Describe Microsoft 365 apps and services →easyMultiple Choice

MS-900 Describe Microsoft 365 apps and services Practice Question

A user needs to access their work files from a personal device without storing a copy locally. Which Microsoft 365 app should they use?

⚠ Common exam trap

Test-takers frequently confuse SharePoint's web-based access with the ability to prevent local storage, overlooking that OneDrive for Business is the only option with a dedicated Files On-Demand feature that explicitly avoids storing a full copy locally on personal devices.

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

✓

OneDrive for Business

OneDrive for Business enables users to access work files from any device via the cloud, with the option to stream files on demand without downloading them locally. This is achieved through Files On-Demand, which uses placeholder files and syncs only metadata, ensuring no full copy is stored on the personal device unless explicitly made available offline.

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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Microsoft Outlook
Why it's wrong here
Outlook is a mail and calendaring client, not a file storage service. While it can attach files and access OneDrive for Business via links when composing, it does not provide the on-demand file streaming or file sync capabilities needed to access work files directly from a personal device. The question specifically addresses file access, which is outside Outlook's core function.
✓
OneDrive for Business
Why this is correct
OneDrive for Business is the correct answer because it provides Files On-Demand, which lets users access all their work files in the cloud without requiring them to be downloaded to the device. When a user signs into OneDrive for Business with their work account on a personal device, they can stream files from the cloud, browse the entire library, and open files on demand, consuming minimal local storage. It is specifically designed to give users a personal document library that syncs across work and personal devices while maintaining compliance and security policies.
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Microsoft Teams
Why it's wrong here
Microsoft Teams is a collaboration hub that can access files shared in teams and channels, but those files are stored in SharePoint document libraries and are typically synced to the device via the OneDrive sync app when accessed. The primary purpose of Teams is not providing a user's personal work file storage; it is for chat, meetings, and collaborative workspaces. Requiring a user to navigate into a specific team channel to find a file is less direct than the personal, on-demand library that OneDrive for Business offers, and it relies on the underlying SharePoint sync engine.
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Microsoft SharePoint
Why it's wrong here
Microsoft SharePoint is a web-based platform for organizational content management, and while it can store work files, it is primarily accessed through a browser or by syncing document libraries with the OneDrive client. Opening files directly from SharePoint on a personal device typically requires either a browser session with appropriate permissions or configuring sync, which can require significant local storage and setup. For a user who needs to access their personal work files from a personal device, SharePoint is overkill and does not provide the same seamless, on-demand, personal library experience that OneDrive for Business does.

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MS-900 Describe Microsoft 365 apps and services Practice Question

Why each option matters

Option-by-option breakdown

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