KCNA Cloud Native Application Delivery Practice Question
A platform team wants to package a Kubernetes application — including its Deployment, Service, ConfigMap, and default configuration values — into a single versioned artifact that can be installed and rolled back as one unit. Which cloud native tool is purpose-built for this?
⚠ Common exam trap
The trap here is assuming any YAML-management tool can package and version an application, when only Helm provides charts plus release revisions and rollback.
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
✓
Helm
Helm packages the Deployment, Service, ConfigMap, and default values into a chart, renders it with values at install time, and records each install as a numbered revision. That gives the team one versioned artifact plus atomic upgrade and rollback, which the other tools either cannot do or do at a different abstraction layer.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Kustomize
Why it's wrong here
Kustomize overlays and patches existing YAML without templating and has no native release or revision concept, so it cannot track installs or perform a one-command rollback to a prior packaged version. It is a configuration customization tool, not an application package manager.
- ✗
Docker Compose
Why it's wrong here
Docker Compose defines and runs multi-container applications on a single Docker host; it does not produce Kubernetes manifests, does not install workloads into a cluster, and has no concept of chart versions or release history. It is the wrong layer entirely for this requirement.
- ✗
Terraform
Why it's wrong here
Terraform manages infrastructure as code and can apply Kubernetes resources, but it does not package an application's manifests plus default values into a distributable, versioned chart, nor does it provide Kubernetes-native release revisions and rollbacks. Provisioning tooling is not the same as application packaging.
- ✓
Helm
Why this is correct
Helm is the Kubernetes package manager: it bundles related manifests into a chart, templates them with values, and tracks each install as a revision so rollbacks are a single command. That directly satisfies packaging, versioning, and atomic install/rollback for the described application.
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Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official CNCF exam blueprint
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