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Certified Kubernetes Administrator (CKA) 2020:
Upcoming Program Changes

CKA 2020: Available September 01, 2020 00:00 UTC

Duration of Exam: 2 hours
Software Version: Kubernetes v1.19

A certified K8s administrator can work proficiently to design, install, configure, and manage a Kubernetes production-grade cluster.  They will have an understanding of key concepts such as Kubernetes networking, storage, security, maintenance, logging and monitoring, application lifecycle, troubleshooting, API object primitives and the ability to establish basic use-cases for end users.

CKA 2020 Domain & Competencies are outlined below

Cluster Architecture, Installation & Configuration – 25%

  • Manage role based access control (RBAC)
  • Use Kubeadm to install a basic cluster
  • Manage a highly-available Kubernetes cluster
  • Provision underlying infrastructure to deploy a Kubernetes cluster
  • Perform a version upgrade on a Kubernetes cluster using Kubeadm
  • Implement etcd backup and restore

Workloads & Scheduling – 15%

  • Understand deployments and how to perform rolling update and rollbacks
  • Use ConfigMaps and Secrets to configure applications
  • Know how to scale applications
  • Understand the primitives used to create robust, self-healing, application deployments
  • Understand how resource limits can affect Pod scheduling
  • Awareness of manifest management and common templating tools

Services & Networking – 20% 

  • Understand host networking configuration on the cluster nodes
  • Understand connectivity between Pods
  • Understand ClusterIP, NodePort, LoadBalancer service types and endpoints
  • Know how to use Ingress controllers and Ingress resources
  • Know how to configure and use CoreDNS
  • Choose an appropriate container network interface plugin

Storage – 10%

  • Understand storage classes, persistent volumes
  • Understand volume mode, access modes and reclaim policies for volumes
  • Understand persistent volume claims primitive
  • Know how to configure applications with persistent storage

Troubleshooting – 30%

  • Evaluate cluster and node logging
  • Understand how to monitor applications
  • Manage container stdout & stderr logs
  • Troubleshoot application failure
  • Troubleshoot cluster component failure
  • Troubleshoot networking

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