CKA 40-Day Study Roadmap

A day-by-day learning plan synthesized from the Tech Tutorials with Piyush CKA Full Course. Designed for the Certified Kubernetes Administrator exam (2025 Edition).

Phase 1: Foundation & Core Concepts (Days 0–10)

Day	Topic	CKA Domain
0	Course Introduction & Exam Overview	Architecture
1	What is Kubernetes & Why K8s?	Architecture
2	Kubernetes Architecture (Control Plane & Worker Nodes)	Architecture
3	Installing Kubernetes with kubeadm	Architecture
4	kubectl Essentials & Cluster Interaction	Architecture
5	Understanding Pods & Container Patterns	Workloads
6	Multi-Container Pods, Init Containers & Sidecars	Workloads
7	Labels, Selectors & Annotations	Workloads
8	Deployments, ReplicaSets & Replication Controllers	Workloads
9	Kubernetes Services (ClusterIP, NodePort, LoadBalancer, ExternalName)	Networking
10	Kubernetes Namespaces (default, kube-system, resource isolation, DNS)	Architecture

Phase 2: Workloads, Networking & Storage (Days 11–25)

Day	Topic	CKA Domain
11	Multi-Container Pods (Sidecar, Init, Adapter, Ambassador)	Workloads
12	DaemonSets, Jobs & CronJobs	Workloads
13	Static Pods, Manual Scheduling, Labels & Selectors	Workloads
14	Taints & Tolerations in Kubernetes	Workloads
15	Node Affinity Explained	Workloads
16	Kubernetes Requests and Limits	Workloads
17	Kubernetes Autoscaling — HPA vs VPA	Workloads
18	Kubernetes Health Probes — Liveness vs Readiness vs Startup	Workloads
19	ConfigMaps & Secrets	Architecture
20	SSL/TLS Fundamentals	Security
21	Manage TLS Certificates in K8s — CSR & kubeadm PKI	Security
22	Authentication & Authorization Basics	Architecture
23	RBAC: Roles, RoleBindings & Hands-On Demo	Architecture
24	RBAC Continued: ClusterRoles & ClusterRoleBindings	Architecture
25	Kubernetes Service Account & RBAC for Workloads	Architecture
26	Kubernetes Network Policies Explained	Networking
27	Setup a Multi Node Kubernetes Cluster Using Kubeadm	Architecture

Phase 3: Storage, Scheduling & Troubleshooting (Days 28–37)

Day	Topic	CKA Domain
28	Docker Storage: Volumes, Bind Mounts & Layered Architecture	Storage
29	Kubernetes Storage: Volumes, PersistentVolumes & PVCs	Storage
30	What Is DNS — External DNS Fundamentals	Networking
31	Understanding CoreDNS In Kubernetes	Networking
32	Kubernetes Networking Explained — CNI With @kubesimplify	Networking
33	Kubernetes Ingress Tutorial — Ingress Explained (with @AbhishekVeeramalla)	Networking
34	Restore	Architecture
35	Troubleshooting: Nodes, Pods & Networking	Troubleshooting
36	Troubleshooting: Control Plane & Storage	Troubleshooting
37	Phase 3 Review & Practice Exam	—

Phase 4: Mock Exams & Final Preparation (Days 38–42)

Day	Focus
38	Mock Exam 1: Full 2-Hour Simulation
39	Mock Exam 2: Speed & Accuracy Drill
40	Weak Area Revision & kubectl Cheatsheet
41	Exam Strategy: Time Management & Documentation Search
42	Final Review & Confidence Building

Daily Study Methodology

1. Watch the daily video (20–40 min)
2. Lab — Replicate every command on a local cluster (kind/minikube)
3. Note — Summarize key commands and YAML patterns in your own words
4. Quiz — Try to solve related tasks without looking at notes
5. Log — Mark progress in the CKA Progress Tracker

Critical Exam Skills to Build

• YAML Speed: Practice writing Deployments, Services, and RBAC manifests from memory
• Service Types: Know the four types (ClusterIP, NodePort, LoadBalancer, ExternalName), their port fields, and when each applies
• kubectl Explain: Use kubectl explain --recursive to discover field structures quickly
• Context Switching: The exam uses multiple clusters; be fluent with kubectl config use-context
• Docs Navigation: Learn to find answers on kubernetes.io/docs in under 30 seconds
• Troubleshooting Chain: Master kubectl get → describe → logs → exec for rapid diagnosis

Sources

• CKA Day 0: Introduction & Roadmap
• CKA Day 9: Kubernetes Services Explained
• CKA Day 16: Kubernetes Requests and Limits
• CKA Day 18: Kubernetes Health Probes Explained — Liveness vs Readiness Probes
• CKA Day 19: Kubernetes ConfigMap and Secret Explained
• CKA Day 18: Kubernetes Health Probes Explained — Liveness vs Readiness Probes
• TLS Works
• CKA Day 21: Manage TLS Certificates In a Kubernetes Cluster — Create Certificate Signing Request
• CKA Day 22: Kubernetes Authentication and Authorization Simply Explained
• CKA Day 23: Kubernetes RBAC Explained — Role Based Access Control
• CKA Day 24: Kubernetes RBAC Continued — ClusterRole and ClusterRoleBinding
• CKA Day 25: Kubernetes Service Account — RBAC Continued
• CKA Day 26: Kubernetes Network Policies Explained
• CKA Day 27: Setup a Multi Node Kubernetes Cluster Using Kubeadm
• CKA Day 28: Docker Volume Explained — Docker Bind Mount & Docker Persistent Storage
• CKA Day 29: Kubernetes Volume Simplified — Persistent Volume, Persistent Volume Claim & Storage Class
• CKA Day 32: Kubernetes Networking Explained | Container Network Interface (CNI)
• CKA Day 33: Kubernetes Ingress Tutorial | Ingress Explained
• CKA Day 34: Step-By-Step Guide To Upgrade a Multi Node Kubernetes Cluster With Kubeadm

Related Pages

• CKA Certification Overview
• Kubernetes Concepts Index
• Kubernetes Authentication & Authorization — Day 22 topic: authn/authz pipeline and kubeconfig
• Kubernetes RBAC — Day 22 continuation: Roles, ClusterRoles, Bindings
• Kubernetes Service Account — Day 25: in-cluster identity and RBAC for workloads
• Kubernetes Network Policies — Day 26: zero-trust east-west traffic segmentation
• Kubeadm Cluster Setup — Day 27: production cluster installation, ports, CNI, certificates
• Docker Storage — Day 28: prerequisite for Kubernetes storage; layered architecture, volumes, bind mounts, and the K8s storage bridge
• Kubernetes Storage — Day 29: PVs, PVCs, StorageClasses, access modes, and reclaim policies
• CoreDNS — Day 31: cluster DNS and service discovery
• Kubernetes CNI — Day 32: Container Network Interface plugins and cluster networking
• Kubernetes Ingress — Day 33: Layer 7 HTTP/HTTPS routing, Ingress Controllers, and TLS termination
• Kubernetes Cluster Upgrade — Day 34: rolling update strategy, kubeadm upgrade commands, and worker-node sequencing
• Node Maintenance: Drain, Cordon, Uncordon — Day 34 prerequisite: node evacuation before upgrades
• Kubernetes Versioning & Version Skew — Day 34 prerequisite: release cadence, support window, and component compatibility
• CKA Progress Tracker

---

Tags: cka kubernetes roadmap learning-plan 40-days devops