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 are developing an API that uses managed identity to access Azure Key Vault. The API runs in an Azure App Service with system-assigned managed identity enabled. You need to retrieve a secret value. Which API endpoint should your code call?
Option B is correct because it uses the full Key Vault REST API endpoint with the specific vault name ('myvault'), the 'secrets' resource path, the secret name, and the required 'api-version' query parameter (7.0). The managed identity in the App Service authenticates via Azure AD, and the code must call this specific endpoint to retrieve the secret value, as the vault name is part of the DNS name and the API version is mandatory.
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.
✗
https://vault.azure.net/secrets/{secret-name}
Why it's wrong here
Incorrect. This URL is missing the vault-name, which is required to uniquely identify the Key Vault instance.
Incorrect. This is the Azure Resource Manager endpoint, not for Key Vault data plane operations.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse the Key Vault REST API endpoint with the Azure AD token endpoint or the Azure Resource Manager endpoint, forgetting that the vault name is part of the DNS and that an API version is required.
Detailed technical explanation
How to think about this question
Under the hood, the managed identity obtains an access token from the Azure Instance Metadata Service (IMDS) endpoint at 169.254.169.254, which is then used as a Bearer token in the Authorization header of the HTTPS request to the Key Vault REST API. The 'api-version' parameter is mandatory because Key Vault's REST API is versioned; omitting it or using an incorrect version results in a 400 Bad Request. In a real-world scenario, if the vault is in a different tenant or uses RBAC, the code must also handle the correct token audience ('https://vault.azure.net').
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: https://myvault.vault.azure.net/secrets/{secret-name}?api-version=7.0 — Option B is correct because it uses the full Key Vault REST API endpoint with the specific vault name ('myvault'), the 'secrets' resource path, the secret name, and the required 'api-version' query parameter (7.0). The managed identity in the App Service authenticates via Azure AD, and the code must call this specific endpoint to retrieve the secret value, as the vault name is part of the DNS name and the API version is mandatory.
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.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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