- A
Configure Microsoft Entra Cloud Sync to sync partner accounts from their on-premises AD.
Why wrong: Cloud Sync is for syncing from on-prem, not for external partners.
- B
Enable self-service sign-up for external users and configure an access review policy.
Why wrong: Self-service sign-up allows uncontrolled access.
- C
Configure Microsoft Entra B2B collaboration to invite partners, create a Conditional Access policy requiring MFA for guests, and set up an access review to remove inactive guests after 90 days.
B2B collaboration invites partners, Conditional Access enforces MFA, and access review automates removal.
- D
Create guest accounts manually and use Azure AD Domain Services to enforce MFA.
Why wrong: Manual creation is not minimized effort; AAD DS is not for external users.
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.
Your organization has a Microsoft Entra ID tenant with 5,000 users. You need to implement a solution to allow external partners to access a specific SharePoint Online site. The partners must use their own email addresses to sign in. You want to enforce multifactor authentication for all external users. Additionally, you need to ensure that external users are automatically removed from the site after 90 days. You have the following requirements:
1. Use built-in Microsoft Entra features. 2. Minimize administrative effort. 3. The solution must support automatic expiration of access.
What should you do?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"minimum / minimize"Why it matters: Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
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
Configure Microsoft Entra B2B collaboration to invite partners, create a Conditional Access policy requiring MFA for guests, and set up an access review to remove inactive guests after 90 days.
Option C is correct because Microsoft Entra B2B collaboration allows external partners to sign in with their own email addresses, and a Conditional Access policy can enforce MFA for guest users. An access review policy can automatically remove external users after 90 days of inactivity, meeting the requirement for automatic expiration with minimal administrative effort using built-in features.
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.
- ✗
Configure Microsoft Entra Cloud Sync to sync partner accounts from their on-premises AD.
Why it's wrong here
Cloud Sync is for syncing from on-prem, not for external partners.
- ✗
Enable self-service sign-up for external users and configure an access review policy.
Why it's wrong here
Self-service sign-up allows uncontrolled access.
- ✓
Configure Microsoft Entra B2B collaboration to invite partners, create a Conditional Access policy requiring MFA for guests, and set up an access review to remove inactive guests after 90 days.
Why this is correct
B2B collaboration invites partners, Conditional Access enforces MFA, and access review automates removal.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Create guest accounts manually and use Azure AD Domain Services to enforce MFA.
Why it's wrong here
Manual creation is not minimized effort; AAD DS is not for external users.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may confuse self-service sign-up (Option B) with B2B collaboration, but self-service sign-up does not support MFA enforcement or automatic expiration, while B2B collaboration with access reviews does.
Detailed technical explanation
How to think about this question
Microsoft Entra B2B collaboration uses the invitation redemption process where external users authenticate with their own identity providers (e.g., Microsoft, Google, or SAML/WS-Fed IdPs). Conditional Access policies for guest users leverage the 'Guest or external user' user type in the policy scope, and access reviews can be configured to automatically remove users based on inactivity (e.g., 90 days) using the 'Inactive users' option in the review settings. This approach integrates with SharePoint Online site permissions via Azure AD groups, ensuring seamless access control.
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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Describe the capabilities of Microsoft Entra — study guide chapter
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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: Configure Microsoft Entra B2B collaboration to invite partners, create a Conditional Access policy requiring MFA for guests, and set up an access review to remove inactive guests after 90 days. — Option C is correct because Microsoft Entra B2B collaboration allows external partners to sign in with their own email addresses, and a Conditional Access policy can enforce MFA for guest users. An access review policy can automatically remove external users after 90 days of inactivity, meeting the requirement for automatic expiration with minimal administrative effort using built-in features.
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: "minimum / minimize". Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
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
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.
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