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 environment-specific customizations on top of a base
Kustomize overlays allow customizing a base configuration for different environments (e.g., dev, prod) by applying patches without modifying the base.
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 apply environment-specific customizations on top of a base
Why this is correct
Overlays use patches to modify the base for specific environments.
- ✗
To merge multiple Kubernetes manifests into one
Why it's wrong here
Kustomize can combine multiple resources, but that is not specific to overlays.
- ✗
To template variables into YAML files
Why it's wrong here
Kustomize does not support templating; it uses patches.
- ✗
To define the base configuration of an application
Why it's wrong here
That is the purpose of a base, not an overlay.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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