key Vault Secrets User — The Key Vault Secrets User role grants the minimum required permission to read secrets from Azure Key Vault. This role provides the 'Microsoft.KeyVault/vaults/secrets/getSecret/action' permission, which is exactly what the app needs to retrieve the secret value. It does not grant any write or management capabilities, adhering to the principle of least privilege.
What should I do if I get this AZ-204 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "minimum / minimize". Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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