- A
OneDrive for Business
Why wrong: OneDrive for Business is personal cloud storage with limited sharing capabilities; it does not support multi-user co-authoring environments and version history as robustly as SharePoint for shared team repositories.
- B
SharePoint Online
SharePoint Online provides document libraries that enable multiple users to co-author documents simultaneously and offers detailed version history, making it the correct choice for a collaborative team repository.
- C
Microsoft Teams
Why wrong: Microsoft Teams is a communication and collaboration hub that integrates with SharePoint for file storage, but it is not itself a document storage service with built-in version history and co-authoring.
- D
Exchange Online
Why wrong: Exchange Online is a cloud-based email and calendar solution, not designed for document storage or collaboration.
MS-900 Describe Microsoft 365 apps and services Practice Question
This MS-900 practice question tests your understanding of describe microsoft 365 apps and services. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 sales team needs a centralized repository for customer proposals that multiple team members can edit simultaneously and that maintains version history. Which Microsoft 365 service should they use?
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
SharePoint Online
SharePoint Online is the correct choice because it provides a centralized document library where multiple users can co-author documents simultaneously, with built-in version history to track changes over time. This aligns directly with the requirement for a shared repository with real-time collaboration and versioning, which OneDrive for Business lacks for team-wide access.
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.
- ✗
OneDrive for Business
Why it's wrong here
OneDrive for Business is personal cloud storage with limited sharing capabilities; it does not support multi-user co-authoring environments and version history as robustly as SharePoint for shared team repositories.
- ✓
SharePoint Online
Why this is correct
SharePoint Online provides document libraries that enable multiple users to co-author documents simultaneously and offers detailed version history, making it the correct choice for a collaborative team repository.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Microsoft Teams
Why it's wrong here
Microsoft Teams is a communication and collaboration hub that integrates with SharePoint for file storage, but it is not itself a document storage service with built-in version history and co-authoring.
- ✗
Exchange Online
Why it's wrong here
Exchange Online is a cloud-based email and calendar solution, not designed for document storage or collaboration.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse Microsoft Teams as the file storage solution, but Teams relies on SharePoint Online for its Files tab, so the underlying service providing version history and simultaneous editing is SharePoint Online, not Teams itself.
Detailed technical explanation
How to think about this question
SharePoint Online document libraries leverage SQL Server-based storage with check-in/check-out and versioning (major and minor versions) controlled via the Content Database. Co-authoring is enabled through the Office Online Server integration, which uses WebDAV and REST APIs to synchronize edits in near real-time, with conflict resolution handled by the server. In a real-world scenario, a sales team can create a library with required fields (e.g., customer name, proposal date) and use version history to restore a previous draft if an edit is erroneous.
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.
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FAQ
Questions learners often ask
What does this MS-900 question test?
Describe Microsoft 365 apps and services — This question tests Describe Microsoft 365 apps and services — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: SharePoint Online — SharePoint Online is the correct choice because it provides a centralized document library where multiple users can co-author documents simultaneously, with built-in version history to track changes over time. This aligns directly with the requirement for a shared repository with real-time collaboration and versioning, which OneDrive for Business lacks for team-wide access.
What should I do if I get this MS-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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Last reviewed: Jun 11, 2026
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