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 non-profit organization, NPO Global, uses Microsoft 365 Nonprofit Business Basic. The organization has 200 users and is growing. They need to: 1. Create a central repository for storing and sharing documents with external partners. 2. Allow multiple users to co-author documents in real time. 3. Provide a secure way for external partners to access only specific folders. 4. Maintain version history for all documents. Which Microsoft 365 app should the organization primarily use?
Microsoft SharePoint
Provides document libraries, co-authoring, version history, and external sharing.
Microsoft Teams
Why wrong: Uses SharePoint for files, but SharePoint is the underlying service.
Microsoft Power Apps
Why wrong: For building custom apps, not document management.
Microsoft OneDrive
Why wrong: Best for personal files, not centralized team repository.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Microsoft SharePoint
Microsoft SharePoint is the correct primary app because it provides a centralized document repository with granular permission controls, enabling external sharing of specific folders via secure links. It supports real-time co-authoring through Office Online integration and maintains version history for all documents, meeting all four requirements.
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 SharePoint
Why this is correct
Provides document libraries, co-authoring, version history, and external sharing.
Related concept
Read the scenario before looking for a memorised answer.
Microsoft Teams
Why it's wrong here
Uses SharePoint for files, but SharePoint is the underlying service.
Microsoft Power Apps
Why it's wrong here
For building custom apps, not document management.
Microsoft OneDrive
Why it's wrong here
Best for personal files, not centralized team repository.
Common exam traps
The trap here is that candidates often confuse Microsoft Teams as a document management tool because it integrates with SharePoint, but Teams lacks the granular folder-level external sharing and centralized repository focus that SharePoint provides natively.
Detailed technical explanation
SharePoint uses site collections and permission inheritance to control access at the folder level via unique permissions, breaking inheritance to isolate external partners. Real-time co-authoring leverages the Office Online Server (formerly Office Web Apps) and the co-authoring protocol (Cobalt), which uses a lock-free merge model to handle simultaneous edits. Version history in SharePoint stores each document version as a separate blob in the content database, with a configurable limit (default 500 versions) and the ability to restore or view previous versions.
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: Microsoft SharePoint — Microsoft SharePoint is the correct primary app because it provides a centralized document repository with granular permission controls, enabling external sharing of specific folders via secure links. It supports real-time co-authoring through Office Online integration and maintains version history for all documents, meeting all four requirements.
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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