KCSA Overview OF Cloud Native Security Practice Question
An organization is performing a threat modeling exercise for a Kubernetes cluster. They identify that an attacker could exploit a vulnerability in the container runtime (e.g., containerd) to access the underlying host. Which of the 4Cs does the container runtime belong to?
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
✓
Container layer
The container runtime executes containers and interfaces with the kernel, placing it in the Container layer.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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Cloud layer
Why it's wrong here
Runtime software runs on the node, not in the cloud provider control plane.
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Cluster layer
Why it's wrong here
While installed alongside cluster components, the runtime specifically manages containers.
- ✓
Container layer
Why this is correct
The container runtime and container engine belong to the Container layer.
- ✗
Code layer
Why it's wrong here
Runtimes execute images, not code source files.
About these practice questions
Courseiva writes every KCSA question from scratch — 319 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or 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 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.