ICA Istio Installation Upgrade And Configuration Practice Question
You are performing an in-place upgrade of Istio. You have updated the control plane, but your data plane proxies are still running the old image. What is the standard process to upgrade the proxies?
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
✓
kubectl rollout restart deployment
To upgrade the data plane proxies, you must perform a rolling restart of the pods to trigger the injector to pull the new sidecar image.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
istioctl upgrade --data-plane
Why it's wrong here
This command does not exist.
- ✓
kubectl rollout restart deployment
Why this is correct
Rolling restart is required to re-inject the updated sidecar proxy.
- ✗
kubectl patch deployment -p '{"spec":{"template":{"metadata":{"annotations":{"sidecar.istio.io/status":"update"}}}}}'
Why it's wrong here
While hacks exist, standard practice is a rolling restart.
- ✗
istioctl proxy-status --upgrade
Why it's wrong here
This command does not exist.
About these practice questions
This ICA question is part of Courseiva's 292-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
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.