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Describe the capabilities of Microsoft Entra →easyMultiple ChoiceObjective-mapped

SC-900 Describe the capabilities of Microsoft Entra Practice Question

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

Refer to the exhibit. {
  "displayName": "Block Legacy Auth",
  "state": "enabled",
  "conditions": {
    "clientAppTypes": ["exchangeActiveSync", "otherClients"],
    "applications": {
      "includeApplications": ["All"]
    }
  },
  "grantControls": {
    "builtInControls": ["block"],
    "operator": "OR"
  }
}

Refer to the exhibit. The JSON shows a Conditional Access policy. What is the primary purpose of this policy?

Clue words in this question

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

  • Clue: "primary"

    Why it matters: Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.

Question 1easymultiple choice
Full question →

Exhibit

Refer to the exhibit. {
  "displayName": "Block Legacy Auth",
  "state": "enabled",
  "conditions": {
    "clientAppTypes": ["exchangeActiveSync", "otherClients"],
    "applications": {
      "includeApplications": ["All"]
    }
  },
  "grantControls": {
    "builtInControls": ["block"],
    "operator": "OR"
  }
}

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

✓

Block legacy authentication protocols

The policy targets 'Block legacy authentication' by applying a condition that blocks authentication attempts using legacy protocols (e.g., POP3, IMAP4, SMTP, ActiveSync) which do not support modern authentication methods like MFA. This is a common security measure to prevent credential-stuffing and password-spray attacks that exploit the lack of MFA enforcement in legacy protocols.

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.

  • ✓

    Block legacy authentication protocols

    Why this is correct

    The policy blocks client app types that use legacy protocols.

    Clue confirmation

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

    Related concept

    Read the scenario before looking for a memorised answer.

  • ✗

    Require MFA for all applications

    Why it's wrong here

    The grant control is 'block', not MFA.

  • ✗

    Disable the policy for emergency access

    Why it's wrong here

    The policy is enabled, not disabled.

  • ✗

    Allow only iOS devices

    Why it's wrong here

    There is no device filter.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates often confuse 'blocking legacy authentication' with 'requiring MFA' — the policy blocks the protocol entirely rather than prompting for an additional factor, which is a distinct control in Conditional Access.

Detailed technical explanation

How to think about this question

Legacy authentication protocols (e.g., POP3, IMAP4, SMTP, ActiveSync) do not support modern authentication flows like OAuth 2.0 or device-based conditional access, making them vulnerable to replay attacks. By blocking these protocols at the Conditional Access level, Azure AD enforces that only clients using modern authentication (e.g., Microsoft Graph, Outlook for iOS/Android) can access resources, effectively reducing the attack surface for password-based attacks. In real-world scenarios, organizations often combine this policy with MFA requirements for modern protocols to achieve defense-in-depth.

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.

What to study next

Got this wrong? Here's your next step.

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

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FAQ

Questions learners often ask

What does this SC-900 question test?

Describe the capabilities of Microsoft Entra — This question tests Describe the capabilities of Microsoft Entra — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: Block legacy authentication protocols — The policy targets 'Block legacy authentication' by applying a condition that blocks authentication attempts using legacy protocols (e.g., POP3, IMAP4, SMTP, ActiveSync) which do not support modern authentication methods like MFA. This is a common security measure to prevent credential-stuffing and password-spray attacks that exploit the lack of MFA enforcement in legacy protocols.

What should I do if I get this SC-900 question wrong?

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

Are there clue words in this question I should notice?

Yes — watch for: "primary". Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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Last reviewed: Jun 24, 2026

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This SC-900 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 SC-900 exam.