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. A key principle to apply: public cloud infrastructure is owned and managed by a third-party provider.. 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.
While preparing a Microsoft 365 adoption plan, a consultant is asked to use provider-managed infrastructure shared by multiple customers. 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
✓
Public cloud
The requirement for provider-managed infrastructure shared by multiple customers directly maps to the public cloud deployment model. In a public cloud, the cloud provider owns and manages the physical hardware, software, and supporting infrastructure, which is shared across multiple tenants (multi-tenancy). This is the core definition of public cloud as opposed to private or hybrid models.
Key principle: Public cloud infrastructure is owned and managed by a third-party provider.
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 this is correct
Public cloud services run on provider-managed shared infrastructure with logical separation between customers.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Public cloud infrastructure is owned and managed by a third-party provider.
✗
Data Loss Prevention (DLP)
Why it's wrong here
DLP protects sensitive information from inappropriate sharing, not this cloud concept.
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Sensitivity labels
Why it's wrong here
Sensitivity labels classify and protect content, not this cloud concept.
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Microsoft Planner
Why it's wrong here
Planner manages tasks and does not describe this cloud model or benefit.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may confuse a specific Microsoft 365 feature (like DLP or sensitivity labels) with a cloud deployment model, failing to recognize that the question is asking about the fundamental cloud concept of shared, provider-managed infrastructure, not a security or productivity tool.
Detailed technical explanation
How to think about this question
Public cloud relies on multi-tenancy architecture where a single instance of software and its supporting infrastructure serves multiple customers (tenants), with logical isolation enforced through tenant IDs and access control lists. Microsoft 365 uses Azure Active Directory as the identity backbone, where each tenant is uniquely identified by a GUID and all customer data is stored in isolated partitions within shared storage pools. This model allows Microsoft to achieve economies of scale while maintaining compliance with standards like ISO 27001 and SOC 2.
KKey Concepts to Remember
Public cloud infrastructure is owned and managed by a third-party provider.
Resources in a public cloud are shared among multiple customers.
Public cloud offers high scalability and cost-effectiveness.
Logical separation ensures data privacy for each customer in a public cloud.
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
Public cloud infrastructure is owned and managed by a third-party provider.
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. Public cloud infrastructure is owned and managed by a third-party provider. 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.
Review public cloud infrastructure is owned and managed by a third-party provider., then practise related MS-900 questions on the same topic to reinforce the concept.
Describe cloud concepts — This question tests Describe cloud concepts — Public cloud infrastructure is owned and managed by a third-party provider..
What is the correct answer to this question?
The correct answer is: Public cloud — The requirement for provider-managed infrastructure shared by multiple customers directly maps to the public cloud deployment model. In a public cloud, the cloud provider owns and manages the physical hardware, software, and supporting infrastructure, which is shared across multiple tenants (multi-tenancy). This is the core definition of public cloud as opposed to private or hybrid models.
What should I do if I get this MS-900 question wrong?
Review public cloud infrastructure is owned and managed by a third-party provider., then practise related MS-900 questions on the same topic to reinforce the concept.
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?
Public cloud infrastructure is owned and managed by a third-party provider.
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