Book Image

Certified Kubernetes Administrator (CKA) Exam Guide

By : Mélony Qin
4 (1)
Book Image

Certified Kubernetes Administrator (CKA) Exam Guide

4 (1)
By: Mélony Qin

Overview of this book

Kubernetes is the most popular container orchestration tool in the industry. The Kubernetes Administrator certification will help you establish your credibility and enable you to efficiently support the business growth of individual organizations with the help of this open source platform. The book begins by introducing you to Kubernetes architecture and the core concepts of Kubernetes. You'll then get to grips with the main Kubernetes API primitives, before diving into cluster installation, configuration, and management. Moving ahead, you’ll explore different approaches while maintaining the Kubernetes cluster, perform upgrades for the Kubernetes cluster, as well as backup and restore etcd. As you advance, you'll deploy and manage workloads on Kubernetes and work with storage for Kubernetes stateful workloads with the help of practical scenarios. You'll also delve into managing the security of Kubernetes applications and understand how different components in Kubernetes communicate with each other and with other applications. The concluding chapters will show you how to troubleshoot cluster- and application-level logging and monitoring, cluster components, and applications in Kubernetes. By the end of this Kubernetes book, you'll be fully prepared to pass the CKA exam and gain practical knowledge that can be applied in your day-to-day work.
Table of Contents (17 chapters)
1
Part 1: Cluster Architecture, Installation, and Configuration
5
Part 2: Managing Kubernetes
10
Part 3: Troubleshooting

Mock CKA scenario-based practice test

You have two virtual machines, master-0 and worker-0. Please complete the following mock scenarios:

Scenario 1

SSH to the master-0 node, check the current kubeadm version, and upgrade to the latest kubeadm version. Check out the current kubectl version, and upgrade to the latest kubectl version.

Scenario 2

SSH to worker-0 node, check out the current kubeadm version, and upgrade to the latest kubeadm version. Check out the current kubelet version, and upgrade to the latest kubelet version.

Scenario 3

SSH to the master-0 node and back up the etcd store.

Scenario 4

SSH to the master-0 node and restore the etcd store to the previous backup.

You can find all the scenario resolutions in Appendix - Mock CKA scenario-based practice test resolutions of this book.