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KCNA Kubernetes Fundamentals Practice Question
Drag and drop the steps to set up a Kubernetes cluster using kubeadm into the correct order.
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
✓
Install container runtime and Kubernetes tools, then run kubeadm init on the control plane, then install a pod network plugin, then run kubeadm join on worker nodes.
First install runtime and Kubernetes tools, then init control plane, add network plugin, and join workers.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Install container runtime and Kubernetes tools, then run kubeadm init on the control plane, then install a pod network plugin, then run kubeadm join on worker nodes.
Why this is correct
This order ensures all prerequisites are met (runtime and kubeadm tools), the control plane is initialized, networking is configured via a CNI plugin, and then worker nodes join a fully functional cluster.
- ✗
Install container runtime and Kubernetes tools, then install a pod network plugin, then run kubeadm init on the control plane, then run kubeadm join on worker nodes.
Why it's wrong here
Installing the network plugin before kubeadm init is incorrect; the plugin must be applied after the control plane is initialized, otherwise pods like CoreDNS will not start.
- ✗
Run kubeadm init on the control plane, then install container runtime and Kubernetes tools, then install a pod network plugin, then run kubeadm join on worker nodes.
Why it's wrong here
kubeadm init requires the container runtime and kubeadm tools to be installed first; attempting init without them will fail.
- ✗
Install container runtime and Kubernetes tools, then run kubeadm init on the control plane, then run kubeadm join on worker nodes, then install a pod network plugin.
Why it's wrong here
Worker nodes must have the pod network plugin installed before joining, or they will not be able to communicate with the control plane and remain in a NotReady state.
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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.