KCNA Kubernetes Fundamentals Practice Question
Which TWO components are part of the Kubernetes control plane? (Select exactly two.)
⚠ Common exam trap
CNCF often tests the distinction between control plane and worker node components, and the trap here is that candidates confuse kube-proxy or kubelet (which run on every node) with control plane components because they are essential for cluster operation, but they are not part of the control plane itself.
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
✓
kube-apiserver
The kube-apiserver is the front-end of the Kubernetes control plane, exposing the Kubernetes API for all cluster operations. The kube-scheduler is responsible for assigning newly created pods to nodes based on resource availability and policy constraints. Both are essential control plane components that manage cluster state and scheduling decisions.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
kube-proxy
Why it's wrong here
kube-proxy runs on worker nodes.
- ✗
kubelet
Why it's wrong here
kubelet runs on worker nodes.
- ✗
container runtime
Why it's wrong here
Container runtime runs on worker nodes.
- ✓
kube-apiserver
Why this is correct
API server is a control plane component.
- ✓
kube-scheduler
Why this is correct
Scheduler is a control plane component.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This KCNA practice question is part of Courseiva's free CNCF 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 KCNA exam.