KCSA Overview OF Cloud Native Security Practice Question
A security incident response team discovers that a vulnerability in a third-party Python library allowed remote code execution inside a pod. In the context of defense-in-depth and the 4Cs, which layer primarily failed or was unmitigated, requiring remediation at the source?
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
✓
Code layer
Vulnerabilities in third-party libraries reside directly within application code and dependencies, placing this remediation squarely in the Code 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.
- ✗
Cloud layer
Why it's wrong here
The cloud infrastructure did not cause the library vulnerability.
- ✗
Cluster layer
Why it's wrong here
Cluster security governs Kubernetes controls, not app-level dependencies.
- ✗
Container layer
Why it's wrong here
While container images package the code, the vulnerability stems from the code/dependencies themselves.
- ✓
Code layer
Why this is correct
Third-party library vulnerabilities are addressed at the Code layer via dependency scanning and patching.
About these practice questions
This KCSA question is part of Courseiva's 320-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 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.