How I scored 93% in Certified Kubernetes Administrator (CKA) Exam

Introduction

The aim of this article is to give you tips to clear your CKA exam.

It all started when I had to develop a POC on Spark on Kubernetes for a business that is running Cloudera managed Spark workloads.

Creating my Kubernetes Cluster from Scratch and configuring a serviceaccount for Spark to be able to request executors through the kube-apiserver, have stimulated my interest into deep diving into Security, Networking, Cluster management aspects within the world of Kubernetes !

I did my homework and I reviewed the following Security and Networking basics that I believe are essential to succeed in the exam:

Security

• Symmetric / Asymmetric encryption / TLS / CA / private and public keys ..

Networking

• Switching / Routing / DNS / Networking CNIs / Docker Networking

Then I decided to take it.

Why bother getting certified on Kubernetes ?