KCNA Cloud Native Application Delivery Practice Question
A developer runs 'helm upgrade --install myapp ./mychart' and sees the release status is 'failed'. What is the most likely cause?
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
✓
The chart contains invalid Kubernetes manifests
A failed Helm upgrade usually means the Kubernetes API rejected the manifests (e.g., invalid YAML, resource conflict).
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
The chart contains invalid Kubernetes manifests
Why this is correct
Invalid manifests cause the API server to reject them, failing the release.
- ✗
The Tiller pod is not running
Why it's wrong here
Helm v3 removed Tiller; this is outdated.
- ✗
The Helm binary is outdated
Why it's wrong here
An outdated binary would cause a different error (e.g., incompatibility).
- ✗
The namespace does not exist
Why it's wrong here
Helm can create namespaces with --create-namespace flag.
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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.