This MS-900 practice question tests your understanding of describe microsoft 365 apps and services. 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.
A manager wants to create a team site to collaborate with external partners on a project. They need to share documents with external users and control permissions. Which Microsoft 365 service should they use?
Microsoft Viva Connections
Why wrong: Viva Connections is a dashboard app.
Microsoft Teams
Why wrong: Teams is for communication, not document management.
OneDrive for Business
Why wrong: OneDrive is intended for personal, not team, file storage.
SharePoint Online
SharePoint team sites allow external sharing and granular permissions.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
SharePoint Online
SharePoint Online is the correct choice because it provides team sites with granular permission controls, including the ability to share documents with external users via secure links or direct invitations. It supports external sharing at the site level, allowing the manager to collaborate with partners while maintaining control over permissions and document access.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Microsoft Viva Connections
Why it's wrong here
Viva Connections is a dashboard app.
Microsoft Teams
Why it's wrong here
Teams is for communication, not document management.
OneDrive for Business
Why it's wrong here
OneDrive is intended for personal, not team, file storage.
SharePoint Online
Why this is correct
SharePoint team sites allow external sharing and granular permissions.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
The trap here is that candidates often confuse Microsoft Teams as the primary collaboration tool for external sharing, but Teams relies on SharePoint for file storage and permission management, making SharePoint the correct answer when the question emphasizes creating a team site and controlling permissions.
Detailed technical explanation
SharePoint Online uses site collections and permission inheritance models, where external sharing can be enabled at the tenant, site, or even folder level via Azure AD B2B integration. When a manager creates a team site, they can set external sharing to 'Anyone' (anonymous links), 'New and existing guests' (authenticated users), or 'Existing guests' only, allowing precise control over partner access. In real-world scenarios, this is often used for project-based collaboration where partners need access to specific document libraries without full tenant access.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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
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FAQ
Describe Microsoft 365 apps and services — This question tests Describe Microsoft 365 apps and services — Read the scenario before looking for a memorised answer..
The correct answer is: SharePoint Online — SharePoint Online is the correct choice because it provides team sites with granular permission controls, including the ability to share documents with external users via secure links or direct invitations. It supports external sharing at the site level, allowing the manager to collaborate with partners while maintaining control over permissions and document access.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
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