KCSA Kubernetes Security Fundamentals Practice Question
Which TWO components are core parts of the Kubernetes authorization architecture? (Choose TWO)
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
✓
Webhook Authorization
RBAC and Webhook are authorization modes evaluated by the API server after authentication.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Webhook Authorization
Why this is correct
Kubernetes supports external authorization via webhook token/request evaluation.
- ✓
Role-Based Access Control (RBAC)
Why this is correct
RBAC is the primary built-in authorization mechanism in Kubernetes.
- ✗
CoreDNS service discovery
Why it's wrong here
CoreDNS handles DNS resolution inside the cluster.
- ✗
Kubelet node daemon
Why it's wrong here
Kubelet manages node resources and local containers, not cluster authorization.
- ✗
etcd key-value datastore
Why it's wrong here
etcd stores cluster state, whereas authorization decisions are made by the API server.
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
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.