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Free course

CKA Prep Program

Certified by Devopsify: free Kubernetes administrator training mapped to the official CKA domains, with browser labs and paid certificate at 29 USD.

Intermediate - Linux and containers assumed · 7 modules · 28 lessons · ~5 h reading

Start with lesson 1, free Full syllabus ↓

Module 1

Exam strategy and speed

How the 2-hour performance exam works, the kubectl speed kit, and a free cluster in the browser with zero local installs.

  • Explain the exam format, timing and retake rule
  • Use imperative commands, aliases and dry-run templates at speed
  • Search the official docs during a task
  • Open a free browser cluster on Killercoda or PWK

Hands-on labs (2) · local guide plus browser playground where linked

  1. 1.kubectl Speed: Alias, Vim and Dry-Run10 min
  2. 2.Search the Docs in Under 60 Seconds8 min
  3. 3.The Two-Hour Game Plan and the Retake Rule8 min
  4. 4.Local Clusters: kind, k3d and minikube10 min

Module 2

Cluster architecture, installation and configuration

kubeadm installs, HA control plane, certificates, etcd backup and restore, kubeconfig contexts, RBAC in depth, upgrades.

  • Install a cluster with kubeadm
  • Back up and restore etcd
  • Manage certificates and kubeconfig contexts
  • Write RBAC roles and bindings from scratch
  • Upgrade a kubeadm cluster step by step

Hands-on labs (1) · local guide plus browser playground where linked

  1. 1.Install a Cluster with kubeadm14 min
  2. 2.Back Up and Restore etcd12 min
  3. 3.Certificates, kubeconfig Contexts and RBAC from Scratch15 min
  4. 4.Upgrade a kubeadm Cluster Step by Step12 min

Module 3

Workloads and scheduling

Pod design patterns, deployments, daemonsets, jobs, taints and affinity, resource boundaries, scheduling decisions.

  • Choose the right workload controller
  • Apply multi-container patterns
  • Control placement with taints, tolerations and affinity
  • Set requests and limits with intent
  • Run jobs and cronjobs to completion

Hands-on labs (1) · local guide plus browser playground where linked

  1. 1.Choose the Right Workload Controller11 min
  2. 2.Control Placement with Taints, Tolerations and Affinity13 min
  3. 3.Set Requests and Limits with Intent12 min
  4. 4.Run Jobs and CronJobs to Completion10 min

Module 4

Services and networking

Service types, endpoints, CoreDNS, Ingress with TLS, NetworkPolicy in depth, CNI basics, service discovery.

  • Expose workloads with the right service type
  • Write Ingress rules including TLS
  • Lock traffic down with NetworkPolicies
  • Diagnose DNS and connectivity failures
  • Read endpoints like a map

Hands-on labs (1) · local guide plus browser playground where linked

  1. 1.Expose Workloads with the Right Service Type11 min
  2. 2.Write Ingress Rules Including TLS12 min
  3. 3.Lock Traffic Down with NetworkPolicies13 min
  4. 4.Diagnose DNS and Connectivity Failures12 min

Module 5

Storage

Volumes, PV and PVC binding rules, StorageClass dynamic provisioning, StatefulSets, data protection.

  • Attach the right volume type
  • Bind PVs and PVCs predictably
  • Use StorageClasses for dynamic provisioning
  • Run stateful workloads with StatefulSets
  • Expand and protect data

Hands-on labs (1) · local guide plus browser playground where linked

  1. 1.Attach the Right Volume Type10 min
  2. 2.Bind PVs and PVCs Predictably12 min
  3. 3.Use StorageClasses for Dynamic Provisioning11 min
  4. 4.Run Stateful Workloads with StatefulSets13 min

Module 6

Troubleshooting

The heaviest domain: methodology, application failures, pending pods, network faults, node pressure, control-plane and etcd recovery.

  • Apply observe, narrow, verify under time pressure
  • Read CrashLoopBackOff and ImagePull like a log
  • Diagnose pending pods to the exact cause
  • Recover nodes, control-plane components and etcd
  • Prove root cause with logs, events and metrics

Hands-on labs (1) · local guide plus browser playground where linked

  1. 1.Apply Observe, Narrow, Verify Under Time Pressure11 min
  2. 2.Read CrashLoopBackOff, ImagePull and Pending Like a Log12 min
  3. 3.Recover Nodes, Network Faults and Full Disks13 min
  4. 4.Recover Control-Plane Components and etcd13 min

Module 7

Full mock exams

Three 120-minute mocks weighted like the real blueprint, with questions written from the public domains.

  • Finish a full mock inside 120 minutes
  • Review every miss against its domain
  • Enter exam week with a checklist, not anxiety

Hands-on labs (1) · local guide plus browser playground where linked

  1. 1.Finish a Full Mock Inside 120 Minutes12 min
  2. 2.Review Every Miss Against Its Domain10 min
  3. 3.Enter Exam Week with a Checklist, Not Anxiety9 min
  4. 4.Command Speed Tactics Under Pressure10 min