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LAB OVERVIEW
Kubernetes Lab

Multi-Node K8s Cluster Lab (CKA/CKS)

Real cluster troubleshooting + security hardening tasks under time pressure.

A multi-node Kubernetes lab built for performance-based practice. You will troubleshoot scheduling, storage, ingress, networking and observability issues, then move into security hardening tasks such as RBAC and NetworkPolicies. Designed to build the ‘diagnose + verify’ muscle needed for CKA and CKS, and for real SRE/DevOps work.

What you get
  • Multi-node cluster practice tasks with success checks
  • Troubleshooting tickets covering workload, networking and storage issues
  • Security hardening tasks: RBAC, NetworkPolicy, least privilege patterns
  • Verification checklist after every fix (prove it’s solved)
  • Reset guidance and speed drills to improve exam performance
Lab scenarios
  • Scheduling failures: taints/tolerations, resources, affinity/anti-affinity
  • Ingress or Service unreachable: endpoints, selectors, ports, DNS checks
  • NetworkPolicy blocks traffic: confirm allowed flows with tests
  • PVC/PV issues: binding, storageClass mismatch, mount errors
  • RBAC denies actions: fix roles/rolebindings safely and minimally
  • Observability drill: choose signals and set actionable alerts
How it works

Build speed with kubectl patterns and targeted filters.

Each ticket has symptoms, constraints and success criteria.

Apply RBAC/NetworkPolicy changes and validate access/flows.

Reset and rerun to improve consistency and confidence.
Access & environment
  • Remote terminal or browser console depending on your setup
  • Repeatable tasks with reset guidance
  • Command templates and checklists for fast verification
  • Ideal companion for CKA/CKS exam bank review
Prerequisites
  • Linux terminal basics
  • Basic Kubernetes concepts helpful
  • Willingness to practice repeatedly for speed
Outcomes
  • Faster, more reliable Kubernetes troubleshooting workflow
  • Improved hands-on exam performance (CKA/CKS style)
  • Security-aware habits for access control and network segmentation
  • Confidence handling real cluster incidents

Need a lab plan for your exam timeline?

Tell us your exam code/name and target date. We’ll recommend a lab sequence + mock exam strategy.

Lab Snapshot

Scheduling, storage, ingress, networking and observability

Security tasks: RBAC, network policies, runtime controls

Time-pressure tickets: diagnose, fix, verify, repeat

Mapped to CKA and CKS skill areas

Reset-and-repeat practice for speed improvements

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