ICA Resilience And Fault Injection Practice Question
Which component is responsible for the actual enforcement of circuit breaking and fault injection?
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
✓
Envoy proxy
The Envoy proxy (sidecar) performs the enforcement based on the configuration pushed by Istiod.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Kubernetes API Server
Why it's wrong here
The API server stores the configs but does not enforce them.
- ✗
Istiod
Why it's wrong here
Istiod manages the control plane but does not enforce traffic policies on data plane packets.
- ✓
Envoy proxy
Why this is correct
Envoy is the data plane proxy that enforces the rules defined in the CRDs.
- ✗
Prometheus
Why it's wrong here
Prometheus is for monitoring, not enforcement.
- ✗
Ingress Gateway
Why it's wrong here
Only enforces rules for entry traffic, not side-to-side.
About these practice questions
One of 292 original ICA practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. 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.