This CV0-004 practice question tests your understanding of deployment. Compare every option against the stated constraints before choosing — the best answer satisfies all requirements, not just the most obvious one. 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 startup wants to develop a new web application with minimal upfront infrastructure management. They want to focus on writing code and not worry about operating system patches or scaling servers. Which cloud service model is MOST appropriate?
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)
Platform as a Service (PaaS) provides a managed platform where the startup can deploy and run their web application code without managing the underlying infrastructure, including operating system patches and server scaling. This aligns with the requirement to focus on writing code while the cloud provider handles the operational overhead.
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.
✗
Functions as a Service (FaaS)
Why it's wrong here
FaaS is suitable for event-driven functions, not for a full web application typically.
✗
Infrastructure as a Service (IaaS)
Why it's wrong here
IaaS still requires the startup to manage OS patches and scaling, which they want to avoid.
✓
Platform as a Service (PaaS)
Why this is correct
PaaS abstracts the underlying infrastructure, so the startup only writes and deploys code.
Related concept
Read the scenario before looking for a memorised answer.
✗
Software as a Service (SaaS)
Why it's wrong here
SaaS provides ready-to-use applications, not a platform for developing new applications.
Common exam traps
Common exam trap: answer the scenario, not the keyword
CompTIA often tests the distinction between PaaS and FaaS, where candidates mistakenly choose FaaS for any 'code-only' scenario, but FaaS is unsuitable for stateful web applications requiring persistent connections or long-running processes.
Detailed technical explanation
How to think about this question
PaaS abstracts the runtime environment, middleware, and OS, allowing developers to focus on application code using frameworks like Node.js or Django. The provider automatically handles load balancing and auto-scaling based on metrics such as CPU utilization or request count, often via integration with orchestration tools like Kubernetes. A real-world example is deploying a web app on AWS Elastic Beanstalk, where the developer uploads code and the service manages capacity provisioning and patching.
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 small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Deployment — This question tests Deployment — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Platform as a Service (PaaS) — Platform as a Service (PaaS) provides a managed platform where the startup can deploy and run their web application code without managing the underlying infrastructure, including operating system patches and server scaling. This aligns with the requirement to focus on writing code while the cloud provider handles the operational overhead.
What should I do if I get this CV0-004 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.
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Question Discussion
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