Exam Format
Exam Format
The Certified Kubernetes Administrator (CKA) is a performance-based exam from the Linux Foundation / CNCF: you perform tasks in a command line against real clusters, not multiple-choice questions. Delivery is proctored online (or at test centers), typically two hours with roughly 15–20 questions, and a cut score commonly around 66%.
Current curriculum weights (memorize these — they drive your study allocation):
| Domain | Weight |
|---|---|
| Troubleshooting | 30% |
| Cluster Architecture, Installation & Configuration | 25% |
| Services & Networking | 20% |
| Workloads & Scheduling | 15% |
| Storage | 10% |
Questions are independently scored: partial completion earns partial credit, and unattempted questions earn nothing — never leave a task blank.
Building Study Momentum
Building Study Momentum
Practice beats reading. The exam allows the Kubernetes documentation, GitHub, and the Kubernetes blog — train by finding answers under time pressure, not memorizing YAML.
Core muscle memory to build:
kubectl explain pod.spec.containers.resources # fastest YAML recall
kubectl diff -f manifest.yaml # preview edits
kubeadm init/join/upgrade # cluster lifecycle
The registration bundle typically includes Killer.sh practice environments — use them as full dress rehearsals with a timer. Supplement with a disposable cluster (kind/minikube) where you break things on purpose: CrashLoopBackOff, broken CoreDNS, expired certs, failed upgrades.
Exam-Day Strategy
Exam-Day Strategy
- Budget time: ~5–6 minutes per question; flag and return rather than sinking twenty minutes
- Read constraints twice: tasks hide requirements ("do not restart the cluster", "do not modify Y") that fail scoring if violated
- Start fast, finish deep: bank quick wins (scale, label, cordon) first, save time for troubleshooting
- Verify everything: run the suggested check (
kubectl get, rollout status) after each fix — unconfirmed fixes are risks - Context awareness: tasks may share a cluster; destructive actions can break later questions — prefer additive changes
- Docs search is a skill: know where upgrade, etcd, and NetworkPolicy examples live in kubernetes.io
Interview angle: without the cert, narrating this workflow — explain, diagnose, apply the minimal fix, verify — is how senior Kubernetes questions are evaluated.
Quiz
1. Which domain carries the highest weight on the CKA?
2. What kind of questions does the CKA contain?
3. Which resource can you consult during the exam?
Flashcards
Question
CKA format
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Answer
Proctored, terminal-based, ~2 hours, ~15–20 tasks, roughly 66% cut, partial credit per task.
Question
Domain weights
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Answer
Troubleshooting 30%, Architecture/Install/Config 25%, Services & Networking 20%, Workloads & Scheduling 15%, Storage 10%.
Question
Allowed exam resources
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Answer
Kubernetes documentation, GitHub, Kubernetes blog — train doc-search speed, not memorization.
Question
kubectl explain
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Answer
Live field-level YAML reference in the exam — faster and more accurate than recalling structure from memory.
Revision Notes
Key Takeaways
- 1. Weight study by curriculum: troubleshooting first, then install/config, networking, workloads, storage
- 2. Practice under time pressure with mock environments and doc-search workflows
- 3. Exam discipline: budget, flag, verify each fix, and never skip a question
Interview Tips
- • Describe your diagnostic workflow the same way you would in a real incident — method matters as much as the cert
- • Use domain weights to explain how you prioritize study — signals structured thinking
Cheat Sheet
CKA: ~2h proctored terminal, ~15–20 tasks, ~66% cut, partial credit. Weights: troubleshoot 30 / install 25 / net 20 / workloads 15 / storage 10. Allowed: k8s docs, GitHub, blog. Budget, flag, verify.
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Before You Start
- No prerequisites listed.