Thinking of leveling up your Kubernetes game with the CKS (Certified Kubernetes Security Specialist) certification?
You’re on the right path. This cert is not just a badge — it proves you actually know how to secure a Kubernetes cluster in the real world.But let’s be honest... it’s not easy.
So here are practical tips to pass the CKS exam without burning out. 🧠
🧩 1. Know What the Exam Is (and Isn’t)
The CKS is a hands-on, performance-based exam.
It’s not multiple choice — you’ll be working directly in a live Kubernetes environment.You have 2 hours to complete 15–20 practical tasks, like configuring network policies, RBAC rules, Pod security contexts, and more.
✅ You must have CKA before taking CKS!
📚 2. Official Curriculum = Your Bible
Don’t waste time guessing — the CKS curriculum lists exactly what you’ll be tested on.
Break it into sections:
- Cluster Setup (TLS, authentication, authorization)
- System Hardening
- Minimize Microservice Vulnerabilities
- Supply Chain Security
- Monitoring, Logging & Runtime Security
✅ Use the curriculum like a checklist. Tick off each concept once you’ve practiced it.
🧪 3. Practice > Reading
CKS is all about doing, not memorizing.
So fire up a lab and practice every single topic hands-on.
🧰 Tools you’ll need to be comfortable with:
-
kube-bench,kube-hunter -
AppArmor,seccomp,pod security standards -
Falco,Sysdig,auditd - Image signing:
cosign,notary,trivy
🧪 Labs to try:
- Killer.sh (official sim)
- Katacoda
- Play with Kubernetes
- Your own Minikube/kind cluster
📑 4. Use Bookmarks During the Exam
Yes — you can use Kubernetes official docs during the exam!
Just be smart about it:
✅ Bookmark these:
- https://kubernetes.io/docs/
- https://kubernetes.io/docs/concepts/
- https://kubernetes.io/docs/tasks/
- https://kubernetes.io/docs/reference/kubectl/cheatsheet/
❌ No Stack Overflow, blogs, or YouTube — those are blocked.
⌛ 5. Time Management = Life Saver
2 hours might feel long, but you’ll run out of time fast if you’re not careful.
Tips:
- Don’t get stuck on one question — skip and come back later
- Keep an eye on your timer
- Mark difficult questions and revisit with leftover time
📂 6. Know Your YAML and Kubectl
You’ll write a LOT of YAML — quickly.
Be fluent with:
- PodSecurityPolicies (deprecated but still tested)
- RBAC roles, ClusterRoles, RoleBindings
- SecurityContext fields
- NetworkPolicies
And master these commands:
bash
kubectl explain pod.spec.securityContext
kubectl create role --dry-run=client -o yaml
kubectl get events --sort-by='.metadata.creationTimestamp'
Top comments (3)
I recently passed the CKS exam, and I'm very pleased with my score. CertifyCerts assisted me in reviewing important Kubernetes Security, cluster hardening, and container security topics during my preparation. a great resource for anyone looking to improve their cloud security skills and pass the CKS certification exam.
What? PSP's are still on the test? How is possible to create them after ~1.24??
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