KCNA Cloud Native Application Delivery Practice Question
In Kustomize, what is the purpose of an overlay?
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
✓
To apply patches and modifications on top of a base
Overlays in Kustomize allow you to define environment-specific customizations (e.g., dev, prod) on top of a common base configuration.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
To template values using Go templates
Why it's wrong here
Kustomize does not use templates; it uses declarative patches.
- ✓
To apply patches and modifications on top of a base
Why this is correct
Overlays contain patches that customize the base for specific environments.
- ✗
To define the base set of Kubernetes resources shared across environments
Why it's wrong here
That is the base, not overlay.
- ✗
To manage Helm releases
Why it's wrong here
Kustomize is a separate tool; overlays are not related to Helm.
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Written by Johnson Ajibi, MSc IT Security
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