KCSA Kubernetes Security Fundamentals Practice Question
An administrator needs to restrict access so that a specific ServiceAccount in the production namespace can only list pods, but cannot delete or modify them. Which core Kubernetes API resource should be configured to achieve this using RBAC?
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
✓
Role combined with a RoleBinding
A Role defines permissions within a particular namespace. By binding a Role to a ServiceAccount via a RoleBinding, permissions are restricted strictly to that namespace.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
ValidatingWebhookConfiguration
Why it's wrong here
ValidatingWebhookConfigurations are admission controllers used to intercept and validate requests, not for standard RBAC authorization.
- ✗
ClusterRole combined with a ClusterRoleBinding
Why it's wrong here
ClusterRoles grant cluster-scoped permissions, which violates the principle of least privilege for a namespace-specific restriction.
- ✗
PodSecurityPolicy
Why it's wrong here
PodSecurityPolicies are deprecated and used for restricting pod security features, not API verbs like list or delete.
- ✓
Role combined with a RoleBinding
Why this is correct
A Role and RoleBinding limit permissions to a single namespace, perfect for restricting a specific ServiceAccount.
Quick reference
Access Control Model Comparison
| Model | Acronym | Who Controls Access? | Best For |
|---|---|---|---|
| Discretionary Access Control | DAC | Resource owner | Small teams, file shares |
| Mandatory Access Control | MAC | System / security labels | Classified govt / military |
| Role-Based Access Control | RBAC | Administrator (via roles) | Enterprise environments |
| Attribute-Based Access Control | ABAC | Policy engine (user + resource attributes) | Fine-grained, dynamic policies |
| Rule-Based Access Control | RuBAC | System rules / ACLs | Firewall rules, network ACLs |
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.