KCNA Cloud Native Architecture Practice Question
A team is building a serverless application using Knative. They want the application to scale to zero when idle. Which Knative resource type 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
✓
Knative Serving
Knative Serving manages serverless workloads and supports automatic scaling to zero when no requests are incoming.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Knative Serving
Why this is correct
Serving provides scale-to-zero capability.
- ✗
Knative Trigger
Why it's wrong here
Triggers are part of Eventing.
- ✗
Knative Build
Why it's wrong here
Build is deprecated; it handles building container images.
- ✗
Knative Eventing
Why it's wrong here
Eventing is for event-driven architectures, not scaling to zero.
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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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This KCNA practice question is part of Courseiva's free CNCF 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 KCNA exam.