CV0-004 Cloud Architecture and Design Practice Question
A startup wants to run code in response to events without provisioning or managing servers. Which cloud service model should they use?
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
✓
FaaS
FaaS (serverless) runs code in response to events, and the provider manages the infrastructure.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
PaaS
Why it's wrong here
PaaS still requires managing the application runtime, but not servers; however, FaaS is more event-driven and serverless.
- ✗
IaaS
Why it's wrong here
IaaS requires managing VMs and OS.
- ✓
FaaS
Why this is correct
Correct. FaaS executes code in a serverless environment.
- ✗
SaaS
Why it's wrong here
SaaS provides complete applications, not custom code execution.
Quick reference
Cloud Service Model Comparison
| Model | You Manage | Provider Manages | Examples |
|---|---|---|---|
| IaaS | OS, runtime, apps, data | Hardware, hypervisor, networking | EC2, Azure VMs, GCP Compute Engine |
| PaaS | Apps and data | OS, runtime, middleware, hardware | Elastic Beanstalk, Azure App Service |
| SaaS | Data and settings only | Everything else | Microsoft 365, Salesforce, Workday |
| FaaS / Serverless | Function code only | Infra, scaling, runtime | Lambda, Azure Functions, Cloud Run |
| CaaS | Containers and apps | Kubernetes, OS, hardware | EKS, AKS, GKE |
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CV0-004 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CV0-004 exam.