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Describe the capabilities of Microsoft security solutions →hardMultiple ChoiceObjective-mapped

Quick Answer

The answer is that the 'mfaEnabledPrincipals' parameter is not populated with the list of MFA-enabled users. This is the most likely cause because the Azure Policy definition uses the auditIfNotExists effect with an existenceCondition that checks whether a principal ID exists within that specific parameter array. The policy does not automatically query or detect which users have MFA enabled; instead, it relies on the parameter being manually or programmatically populated with the correct list of MFA-enabled principals. On the SC-900 exam, this scenario tests your understanding of how auditIfNotExists policies require explicit data inputs to evaluate compliance, a common trap where candidates assume Azure Policy can dynamically assess MFA status without a pre-populated reference list. A helpful memory tip is to think of the parameter as a "guest list"—if the bouncer (the policy) doesn't have the list of approved names (MFA-enabled users), it cannot check who is missing from the party.

SC-900 Practice Question: Describe the capabilities of Microsoft security solutions

This SC-900 practice question tests your understanding of describe the capabilities of microsoft security solutions. 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.

Exhibit

{
  "properties": {
    "displayName": "Require MFA for Azure Management",
    "policyType": "Custom",
    "mode": "All",
    "policyRule": {
      "if": {
        "allOf": [
          {
            "field": "type",
            "equals": "Microsoft.Authorization/roleAssignments"
          },
          {
            "field": "Microsoft.Authorization/roleAssignments/roleDefinitionId",
            "equals": "[parameters('managementRoles')]"
          }
        ]
      },
      "then": {
        "effect": "auditIfNotExists",
        "details": {
          "type": "Microsoft.Authorization/roleAssignments",
          "existenceCondition": {
            "field": "Microsoft.Authorization/roleAssignments/principalId",
            "in": "[parameters('mfaEnabledPrincipals')]"
          }
        }
      }
    },
    "parameters": {
      "managementRoles": {
        "type": "Array",
        "defaultValue": ["8e3af657-a8ff-443c-a75c-2fe8c4bcb635"]
      },
      "mfaEnabledPrincipals": {
        "type": "Array"
      }
    }
  }
}

Refer to the exhibit. You are evaluating a custom Azure Policy definition. The policy is intended to audit whether users assigned to a management role have MFA enabled. However, the policy is not triggering alerts for non-compliant users. 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

{
  "properties": {
    "displayName": "Require MFA for Azure Management",
    "policyType": "Custom",
    "mode": "All",
    "policyRule": {
      "if": {
        "allOf": [
          {
            "field": "type",
            "equals": "Microsoft.Authorization/roleAssignments"
          },
          {
            "field": "Microsoft.Authorization/roleAssignments/roleDefinitionId",
            "equals": "[parameters('managementRoles')]"
          }
        ]
      },
      "then": {
        "effect": "auditIfNotExists",
        "details": {
          "type": "Microsoft.Authorization/roleAssignments",
          "existenceCondition": {
            "field": "Microsoft.Authorization/roleAssignments/principalId",
            "in": "[parameters('mfaEnabledPrincipals')]"
          }
        }
      }
    },
    "parameters": {
      "managementRoles": {
        "type": "Array",
        "defaultValue": ["8e3af657-a8ff-443c-a75c-2fe8c4bcb635"]
      },
      "mfaEnabledPrincipals": {
        "type": "Array"
      }
    }
  }
}

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 'mfaEnabledPrincipals' parameter is not populated with the list of MFA-enabled users.

The policy uses 'auditIfNotExists' but the existenceCondition checks if the principal ID is in the 'mfaEnabledPrincipals' parameter. This parameter must be populated with the list of principals that have MFA enabled, but the policy does not automatically detect MFA status. Option A is incorrect because the mode is 'All', which includes role assignments. Option C is incorrect because the policy does check for role assignments. Option D is incorrect because the audit effect does not require remediation.

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 'mfaEnabledPrincipals' parameter is not populated with the list of MFA-enabled users.

    Why this is correct

    Without this parameter, the existenceCondition cannot evaluate compliance.

    Clue confirmation

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

    Related concept

    Authentication checks who the user is.

  • ✗

    The policy mode is set to 'All' instead of 'Indexed'.

    Why it's wrong here

    'All' mode is correct for role assignments.

  • ✗

    The policy only evaluates role assignments of type 'Microsoft.Authorization/roleAssignments' but not users.

    Why it's wrong here

    The policy correctly evaluates role assignments.

  • ✗

    The effect 'auditIfNotExists' should be 'deny' to trigger alerts.

    Why it's wrong here

    Audit effect does trigger compliance alerts; deny would block assignments.

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 SC-900 questions on access control and AAA configuration.

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FAQ

Questions learners often ask

What does this SC-900 question test?

Describe the capabilities of Microsoft security solutions — This question tests Describe the capabilities of Microsoft security solutions — Authentication checks who the user is..

What is the correct answer to this question?

The correct answer is: The 'mfaEnabledPrincipals' parameter is not populated with the list of MFA-enabled users. — The policy uses 'auditIfNotExists' but the existenceCondition checks if the principal ID is in the 'mfaEnabledPrincipals' parameter. This parameter must be populated with the list of principals that have MFA enabled, but the policy does not automatically detect MFA status. Option A is incorrect because the mode is 'All', which includes role assignments. Option C is incorrect because the policy does check for role assignments. Option D is incorrect because the audit effect does not require remediation.

What should I do if I get this SC-900 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 SC-900 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 21, 2026

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