KCNA Cloud Native Application Delivery Practice Question
When using Kustomize, how do you apply a common label to all resources in the base?
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
✓
By setting 'commonLabels' in the kustomization.yaml
Kustomize's commonLabels field adds labels to all resources, including selectors.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
By editing each YAML file individually
Why it's wrong here
Kustomize avoids manual edits.
- ✓
By setting 'commonLabels' in the kustomization.yaml
Why this is correct
commonLabels is designed for this purpose.
- ✗
By using the 'patches' field to add labels
Why it's wrong here
patches is for strategic merge patches, not the simplest way.
- ✗
By using a Helm chart instead of Kustomize
Why it's wrong here
Kustomize has its own mechanism.
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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.