KCSA Kubernetes Security Fundamentals Practice Question
A security engineer wants to apply Pod Security Standards globally across an entire namespace using the modern built-in admission mechanism. Which approach should be used?
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
✓
Apply labels such as 'pod-security.kubernetes.io/enforce=restricted' to the namespace metadata.
The Pod Security admission controller uses namespace labels (such as 'pod-security.kubernetes.io/enforce') to apply enforcement levels like privileged, baseline, or restricted.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Create a MutatingWebhookConfiguration that injects security contexts into every pod spec.
Why it's wrong here
While webhooks can modify pods, the native Pod Security admission mechanism relies on namespace labels.
- ✓
Apply labels such as 'pod-security.kubernetes.io/enforce=restricted' to the namespace metadata.
Why this is correct
Namespace labels are the standard method for configuring the Pod Security admission controller.
- ✗
Modify the kubelet configuration file on every worker node to enable restricted mode.
Why it's wrong here
Pod Security Standards are enforced via API server admission controllers, not individual kubelet configurations.
- ✗
Deploy a custom PodSecurityPolicy object targeting the namespace selector.
Why it's wrong here
PodSecurityPolicy has been removed from Kubernetes as of version 1.25.
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.