Kubernetes · hands-on lab
Kubernetes Lab 23: Troubleshoot a Multi-Node Cluster
Find and fix a broken worker node, a deployment that cannot be scheduled and a crashing pod, like the CKA cluster troubleshooting tasks.
- 60 minutesTime in the lab
- ExpertLevel
- 5 tasksChecked automatically
- CertificateVerifiable link when you finish
The situation
Monday morning: one worker is NotReady and two apps are down. Fix the cluster without rebuilding it.
What you will do
- Explore: The broken nodequestion
- Task 1: Bring the worker back
- Task 2: Pending pods
- Task 3: Crashing cache
- Node componentsquestion
How it works
The lab opens in your browser: a real terminal or desktop, nothing to install. Work through the tasks, press Check after each one and the portal verifies your work. Stuck? Ask for a hint. Finish every task and you get a certificate page with its own verification link for LinkedIn or your CV.