CKA · domain
Cluster Architecture, Installation & Configuration
Practise Certified Kubernetes Administrator CKA Cluster Architecture, Installation & Configuration practice questions — original exam-style scenarios with answer choices, explanations, and analysis of common mistakes.
Focused practice
Practice Cluster Architecture, Installation & Configuration questions
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What this domain covers
What to know about Cluster Architecture, Installation & Configuration
Cluster Architecture, Installation & Configuration questions test whether you can apply the concept in context, not just recognise a definition.
How the topic appears in realistic exam-style scenarios.
Which detail in the question changes the correct answer.
How to eliminate plausible but wrong options.
How to connect the question back to the wider exam objective.
Watch out for
Common Cluster Architecture, Installation & Configuration exam traps
- ▸Answering from memory before reading the full scenario.
- ▸Missing a constraint such as cost, availability, security, scope or command context.
- ▸Choosing a broad answer when the question asks for the most specific fix.
- ▸Ignoring why the wrong options are tempting.
Question index
All Cluster Architecture, Installation & Configuration questions (5)
Click any question to see the full explanation, or start a practice session above.
A Kubernetes cluster is running with a single control plane node. The administrator wants to add a second control plane node for high availability. What is the first step after the new node has been provisioned with the required software?
Medium2A DevOps engineer notices that the kubelet on a node is unable to register with the Kubernetes API server. The kubelet logs show 'Failed to get bootstrap CA certificate' and the node is not yet part of the cluster. What is the most likely cause?
Hard3A DevOps engineer is designing a Kubernetes cluster for a production environment. Which of the following is a best practice for etcd deployment?
Medium4An administrator is tasked with setting up a new Kubernetes cluster using kubeadm. They have two nodes: one control plane and one worker. After initializing the control plane with 'kubeadm init', the worker node fails to join with the error 'error execution phase preflight: [preflight] Some fatal errors occurred: [ERROR CRI]: container runtime is not running'. What should the administrator check first?
Easy5A team is configuring etcd for a multi-node Kubernetes cluster. They want to ensure that etcd data is encrypted at rest. Which approach should they use?
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Frequently asked questions
- What does the Cluster Architecture, Installation & Configuration domain cover on the CKA exam?
- Cluster Architecture, Installation & Configuration questions test whether you can apply the concept in context, not just recognise a definition.
- How many questions are in this domain?
- This page lists all 5 Cluster Architecture, Installation & Configuration questions in the CKA question bank. The actual exam draws from this domain proportionally to its weighting in the official exam blueprint.
- What is the best way to practise this domain?
- Start with a short focused session (10 questions) to identify gaps, then work through explanations. Repeat with a longer session once the weak areas feel solid.
- Can I practise only Cluster Architecture, Installation & Configuration questions?
- Yes — the session launcher on this page filters questions to this domain only. Choose any session length for inline explanations and scoring.