ICA Securing Workloads Practice Question
Which protocol is used for the Istio data plane mTLS communication?
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
✓
TLS 1.2/1.3
Istio uses mutual TLS (mTLS) over HTTP/2 or standard HTTP to provide encryption and identity.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
VPN
Why it's wrong here
Istio is not a VPN solution.
- ✓
TLS 1.2/1.3
Why this is correct
Istio relies on standard TLS protocols.
- ✗
SSH
Why it's wrong here
SSH is not used for data plane traffic.
- ✗
IPsec
Why it's wrong here
Istio uses TLS, not IPsec at the application layer.
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.