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Connect to and consume Azure services and third-party services →hardMultiple ChoiceObjective-mapped

Quick Answer

The answer is that the authorization server 'auth-server-1' is not defined in the template. This is the most likely cause of the ARM template API Management OAuth 2.0 dependency error because the template's dependsOn element references a resource—the authorization server—that must exist as a separate resource definition within the same template. If that authorization server resource is missing, Azure Resource Manager cannot resolve the dependency, causing the deployment to fail with a validation error rather than a runtime failure. On the AZ-204 exam, this scenario tests your understanding of ARM template resource dependencies and how OAuth 2.0 configuration in API Management requires explicit declaration of the authorization server as a resource. A common trap is assuming the dependsOn syntax itself is wrong or that the OAuth 2.0 protocol settings are misconfigured, when in fact the missing resource definition is the root cause. Memory tip: think "no server, no dependency"—if the authorization server isn't declared as a resource, any dependsOn pointing to it will break the deployment.

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. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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.

Exhibit

{
  "resources": [
    {
      "type": "Microsoft.ApiManagement/service/apis",
      "apiVersion": "2022-08-01",
      "name": "[concat(parameters('apimServiceName'), '/myapi')]",
      "properties": {
        "displayName": "My API",
        "path": "myapi",
        "protocols": ["https"],
        "serviceUrl": "https://mybackend.azurewebsites.net",
        "authenticationSettings": {
          "oAuth2": {
            "authorizationServerId": "auth-server-1",
            "scope": "read write"
          }
        }
      },
      "dependsOn": [
        "[resourceId('Microsoft.ApiManagement/service/authorizationServers', parameters('apimServiceName'), 'auth-server-1')]"
      ]
    }
  ]
}

Refer to the exhibit. You are deploying an API in Azure API Management using an ARM template. The API is configured to use OAuth 2.0 authentication. The deployment fails with a validation error. What is the most likely cause?

Clue words in this question

Noticing these words before you look at the options changes how you read each choice.

  • Clue: "most likely"

    Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.

Question 1hardmultiple choice
Full question →

Exhibit

{
  "resources": [
    {
      "type": "Microsoft.ApiManagement/service/apis",
      "apiVersion": "2022-08-01",
      "name": "[concat(parameters('apimServiceName'), '/myapi')]",
      "properties": {
        "displayName": "My API",
        "path": "myapi",
        "protocols": ["https"],
        "serviceUrl": "https://mybackend.azurewebsites.net",
        "authenticationSettings": {
          "oAuth2": {
            "authorizationServerId": "auth-server-1",
            "scope": "read write"
          }
        }
      },
      "dependsOn": [
        "[resourceId('Microsoft.ApiManagement/service/authorizationServers', parameters('apimServiceName'), 'auth-server-1')]"
      ]
    }
  ]
}

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

✓

The authorization server 'auth-server-1' is not defined in the template.

The dependsOn references an authorization server, but the authorization server resource might not be defined in the template (option C). Option A: protocols is correct. Option B: serviceUrl is valid. Option D: dependsOn syntax is correct.

Key principle: Authentication proves identity; authorization controls what that identity can do after login. Both must work for full privileged access.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • ✗

    The serviceUrl is not a valid URL.

    Why it's wrong here

    It is a valid URL.

  • ✗

    The dependsOn array uses resourceId incorrectly.

    Why it's wrong here

    The resourceId function is used correctly.

  • ✗

    The protocols array does not include http.

    Why it's wrong here

    Missing http is allowed; https is sufficient.

  • ✓

    The authorization server 'auth-server-1' is not defined in the template.

    Why this is correct

    The dependsOn expects the authorization server resource to exist; if missing, validation fails.

    Clue confirmation

    The clue word "most likely" in the question point toward this answer.

    Related concept

    Authentication checks who the user is.

Common exam traps

Common exam trap: authentication is not authorization

Logging in proves the user can authenticate. It does not automatically mean the user is allowed to enter privileged or configuration mode. Watch for AAA authorization, privilege level and command authorization details.

Detailed technical explanation

How to think about this question

This kind of question is testing the difference between identity and permission. A user may successfully log in to a router because authentication is working, but still fail to enter configuration mode because authorization is missing, misconfigured or mapped to a lower privilege level.

KKey Concepts to Remember

  • Authentication checks who the user is.
  • Authorization controls what the user is allowed to do after login.
  • Privilege levels affect access to EXEC and configuration commands.
  • AAA, TACACS+ and RADIUS can separate login success from command access.

TExam Day Tips

  • Do not assume successful login means full administrative access.
  • Look for words such as cannot enter configuration mode, privilege level, authorization or command access.
  • Separate login problems from permission problems before choosing the answer.

Key takeaway

Authentication proves identity; authorization controls what that identity can do after login. Both must work for full privileged access.

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.

What to study next

Got this wrong? Here's your next step.

Review Cisco AAA concepts — authentication, authorization, and accounting. Study privilege levels (0–15), command authorization under TACACS+, and how RADIUS differs. Then practise related AZ-204 questions on access control and AAA configuration.

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FAQ

Questions learners often ask

What does this AZ-204 question test?

Connect to and consume Azure services and third-party services — This question tests Connect to and consume Azure services and third-party services — Authentication checks who the user is..

What is the correct answer to this question?

The correct answer is: The authorization server 'auth-server-1' is not defined in the template. — The dependsOn references an authorization server, but the authorization server resource might not be defined in the template (option C). Option A: protocols is correct. Option B: serviceUrl is valid. Option D: dependsOn syntax is correct.

What should I do if I get this AZ-204 question wrong?

Review Cisco AAA concepts — authentication, authorization, and accounting. Study privilege levels (0–15), command authorization under TACACS+, and how RADIUS differs. Then practise related AZ-204 questions on access control and AAA configuration.

Are there clue words in this question I should notice?

Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.

What is the key concept behind this question?

Authentication checks who the user is.

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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.