KCNA Cloud Native Application Delivery Practice Question
Which command is used to rollback a Helm release to a previous revision?
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
✓
helm rollback <release-name> <revision>
The `helm rollback` command rolls back a release to a specified revision. Option B (helm rollback <release-name> <revision>) is the correct command. Option A (helm history) shows revision history, not a rollback. Option C (helm install) installs a new release. Option D (helm upgrade) upgrades to a new version, not a rollback.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
helm history <release-name>
Why it's wrong here
shows revision history, not a rollback.
- ✓
helm rollback <release-name> <revision>
Why this is correct
rolls back a release to a specified revision.
- ✗
helm install <release-name>
Why it's wrong here
installs a new release.
- ✗
helm upgrade <release-name>
Why it's wrong here
upgrades to a new version, not a rollback.
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