Major domains of Kubernetes Administration for CKA exam

1. Scheduling

2. Logging/Monitoring

3. Application Lifecycle Management

4. Cluster Maintenance

5. Security

6. Storage

7. Troubleshooting

8. Core Concepts

9. Networking

10. Installation, Configuration & Validation

    
    

Installation, Configuration & Validation

• Design a Kubernetes cluster

• Install Kubernetes masters and nodes

• Configure secure cluster communications

• Configure a Highly-Available Kubernetes cluster

• Know where to get the Kubernetes release binaries

• Provision underlying infrastructure to deploy a Kubernetes cluster

• Choose a network solution

• Choose your Kubernetes infrastructure configuration

• Run end-to-end tests on your cluster

• Analyze end-to-end test results

• Run Node end-to-end tests

• Install and use kubeadm to install, configure, and manage Kubernetes clusters

Core Concepts

• Understand the Kubernetes API primitives

• Understand the Kubernetes cluster architecture

• Understand Services and other network primitives

Application Lifecycle Management

• Understand Deployments and how to perform rolling updates and rollbacks

• Know various ways to configure applications

• Know how to scale applications

• Understand the primitives necessary to create a self-healing application

Cluster Maintenance

• Understand the Kubernetes cluster upgrade process

• Facilitate operating system upgrades

• Implement backup and restore methodologies

Networking

• Understand the networking configuration on the cluster nodes

• Understand Pod networking concepts

• Understand service networking

• Deploy and configure the network load balancer

• Know how to use Ingress rules

• Know how to configure and use the cluster DNS

• Understand CNI

Security

• Know how to configure authentication and authorization

• Understand Kubernetes security primitives

• Know to configure network policies

• Create and manage TLS certificates for cluster components

• Work with images securely

• Define security contexts

• Secure persistent key-value store

Storage

• Understand persistent volumes and know how to create them

• Understand access modes for volumes

• Understand persistent volume claims primitive

• Understand Kubernetes storage objects

• Know how to configure applications with persistent storage

Scheduling

• Use label selectors to schedule Pods

• Understand the role of DaemonSets

• Understand how resource limits can affect Pod scheduling

• Understand how to run multiple schedulers and how to configure Pods to use them

• Manually schedule a pod without a scheduler

• Display scheduler events

• Know how to configure the Kubernetes scheduler

Logging/Monitoring

• Understand how to monitor all cluster components

• Understand how to monitor applications

• Manage cluster component logs

• Manage application logs

Troubleshooting

• Troubleshoot application failure

• Troubleshoot control plane failure

• Troubleshoot worker node failure

• Troubleshoot networking