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. 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.
A company uses Microsoft Entra ID and requires that all guest users from a partner organization must sign in using Microsoft Authenticator for MFA. The partner organization manages their own identities. What should you configure?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
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Configure cross-tenant access settings to trust MFA from the partner's Microsoft Entra ID tenant
Option C is correct because cross-tenant access settings in Microsoft Entra ID allow you to trust MFA claims from an external partner's tenant. Since the partner manages their own identities, trusting their MFA ensures that guest users from that partner organization can satisfy MFA requirements using their own Microsoft Authenticator without needing to register again in your tenant.
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.
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Enable Microsoft Entra ID Protection and configure MFA registration policy for guests
Configure cross-tenant access settings to trust MFA from the partner's Microsoft Entra ID tenant
Why this is correct
Cross-tenant access settings allow you to accept MFA claims from external tenants.
Related concept
Read the scenario before looking for a memorised answer.
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Create a Conditional Access policy that requires MFA for guest users
Why it's wrong here
Conditional Access policies apply only to your tenant, not to the partner's controls.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often assume a Conditional Access policy (Option D) is the standard way to enforce MFA for guests, but they overlook the cross-tenant trust mechanism that allows the partner to manage their own MFA without guest user registration in the resource tenant.
Detailed technical explanation
How to think about this question
Cross-tenant access settings leverage the inbound trust settings to accept security tokens (including MFA claims) issued by the partner's Entra ID tenant. When you trust MFA, the partner's users are not prompted to re-authenticate with MFA in your tenant; instead, their existing MFA session from their home tenant is honored, reducing friction while maintaining security. This is configured under 'External Identities' > 'Cross-tenant access settings' and requires the partner tenant to also configure outbound trust settings.
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 SC-900 question in full detail.
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: Configure cross-tenant access settings to trust MFA from the partner's Microsoft Entra ID tenant — Option C is correct because cross-tenant access settings in Microsoft Entra ID allow you to trust MFA claims from an external partner's tenant. Since the partner manages their own identities, trusting their MFA ensures that guest users from that partner organization can satisfy MFA requirements using their own Microsoft Authenticator without needing to register again in your tenant.
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.
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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