KCSA Compliance And Security Frameworks Practice Question
An organization requires compliance auditing of etcd access to ensure unauthorized clients cannot communicate with the data store. According to CIS benchmarks, how should etcd client communication be secured?
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
✓
Mutual TLS (mTLS) client certificates
CIS benchmarks require etcd client communication to be authenticated and encrypted using mutual TLS (mTLS).
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
IPsec tunnel encapsulation
Why it's wrong here
IPsec secures network transport layers but does not replace application-level mTLS for etcd.
- ✓
Mutual TLS (mTLS) client certificates
Why this is correct
CIS benchmarks dictate that etcd client-server communication must use client certificates (mTLS).
- ✗
HTTP with token bearer headers
Why it's wrong here
etcd native client port does not support standard HTTP bearer tokens in this manner without proxy.
- ✗
Plaintext loopback interface binding
Why it's wrong here
Binding to localhost without TLS fails compliance requirements.
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 KCSA 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 KCSA exam.