KCSA Overview OF Cloud Native Security Practice Question
A developer builds a Docker container image using an outdated base image that contains known critical operating system vulnerabilities. Before deploying this image to a production Kubernetes cluster, which security practice should be enforced to detect this issue?
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
✓
Configuring static container image vulnerability scanning in the CI/CD pipeline.
Scanning container images for vulnerabilities prior to deployment targets the Container layer in the 4Cs model, ensuring vulnerable packages do not reach production clusters.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Enabling Kubernetes Role-Based Access Control (RBAC).
Why it's wrong here
RBAC controls API access, not container image contents.
- ✓
Configuring static container image vulnerability scanning in the CI/CD pipeline.
Why this is correct
Image vulnerability scanning detects known OS and package flaws in container images before deployment.
- ✗
Deploying a network mesh like Istio with mutual TLS.
Why it's wrong here
Service mesh handles service-to-service encryption and traffic management, not image vulnerabilities.
- ✗
Applying Pod Security Standards at the Restricted level.
Why it's wrong here
Pod Security Standards restrict runtime behaviors (like running as root), not image vulnerabilities.
About these practice questions
One of 319 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.