Microsoft MS-900 Practice Test

MS-900 practice test: what's covered

• Microsoft 365 Fundamentals

Free MS-900 sample questions

1. A startup wants to run custom-built apps without managing the underlying operating system, patching, or runtime, while still writing their own code. Which cloud service model best fits this need?

   • A. Platform as a Service (PaaS), where the provider manages the OS, runtime, and middleware while you deploy code
   • B. Infrastructure as a Service (IaaS), where you manage the guest OS, patching, and the application stack yourself
   • C. Software as a Service (SaaS), where the provider delivers a finished application you only configure and consume
   • D. On-premises hosting, where the organization owns and manages every layer from hardware up to the application
   Show answer

   Correct: A. PaaS lets developers deploy custom code while Microsoft manages the OS, patching, and runtime, which matches the requirement. IaaS is incorrect because you must still patch and manage the guest OS. SaaS is wrong because it delivers finished apps, not a platform for your own code. On-premises is incorrect because the organization manages every layer including hardware.

2. An enterprise keeps a sensitive HR system in its own datacenter but bursts to Azure for seasonal payroll processing, connecting the two with orchestration. How is this deployment model best described?

   • A. Hybrid cloud, combining private on-premises resources with public cloud and shared orchestration between them
   • B. Public cloud only, where all workloads run on shared multi-tenant infrastructure operated by the provider
   • C. Private cloud only, where all resources stay dedicated and single-tenant within the organization's datacenter
   • D. Community cloud, where several organizations with shared concerns pool a common dedicated environment
   Show answer

   Correct: A. A hybrid model blends an on-premises private environment with public cloud and connects them, exactly the scenario described. Public-only is incorrect because some workloads remain on-premises. Private-only is wrong because Azure bursting uses public cloud. Community cloud is incorrect because it describes multiple organizations sharing one environment, not one company spanning private and public.

3. A finance director is evaluating a move from buying servers up front to a subscription cloud model and asks which financial and operational benefits apply. Which benefits accurately describe cloud computing? (Choose THREE)

   • A. Shifts spending from capital expenditure (CapEx) toward operating expenditure (OpEx) consumption-based billing
   • B. Provides elastic scalability so capacity can grow or shrink to match changing demand on the workload
   • C. Improves reliability through redundancy and geographically distributed datacenters maintained by the provider
   • D. Guarantees that no security responsibility ever rests with the customer once workloads move to the cloud
   • E. Eliminates all internet dependency because cloud services run entirely offline within the local network
   Show answer

   Correct: A and B and C. Cloud computing shifts CapEx to OpEx, offers elastic scalability, and improves reliability through redundancy, which are core MS-900 benefits. The security claim is incorrect because cloud uses a shared responsibility model where the customer keeps some duties. The offline claim is wrong because cloud services depend on internet connectivity rather than running purely on the local network.

4. A 220-seat company wants one bundle that includes the Office apps, Windows 11 Enterprise upgrade rights, plus device and identity management. Which difference between Microsoft 365 and Office 365 should guide the recommendation?

   • A. Microsoft 365 adds Windows Enterprise and Enterprise Mobility + Security on top of the Office 365 productivity apps
   • B. Office 365 includes Windows and Intune, while Microsoft 365 is limited to only the core productivity apps
   • C. Microsoft 365 and Office 365 are identical brands, so either subscription delivers the same Windows licensing
   • D. Office 365 is the newer rebrand that now contains everything formerly sold under the Microsoft 365 name
   Show answer

   Correct: A. Microsoft 365 bundles Office 365, Windows Enterprise, and EMS (Intune and Entra ID), which delivers the Windows and management requirement. The second option reverses the products and is incorrect. They are not identical, so the third option is wrong. The fourth is incorrect because Office 365 was not a rebrand of Microsoft 365; Microsoft 365 is the broader bundle.

5. A project team needs a single hub where members can chat persistently, hold video meetings, and co-author files stored on a SharePoint-backed library. Which Microsoft 365 service is designed for this collaboration?

   • A. Microsoft Teams, which combines persistent chat, channels, meetings, and SharePoint-backed file collaboration
   • B. Microsoft Bookings, which is focused on scheduling customer appointments rather than internal team chat
   • C. Microsoft Stream, which is the enterprise video service for storing and streaming recorded content
   • D. Microsoft Sway, which produces interactive presentations and newsletters rather than team workspaces
   Show answer

   Correct: A. Teams is the collaboration hub with chat, channels, meetings, and files backed by SharePoint, matching every requirement. Bookings is incorrect because it handles appointment scheduling. Stream is wrong because it is for video storage and streaming, not team chat. Sway is incorrect because it creates interactive presentations and newsletters, not collaborative team workspaces.

Last updated: 2026-10-19

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