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Manage security and threats by using Microsoft Defender XDR →hardMultiple ChoiceObjective-mapped

Quick Answer

The answer is that the ExcludePlatforms parameter is placed incorrectly in the JSON body, as it must be nested under conditions.platforms.excludePlatforms rather than at the top level. This is because the New-MgIdentityConditionalAccessPolicy cmdlet requires the excludePlatforms property to be a child of the platforms object within the conditions block; when placed incorrectly at the root, the parameter is ignored, causing the policy to apply to all platforms, including iOS and Android. On the MS-102 exam, this tests your understanding of the JSON schema for Conditional Access policies in Microsoft Graph PowerShell, a common trap where candidates assume top-level parameters are valid. Remember the nesting hierarchy: conditions > platforms > excludePlatforms. A useful memory tip is to think of it as “platforms are a condition, so excludePlatforms must live inside that condition’s house.”

MS-102 Practice Question: Manage security and threats by using Microsoft Defender XDR

This MS-102 practice question tests your understanding of manage security and threats by using microsoft defender xdr. 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

Refer to the exhibit.

```powershell
$config = @{
    TenantId = "contoso.onmicrosoft.com"
    PolicyName = "Strict Security"
    UserRiskLevels = @("high", "medium")
    SignInRiskLevels = @("high")
    ExcludePlatforms = @("iOS", "Android")
    IncludeApplications = @("All")
    GrantControls = @{
        BuiltInControls = @("mfa", "compliantDevice")
        TermsOfUse = @("TOU1")
    }
}
New-MgIdentityConditionalAccessPolicy -BodyParameter $config
```

A tenant administrator runs the above PowerShell command to create a Conditional Access policy. Users on iOS and Android devices report that they are still prompted for MFA, but the policy is intended to exclude those platforms. What is the issue?

Question 1hardmultiple choice
Full question →

Exhibit

Refer to the exhibit.

```powershell
$config = @{
    TenantId = "contoso.onmicrosoft.com"
    PolicyName = "Strict Security"
    UserRiskLevels = @("high", "medium")
    SignInRiskLevels = @("high")
    ExcludePlatforms = @("iOS", "Android")
    IncludeApplications = @("All")
    GrantControls = @{
        BuiltInControls = @("mfa", "compliantDevice")
        TermsOfUse = @("TOU1")
    }
}
New-MgIdentityConditionalAccessPolicy -BodyParameter $config
```

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 ExcludePlatforms parameter is placed incorrectly in the JSON body; it should be under conditions.platforms.excludePlatforms.

The 'ExcludePlatforms' property is used to exclude platforms from the policy. However, in the New-MgIdentityConditionalAccessPolicy cmdlet, the parameter for excluding platforms is 'ExcludePlatforms' but the correct property name in the body should be 'conditions' > 'platforms' > 'excludePlatforms'. The exhibit's structure is incorrect; the 'ExcludePlatforms' at the top level is ignored. Therefore, the policy applies to all platforms, including iOS and Android. Option A is correct. Option B is wrong because the policy is successfully created. Option C is wrong because MFA is enforced as intended for other platforms. Option D is wrong because the policy does apply.

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.

  • ✗

    The policy does not apply to iOS and Android because they are not listed in IncludeApplications.

    Why it's wrong here

    IncludeApplications is set to All.

  • ✗

    The policy creation failed due to invalid syntax.

    Why it's wrong here

    The command executes successfully, but the policy is misconfigured.

  • ✗

    The policy requires MFA for all apps, overriding the platform exclusion.

    Why it's wrong here

    Exclusion should prevent the policy from applying.

  • ✓

    The ExcludePlatforms parameter is placed incorrectly in the JSON body; it should be under conditions.platforms.excludePlatforms.

    Why this is correct

    The correct structure requires the excludePlatforms under conditions.

    Related concept

    Read the scenario before looking for a memorised answer.

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.

Trap categories for this question

  • Command / output trap

    The command executes successfully, but the policy is misconfigured.

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.

What to study next

Got this wrong? Here's your next step.

Identify which MS-102 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.

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FAQ

Questions learners often ask

What does this MS-102 question test?

Manage security and threats by using Microsoft Defender XDR — This question tests Manage security and threats by using Microsoft Defender XDR — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: The ExcludePlatforms parameter is placed incorrectly in the JSON body; it should be under conditions.platforms.excludePlatforms. — The 'ExcludePlatforms' property is used to exclude platforms from the policy. However, in the New-MgIdentityConditionalAccessPolicy cmdlet, the parameter for excluding platforms is 'ExcludePlatforms' but the correct property name in the body should be 'conditions' > 'platforms' > 'excludePlatforms'. The exhibit's structure is incorrect; the 'ExcludePlatforms' at the top level is ignored. Therefore, the policy applies to all platforms, including iOS and Android. Option A is correct. Option B is wrong because the policy is successfully created. Option C is wrong because MFA is enforced as intended for other platforms. Option D is wrong because the policy does apply.

What should I do if I get this MS-102 question wrong?

Identify which MS-102 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

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Same concept, more angles

1 more ways this is tested on MS-102

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. Drag and drop the steps to configure a Conditional Access policy in Microsoft Entra ID in the correct order.

medium

    Why : Conditional Access policies are created in Entra ID, assigned to users, conditions defined, and access controls applied.

    Last reviewed: Jun 21, 2026

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