Microsoft 365 Cloud Service Model Classification

AZ-900 By islever Editorial Last updated

Describe cloud service types

Short answer

C Microsoft 365 is a SaaS solution where the vendor manages the entire stack while users consume the application.

Question

Microsoft 365 is an example of which cloud service model?
  1. infrastructure as a service (IaaS)
  2. platform as a service (PaaS)
  3. software as a service (SaaS) Correct Answer

Key Takeaways

The question tests knowledge of cloud service models, with the trap being confusion between the platform capabilities underlying M365 and the actual service delivered to users.

Microsoft 365 is classified as Software as a Service (SaaS) because it delivers complete, managed applications to end-users. This page confirms C is the correct answer and explains why it differs from IaaS or PaaS.

Common mistake: Candidates often incorrectly select Platform as a Service (PaaS) by focusing on the Azure infrastructure hosting the software rather than the fact that they are consuming the finished application.

Expert Analysis

Why the Answer Is Correct

Microsoft 365 is the definitive example of Software as a Service (SaaS). In the SaaS model, the provider hosts and manages the software application and underlying infrastructure, handling all updates and security patches. Users access the software via a web browser or thin client without managing any of the underlying cloud infrastructure, including networks, servers, operating systems, or storage.

Why the Other Options Are Wrong

Infrastructure as a Service (IaaS) provides virtualized computing resources like servers and storage (e.g., Azure Virtual Machines), which requires the user to manage the OS and applications. Platform as a Service (PaaS) offers a environment for developers to build, test, and deploy applications (e.g., Azure App Service), but Microsoft 365 is not a development platform; it is a ready-to-use productivity suite consumed directly by end-users.

Community Comment Notes

The community consensus is unanimous, with multiple users confirming that Microsoft 365 is SaaS. One commenter noted that it provides 'access to office productivity apps... that they can either install on their desktops or access on a web browser,' which aligns perfectly with the SaaS definition. Another user simply stated 'Microsoft 365 is an example of SaaS,' reinforcing the standard exam knowledge for this topic.

Exam Strategy

When identifying cloud service models, ask yourself: Who manages the stack? If you just use the app, it's SaaS. If you manage the OS but not the hardware, it's IaaS. If you deploy code but don't manage the runtime, it's PaaS.

Frequently Asked Questions

Is Microsoft 365 considered PaaS because it runs on Azure?

No. Although it runs on Azure infrastructure, the user consumes the finished application, not the platform for building apps. That makes it SaaS.

What is the difference between M365 and Azure VMs?

Azure VMs are IaaS where you manage the OS and apps. M365 is SaaS where Microsoft manages everything and you just use the software.

More AZ-900 FAQ →

Community Votes

C
100%

100% of anonymous learners picked answer C. Votes are pick records left by other test-takers — they are not the verified answer.

Discussion 7 contributions

Compiled from public community threads and reader submissions, lightly edited for clarity. Handles and vote tallies are shown as recorded, and comments reflect the views of individual contributors.

From public community threads 7

  1. RayL2nd 👍 3
    I will be taking the test Sept 20, 2024. I made sides for each question and used Chat GPT and Copilot to help check answers and compare what was stated in the discussions. I will try to provide an update after my test. Wish me luck.
  2. Super63 👍 2
    The answer is C: SaaS. Microsoft 365, (formerly Office 365) is a Software as a Service (SaaS). It provides users access to office productivity apps for email, collaboration, communication, file storage, and more that they can either install on their desktops or access on a web browser.
  3. NoursBear 👍 2
    Ughh got to the last question. But going to do further studying for the more difficult topics or stuff I have already forgotten. Will do the exam middle September probably, now it's holiday time All the best
  4. trashbox 👍 2 Answered C
    Microsoft 365 is an example of SaaS
  5. Fabrizio21 👍 1 Answered C
    True. Microsoft 365 is an example of SaaS.
Show 2 more comments
  1. emmaaa 👍 6
    omg...finally the last one@_@
  2. Romano390 👍 1 Answered C
    C it is

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