KCSA Kubernetes Threat Model Practice Question
An auditor notices that a cluster allows users to create Pods that mount host paths (`hostPath`). Which threat does this pose to the underlying node integrity?
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
✓
Arbitrary read/write access to the host filesystem, enabling node compromise
hostPath mounts allow containers to read and write directly to the host node's filesystem, enabling attackers to tamper with system files, cron jobs, or SSH authorized keys for node takeover.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Arbitrary read/write access to the host filesystem, enabling node compromise
Why this is correct
Mounting host directories lets a compromised container modify critical host files, leading directly to host takeover.
- ✗
Automatic failure of Kubernetes liveness and readiness health probes
Why it's wrong here
hostPath volumes do not interfere with kubelet health probe execution.
- ✗
Inability of the CNI plugin to assign IP addresses to pods
Why it's wrong here
IP assignment is managed by the CNI and IPAM plugins, unaffected by hostPath usage.
- ✗
Immediate corruption of the etcd distributed consensus state
Why it's wrong here
Worker node host paths are separate from control plane etcd data stores.
About these practice questions
One of 320 original KCSA 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 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.