- A
Private cloud
Why wrong: Private cloud is a deployment model.
- B
Platform as a Service (PaaS)
PaaS lets developers focus on code while the provider manages the platform, runtime, and underlying infrastructure.
- C
Infrastructure as a Service (IaaS)
Why wrong: IaaS still requires OS and runtime management.
- D
Software as a Service (SaaS)
Why wrong: SaaS delivers a finished application, not a custom app platform.
Question 305 of 985
Platform as a Service (PaaS) Overview
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: paaS Complete Environment. 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 tenant administrator is advising a department that wants to deploy application code without maintaining the operating system or runtime platform. Cloud concept or benefit best matches this requirement?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Platform as a Service (PaaS)
PaaS lets developers focus on code while the provider manages the platform, runtime, and underlying infrastructure.
Key principle: PaaS Complete Environment
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Private cloud
Why it's wrong here
Private cloud is a deployment model.
- ✓
Platform as a Service (PaaS)
- ✗
Infrastructure as a Service (IaaS)
Why it's wrong here
IaaS still requires OS and runtime management.
- ✗
Software as a Service (SaaS)
Why it's wrong here
SaaS delivers a finished application, not a custom app platform.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Candidates might confuse PaaS with IaaS, forgetting that IaaS still requires the user to manage the operating system.
Detailed technical explanation
How to think about this question
Platform as a Service (PaaS) is the cloud service model that directly addresses the department's requirement to deploy application code without the burden of managing the underlying operating system or runtime platform. With PaaS, the cloud provider delivers a complete development and deployment environment, including the operating system, programming language execution environment, databases, and web servers. This abstraction allows developers to focus solely on writing and deploying their application code, significantly reducing operational overhead. In this specific scenario, the department wants to deploy *their own application code*, which immediately rules out Software as a Service (SaaS) because SaaS provides a fully developed, ready-to-use application, not a platform for custom code. Furthermore, the desire to avoid maintaining the OS or runtime platform distinguishes this from Infrastructure as a Service (IaaS), where the consumer is still responsible for managing the operating system, middleware, and runtime environments, even though the underlying virtualized hardware is provided by the cloud vendor. PaaS bridges the gap between IaaS and SaaS, offering a managed platform that accelerates application development and deployment by abstracting away infrastructure complexities.
KKey Concepts to Remember
- PaaS Complete Environment
- Provider Management
- Developer Focus
- Azure App Service
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
PaaS Complete Environment
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. PaaS Complete Environment Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
Got this wrong? Here's your next step.
Review paaS Complete Environment, then practise related MS-900 questions on the same topic to reinforce the concept.
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FAQ
Questions learners often ask
What does this MS-900 question test?
Describe cloud concepts — This question tests Describe cloud concepts — PaaS Complete Environment.
What is the correct answer to this question?
The correct answer is: Platform as a Service (PaaS) — PaaS lets developers focus on code while the provider manages the platform, runtime, and underlying infrastructure.
What should I do if I get this MS-900 question wrong?
Review paaS Complete Environment, then practise related MS-900 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
PaaS Complete Environment
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Last reviewed: May 25, 2026
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