KCNA Container Orchestration Practice Question
Which THREE of the following are core principles of immutable infrastructure? (Choose 3)
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
✓
Rollbacks are performed by redeploying a previous image
Immutable infrastructure means that components are replaced, not modified. This ensures consistency, reliability, and easy rollbacks. Patching running instances is mutable.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Rollbacks are performed by redeploying a previous image
Why this is correct
Since each deployment is a complete image, rollback is simply deploying an older image.
- ✗
Infrastructure is patched by applying updates to running servers
Why it's wrong here
Patching running servers is a mutable practice.
- ✓
Infrastructure components are never modified after deployment
Why this is correct
Instead of updating, you replace the entire component with a new version.
- ✓
Deployments are reproducible and consistent
Why this is correct
Immutable artifacts ensure the same image runs everywhere.
- ✗
All changes are made by updating configuration files on running instances
Why it's wrong here
This is mutable infrastructure; immutable replaces instances.
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