The correct answer is to use DefaultAzureCredential in the application code, enable managed identity on the App Service, and grant that identity the Key Vault Secrets User role. This approach works because managed identity eliminates the need for storing credentials in code or configuration—Azure automatically rotates the identity’s tokens, while DefaultAzureCredential seamlessly picks up the App Service’s managed identity at runtime without any explicit connection strings. On the AZ-204 exam, this scenario tests your understanding of identity-based authentication versus secret-based methods; a common trap is choosing to store a connection string in app settings, which violates the principle of zero-trust secrets management. Remember that managed identity plus DefaultAzureCredential is the modern, secure pattern for Azure resources talking to each other. A useful memory tip: “M.I.D. for Key Vault”—Managed Identity, IAM role assignment, and DefaultAzureCredential.
AZ-204 Practice Question: Connect to and consume Azure services and third-party services
This AZ-204 practice question tests your understanding of connect to and consume azure services and third-party services. 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.
Which THREE actions should you take to securely access Azure Key Vault from an Azure App Service? (Choose three.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Grant the managed identity the 'Key Vault Secrets User' role.
Options A, B, and D are correct. Enable managed identity on the App Service to authenticate without secrets. Grant the managed identity the Key Vault Secrets User role to read secrets. Use the DefaultAzureCredential class in code to automatically use the managed identity. Option C is wrong because storing the connection string in app settings exposes the secret. Option E is wrong because network restrictions are not required for security; managed identity and RBAC are sufficient.
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.
✗
Configure network restrictions on the Key Vault to allow only the App Service's outbound IP.
Why it's wrong here
Network restrictions are not required; managed identity and RBAC provide sufficient security.
✓
Grant the managed identity the 'Key Vault Secrets User' role.
Why this is correct
This role allows reading secrets from Key Vault.
Related concept
Read the scenario before looking for a memorised answer.
✓
Enable managed identity on the App Service.
Why this is correct
Managed identity allows the App Service to authenticate to Key Vault without credentials.
Related concept
Read the scenario before looking for a memorised answer.
✓
Use DefaultAzureCredential in the application code.
Why this is correct
DefaultAzureCredential automatically uses the managed identity when running in Azure.
Related concept
Read the scenario before looking for a memorised answer.
✗
Store the Key Vault URL and a client secret in App Service application settings.
Why it's wrong here
Storing client secrets in settings defeats the purpose of using managed identity.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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.
Identify which AZ-204 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Connect to and consume Azure services and third-party services — This question tests Connect to and consume Azure services and third-party services — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Grant the managed identity the 'Key Vault Secrets User' role. — Options A, B, and D are correct. Enable managed identity on the App Service to authenticate without secrets. Grant the managed identity the Key Vault Secrets User role to read secrets. Use the DefaultAzureCredential class in code to automatically use the managed identity. Option C is wrong because storing the connection string in app settings exposes the secret. Option E is wrong because network restrictions are not required for security; managed identity and RBAC are sufficient.
What should I do if I get this AZ-204 question wrong?
Identify which AZ-204 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. You are developing an ASP.NET Core application that needs to access Azure Key Vault to retrieve secrets. You have enabled a managed identity for the App Service. Which Azure SDK class should you use to authenticate to Key Vault?
easy
✓ A.DefaultAzureCredential
B.ClientSecretCredential
C.ManagedIdentityCredential
D.InteractiveBrowserCredential
Why A: DefaultAzureCredential is the recommended approach because it provides a chained authentication mechanism that attempts multiple credential types in order, including ManagedIdentityCredential, EnvironmentCredential, and others. When running in an Azure App Service with a managed identity enabled, DefaultAzureCredential will automatically use the managed identity to authenticate to Key Vault, making it the most flexible and future-proof choice for this scenario.
Variation 2. A web app needs to access Azure Key Vault secrets for database credentials. The app runs as a managed identity in Azure App Service. Which authentication method should be used to retrieve secrets without storing credentials in the app code?
easy
✓ A.Managed identity
B.Access key
C.Client certificate
D.Shared access signature (SAS) token
Why A: Managed identity (option A) allows the app to authenticate to Azure services without storing credentials. Access keys (B) are not recommended. Client certificate (C) requires certificate management. SAS tokens (D) are for storage, not Key Vault.
Last reviewed: Jun 20, 2026
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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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