This MS-900 practice question tests your understanding of describe cloud concepts. 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.
During a Microsoft 365 planning workshop, explain why Microsoft 365 is cloud-based despite local Office apps. Cloud concept or benefit best matches this requirement?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Cloud-hosted service backend
Microsoft 365 is considered cloud-based because its core services—such as Exchange Online, SharePoint Online, and the Microsoft 365 admin portal—are hosted and managed in Microsoft's cloud datacenters. Even though local Office apps (e.g., Word, Excel) run on the client device, they rely on a cloud-hosted service backend for licensing validation, data synchronization, and feature updates. This backend enables centralized management, automatic updates, and seamless integration with cloud services like OneDrive and Teams, which is the defining characteristic of a cloud-based platform.
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.
✗
Microsoft Planner
Why it's wrong here
Planner manages tasks and does not describe this cloud model or benefit.
✓
Cloud-hosted service backend
Why this is correct
The local Office apps connect to cloud services such as Exchange Online, OneDrive, SharePoint, Teams, and identity services.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Data Loss Prevention (DLP)
Why it's wrong here
DLP protects sensitive information from inappropriate sharing, not this cloud concept.
✗
Sensitivity labels
Why it's wrong here
Sensitivity labels classify and protect content, not this cloud concept.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates mistakenly think local Office apps mean the solution is not cloud-based, but Microsoft 365 is defined by its cloud-hosted backend that manages licensing, data, and updates, not by where the application code executes.
Detailed technical explanation
How to think about this question
The cloud-hosted service backend includes components like the Microsoft 365 subscription service (which validates licenses via Azure Active Directory), the Office Content Delivery Network (CDN) for streaming updates, and the Exchange Online/SharePoint Online APIs that handle data synchronization. For example, when a user opens a locally installed Word app, it contacts the Microsoft 365 licensing endpoint (e.g., `licensing.mp.microsoft.com`) to verify the subscription status and enable premium features. This backend dependency ensures that even offline-capable apps remain tightly integrated with cloud services, a model often referred to as 'connected experiences' in Microsoft documentation.
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 cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this MS-900 question in full detail.
Describe cloud concepts — This question tests Describe cloud concepts — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Cloud-hosted service backend — Microsoft 365 is considered cloud-based because its core services—such as Exchange Online, SharePoint Online, and the Microsoft 365 admin portal—are hosted and managed in Microsoft's cloud datacenters. Even though local Office apps (e.g., Word, Excel) run on the client device, they rely on a cloud-hosted service backend for licensing validation, data synchronization, and feature updates. This backend enables centralized management, automatic updates, and seamless integration with cloud services like OneDrive and Teams, which is the defining characteristic of a cloud-based platform.
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.
Are there clue words in this question I should notice?
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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