ICA Istio Installation Upgrade And Configuration Practice Question
When planning an Istio upgrade, which THREE steps are critical for a canary upgrade strategy?
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
✓
Install the new version as a separate revision
Canary upgrades require installing a new revision, updating the namespace label, and then performing a rolling restart of the application pods.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Install the new version as a separate revision
Why this is correct
Required for parallel control planes.
- ✓
Update the 'istio.io/rev' label on the target namespace
Why this is correct
Directs pods to the new control plane.
- ✗
Perform an in-place upgrade of the existing istiod
Why it's wrong here
This is an in-place, not canary, upgrade.
- ✗
Delete the old IstioOperator CR
Why it's wrong here
Deleting the CR would remove the control plane.
- ✓
Restart the application pods in the namespace
Why this is correct
Required to pick up the new proxy injection.
About these practice questions
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official CNCF / Linux Foundation exam blueprint
This ICA practice question is part of Courseiva's free CNCF / Linux Foundation 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 ICA exam.