The correct answer is to set the Issuer URL to the specific tenant’s endpoint, such as https://login.microsoftonline.com/{tenant-id}/v2.0. This configuration works because Azure Functions validates the token’s issuer claim against the provided URL; if the token was issued by a different tenant, the issuer mismatch causes authentication to fail, effectively restricting access to only users from that exact Microsoft Entra tenant. On the AZ-204 exam, this concept tests your understanding of how to enforce tenant-level isolation in serverless APIs, often appearing as a distractor where candidates mistakenly adjust the Allowed Token Audiences or client ID instead. A common trap is thinking you can filter users by app roles alone, but issuer validation is the gatekeeper for tenant identity. Memory tip: think of the Issuer URL as the “bouncer checking ID badges”—it only lets in tokens stamped with your tenant’s specific address.
AZ-204 Develop Azure compute solutions Practice Question
This AZ-204 practice question tests your understanding of develop azure compute solutions. 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 are building a serverless API using Azure Functions. The API must authenticate requests using Microsoft Entra ID. You need to restrict access to users from a specific Microsoft Entra tenant only. What should you configure in the function app?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Set the 'Issuer URL' to the specific tenant's endpoint.
Option D is correct because setting the 'Issuer URL' to the specific tenant's endpoint (e.g., https://login.microsoftonline.com/{tenant-id}/v2.0) tells Azure Functions to validate that the token was issued by that exact tenant. This restricts access to users from that tenant only, as tokens from other tenants will fail issuer validation.
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.
✗
Set the 'Allowed Token Audiences' to the application ID.
Why it's wrong here
Allowed Token Audiences validates the audience claim, not the issuer.
✗
Enable 'Require Authentication' and set the action to 'Login with Microsoft Entra ID'.
Why it's wrong here
This enables authentication but does not restrict to a specific tenant.
✗
Set the 'Client ID' to the application ID.
Why it's wrong here
Client ID identifies the app, not the tenant.
✓
Set the 'Issuer URL' to the specific tenant's endpoint.
Why this is correct
The issuer URL validation restricts tokens to a specific tenant.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse 'Client ID' (which identifies the app) or 'Allowed Token Audiences' (which validates the audience) with tenant restriction, but only the Issuer URL enforces which tenant's tokens are accepted.
Detailed technical explanation
How to think about this question
Under the hood, the Issuer URL corresponds to the 'iss' claim in the JWT token. Azure Functions uses OpenID Connect discovery to fetch the signing keys from the issuer's metadata endpoint (e.g., https://login.microsoftonline.com/{tenant}/v2.0/.well-known/openid-configuration). If the issuer does not match, the token is rejected with a 401. In a real-world multi-tenant scenario, you might combine this with tenant-specific app roles or claims-based authorization for fine-grained access control.
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.
Develop Azure compute solutions — This question tests Develop Azure compute solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Set the 'Issuer URL' to the specific tenant's endpoint. — Option D is correct because setting the 'Issuer URL' to the specific tenant's endpoint (e.g., https://login.microsoftonline.com/{tenant-id}/v2.0) tells Azure Functions to validate that the token was issued by that exact tenant. This restricts access to users from that tenant only, as tokens from other tenants will fail issuer validation.
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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