KCNA Container Orchestration Practice Question
A company is deploying a microservices application on Kubernetes. They want to ensure that configuration data, such as database URLs and feature flags, can be updated without rebuilding container images. Which Kubernetes resource should they use?
⚠ Common exam trap
Many exam-takers confuse ConfigMaps with Secrets, assuming that all configuration must be stored in Secrets, but the KCNA exam tests the distinction that ConfigMaps are for non-sensitive data and Secrets are for sensitive data.
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
✓
ConfigMaps
ConfigMaps are the correct Kubernetes resource for decoupling configuration data (like database URLs and feature flags) from container images. They allow you to inject configuration as environment variables or mounted volumes without rebuilding or redeploying the container image, enabling runtime updates.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Secrets
Why it's wrong here
Secrets are for sensitive data like passwords, not general configuration.
- ✗
Services
Why it's wrong here
Services provide network access to pods, not configuration.
- ✗
Deployments
Why it's wrong here
Deployments manage replica sets and rolling updates, not configuration data.
- ✓
ConfigMaps
Why this is correct
ConfigMaps store non-sensitive configuration data that can be consumed by pods.
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JA
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.