1 First steps


This chapter covers

  • Introducing the Certified Kubernetes Administrator Exam
  • Defining a Kubernetes administrator
  • Meeting Kubernetes and the problems it solves
  • Introducing the Kubernetes API
  • Kubernetes components and Services, and Linux backend services
  • Declarative and imperative commands

Welcome to Acing the Certified Kubernetes Administrator Exam. If you’ve purchased this book, chances are you’ve already researched the exam, know what it’s about, and perhaps even have it scheduled. If not, don’t worry; we’ll talk about what the exam is and how to get signed up as soon as possible. For those of you who want to get right down to it, go ahead and skip this section, as it will most likely be review for you. You can skip to section 2, where we get into the meat and potatoes of the exam curriculum.

For those who are still being introduced to the CKA exam, let’s go over what the exam is and what it entails. First, let me start by stating that I’m glad you’ve decided to come along with us on this journey to get certified in Kubernetes. Achieving the Certified Kubernetes Administrator (CKA) certification is quite an accomplishment and will help advance your career in a very big way. Also, you’ll be part of a large group of individuals who hold this certification, including over 32,000 people worldwide. You might be asking yourself if it’s worth it, and to that, I would say yes, and here’s why:

1.1 Introducing the CKA exam

1.2 What’s in store

1.2.1 What is a Kubernetes administrator?

1.3 Meeting Kubernetes

1.3.1 Cluster architecture, installation, and configuration

1.3.2 Workloads and scheduling

1.3.3 Services and networking

1.3.4 Storage

1.3.5 Troubleshooting

1.4 Control plane node

1.5 Worker nodes

1.6 API model and PKI