ICA Securing Workloads Practice Question
Which THREE actions are required to successfully secure a workload using OIDC and JWT authentication in Istio?
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
✓
Define a RequestAuthentication resource specifying the issuer and jwksUri.
To use JWT, you must define a RequestAuthentication policy, ensure the workload accepts the token, and use an AuthorizationPolicy to enforce 'DENY' or 'ALLOW' based on claims.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Apply a PeerAuthentication resource with mode STRICT.
Why it's wrong here
PeerAuthentication is for transport security, not JWT token validation.
- ✓
Define a RequestAuthentication resource specifying the issuer and jwksUri.
Why this is correct
This tells Istio how to validate the JWT.
- ✗
Create an EnvoyFilter to parse the JWT.
Why it's wrong here
Istio natively handles JWT via RequestAuthentication.
- ✓
Ensure the application client sends the JWT in the 'Authorization: Bearer <token>' header.
Why this is correct
The token must be provided by the client in the request header for Envoy to validate it.
- ✓
Use an AuthorizationPolicy to validate specific claims like 'iss' or 'sub'.
Why this is correct
AuthorizationPolicy is used to restrict access based on the claims extracted from the JWT.
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.