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.
A healthcare organization must keep sensitive patient data on-premises due to regulatory compliance, but wants to use cloud services for other applications like customer relationship management and collaboration. Which cloud deployment model best meets 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.
Why wrong: Public cloud resources are owned and operated by a third-party provider and are shared across multiple tenants; sensitive data cannot be kept on-premises.
B
Private cloud
Why wrong: A private cloud is dedicated to a single organization but still off-premises; it does not inherently allow integration with on-premises systems for sensitive data.
C
Hybrid cloud
A hybrid cloud combines on-premises infrastructure with public cloud services, enabling data to remain on-premises while using the cloud for other needs.
D
Community cloud
Why wrong: A community cloud is shared by several organizations with common concerns, but it does not specifically support keeping data on-premises.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Hybrid cloud
The hybrid cloud model is correct because it allows the healthcare organization to keep sensitive patient data on-premises (private cloud) for regulatory compliance (e.g., HIPAA), while leveraging public cloud services for customer relationship management and collaboration tools like Microsoft Dynamics 365 and Microsoft 365. This deployment model provides a unified environment where workloads can be distributed across on-premises and cloud infrastructure, ensuring data sovereignty and compliance without sacrificing scalability or cost efficiency.
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.
✗
Public cloud
Why it's wrong here
Public cloud resources are owned and operated by a third-party provider and are shared across multiple tenants; sensitive data cannot be kept on-premises.
✗
Private cloud
Why it's wrong here
A private cloud is dedicated to a single organization but still off-premises; it does not inherently allow integration with on-premises systems for sensitive data.
✓
Hybrid cloud
Why this is correct
A hybrid cloud combines on-premises infrastructure with public cloud services, enabling data to remain on-premises while using the cloud for other needs.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Community cloud
Why it's wrong here
A community cloud is shared by several organizations with common concerns, but it does not specifically support keeping data on-premises.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse 'private cloud' as the only compliant option for sensitive data, overlooking that hybrid cloud allows the organization to meet compliance for specific workloads while still benefiting from public cloud economics for others.
Detailed technical explanation
How to think about this question
In a hybrid cloud, technologies like Azure Arc or AWS Outposts enable consistent management and policy enforcement across on-premises and cloud environments, often using VPNs or ExpressRoute for secure connectivity. For healthcare, this can involve running Azure SQL Database with customer-managed keys on-premises via Azure Stack HCI, while using Azure Active Directory for unified identity across both domains. A real-world scenario is a hospital using Microsoft 365 for email and Teams collaboration, while keeping electronic health records (EHRs) in an on-premises SQL Server cluster to meet HIPAA data residency requirements.
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 startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
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: Hybrid cloud — The hybrid cloud model is correct because it allows the healthcare organization to keep sensitive patient data on-premises (private cloud) for regulatory compliance (e.g., HIPAA), while leveraging public cloud services for customer relationship management and collaboration tools like Microsoft Dynamics 365 and Microsoft 365. This deployment model provides a unified environment where workloads can be distributed across on-premises and cloud infrastructure, ensuring data sovereignty and compliance without sacrificing scalability or cost efficiency.
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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