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.
Which THREE Microsoft 365 services can be used to store and manage files in the cloud?
OneDrive for Business
OneDrive stores personal files in the cloud.
Microsoft Teams
Teams stores files in SharePoint, so it's a method of file management.
Power BI
Why wrong: Power BI is for data visualization, not file storage.
SharePoint
SharePoint stores team files in the cloud.
Exchange Online
Why wrong: Exchange is for email, not file storage.
Answer choices
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 is a cloud storage service that allows users to store, sync, and share files individually. It is part of Microsoft 365 and provides personal storage with up to 1 TB per user, integrating with Office apps for real-time co-authoring.
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.
OneDrive for Business
Why this is correct
OneDrive stores personal files in the cloud.
Related concept
Read the scenario before looking for a memorised answer.
Microsoft Teams
Why this is correct
Teams stores files in SharePoint, so it's a method of file management.
Related concept
Read the scenario before looking for a memorised answer.
Power BI
Why it's wrong here
Power BI is for data visualization, not file storage.
SharePoint
Why this is correct
SharePoint stores team files in the cloud.
Related concept
Read the scenario before looking for a memorised answer.
Exchange Online
Why it's wrong here
Exchange is for email, not file storage.
Common exam traps
The trap here is that Microsoft Teams is listed as a correct answer because it can store files via its Files tab (which actually uses SharePoint or OneDrive under the hood), but candidates often confuse Teams as a primary storage service rather than a collaboration hub that relies on underlying storage services.
Detailed technical explanation
OneDrive for Business uses the same sync engine as SharePoint, leveraging the REST API and the File Sync Protocol (FSP) to synchronize files locally. Under the hood, files are stored in SharePoint document libraries, but OneDrive presents a user-specific view. In a real-world scenario, a user might store a draft report in OneDrive, then move it to a SharePoint team site for broader collaboration, all while maintaining version history and compliance policies.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
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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: OneDrive for Business — OneDrive for Business is a cloud storage service that allows users to store, sync, and share files individually. It is part of Microsoft 365 and provides personal storage with up to 1 TB per user, integrating with Office apps for real-time co-authoring.
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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