The correct answer is the hybrid cloud deployment model. This model is defined by its combination of on-premises infrastructure, such as a private cloud or local datacenter, with public cloud services, allowing data and applications to be shared between both environments. This architecture is chosen because it offers the best of both worlds: organizations can keep sensitive or regulated workloads on-premises for security and control, while leveraging the public cloud’s scalability for burst capacity, development, or less critical tasks, often connected through secure links like VPNs or dedicated circuits such as Azure ExpressRoute. On the Microsoft Azure Fundamentals AZ-900 exam, this concept tests your understanding of deployment model distinctions; a common trap is confusing hybrid with multi-cloud, but remember that hybrid specifically involves a connection to on-premises infrastructure, not just multiple public clouds. A useful memory tip is to think of the word “hybrid” as a “hybrid car” that combines two power sources—here, your own datacenter and the public cloud—working together seamlessly.
AZ-900 Describe cloud concepts Practice Question
This AZ-900 practice question tests your understanding of describe cloud concepts. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.
Which type of cloud deployment model uses a combination of on-premises infrastructure and public cloud services?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Hybrid cloud
Option C is correct because a hybrid cloud deployment model explicitly combines on-premises infrastructure (private cloud or local datacenter) with public cloud services, allowing data and applications to be shared between them. This enables organizations to keep sensitive workloads on-premises while leveraging the scalability of public cloud for burst capacity or less critical workloads, often connected via VPN or dedicated circuits like Azure ExpressRoute.
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 is exclusively hosted by the cloud provider with no on-premises component.
✗
Private cloud
Why it's wrong here
Private cloud is hosted entirely on-premises or in a dedicated environment without public cloud integration.
✓
Hybrid cloud
Why this is correct
Hybrid cloud combines on-premises (private) infrastructure with public cloud services.
Related concept
Read the scenario before looking for a memorised answer.
✗
Multi-cloud
Why it's wrong here
Multi-cloud uses multiple public cloud providers; hybrid specifically combines on-premises and public cloud.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse hybrid cloud with multi-cloud, mistakenly thinking that using multiple public clouds (multi-cloud) inherently includes on-premises resources, but hybrid cloud specifically requires a combination of on-premises and public cloud, not just multiple public clouds.
Detailed technical explanation
How to think about this question
Under the hood, hybrid cloud often relies on site-to-site VPNs or dedicated private connections like Azure ExpressRoute or AWS Direct Connect to establish low-latency, secure links between on-premises networks and the public cloud. This enables unified management through tools like Azure Arc or AWS Outposts, which extend cloud control planes to on-premises environments. A real-world scenario is a financial institution running sensitive transaction processing on-premises while using Azure for analytics and disaster recovery, ensuring compliance with data residency regulations.
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 AZ-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 — Option C is correct because a hybrid cloud deployment model explicitly combines on-premises infrastructure (private cloud or local datacenter) with public cloud services, allowing data and applications to be shared between them. This enables organizations to keep sensitive workloads on-premises while leveraging the scalability of public cloud for burst capacity or less critical workloads, often connected via VPN or dedicated circuits like Azure ExpressRoute.
What should I do if I get this AZ-900 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Which cloud deployment model combines on-premises infrastructure with public cloud resources, allowing data and applications to be shared between them?
easy
A.Public cloud
B.Private cloud
✓ C.Hybrid cloud
D.Community cloud
Why C: Option C is correct because a hybrid cloud deployment model explicitly combines on-premises infrastructure (private cloud or local datacenter) with public cloud resources, enabling data and application portability through technologies like VPNs, dedicated interconnects, or orchestration tools. This model allows workloads to burst to the public cloud during peak demand while keeping sensitive data on-premises, fulfilling the scenario described in the question.
Variation 2. A company is evaluating cloud deployment models. They need to keep sensitive data on-premises due to regulations but want to use Azure for development and testing workloads. Which cloud deployment model is most suitable?
easy
✓ A.Hybrid cloud
B.Public cloud
C.Private cloud
D.Community cloud
Why A: A hybrid cloud deployment model is most suitable because it combines on-premises infrastructure (private cloud) with public cloud services like Azure. This allows the company to keep sensitive data on-premises to meet regulatory compliance while leveraging Azure for development and testing workloads, which do not have the same data residency constraints.
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Question Discussion
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