Book Image

The KCNA Book

By : Nigel Poulton
Book Image

The KCNA Book

By: Nigel Poulton

Overview of this book

There is a huge benefit in building small, specialized, single-purpose apps that can self-heal, auto scale, and update regularly without needing downtime. Kubernetes and cloud-native technologies come in handy in building such apps. Possessing the knowledge and skills to leverage Kubernetes can positively enhance possibilities in favor of architects who specialize in cloud-native microservices applications. ‘The KCNA Book’ is designed to help those working in technology with a passion to become certified in the Kubernetes and Cloud-Native Associate Exam. You will learn about containerization, microservices, and cloud-native architecture. You will learn about Kubernetes fundamentals and container orchestration. The book also sheds light on cloud-native application delivery and observability. It focuses on the KCNA exam domains and competencies, which can be applied to the sample test included in the book. Put your knowledge to the test and enhance your skills with the all-encompassing topic coverage. Upon completion, you will begin your journey to get the best roles, projects, and organizations with this exam-oriented book.
Table of Contents (12 chapters)
9
8: Sample test
Appendix B: Sample Test answers

Chapter 4: Kubernetes fundamentals

Question 1, answer D
Kubernetes was released in 2014.
Question 2, answers A, B, D
Kubernetes is a container orchestrator and can add self-healing, autoscaling, and zero-downtime rolling-updates to containerised applications. Image scanning is usually provided by registries or CI/CD pipelines.
Question 3, answers A, B, D
Kubernetes natively orchestrates containers. KubeVirt extends it to be able to orchestrate virtual machines, whereas OpenFaaS and Knative extend it to be able to orchestrate serverless functions.
Question 4, answer B
KubeVirt enables Kubernetes to manage virtual machine workloads inside of pods. Knative and OpenFaaS are for serverless, whereas Cilium is a network plugin.
Question 5, answers A, D
OpenFaaS and Knative extend Kubernetes for serverless function workload orchestration. Cilium is a network plug, and KubeVirt enables virtual machine workloads on Kubernetes.
Question 6, answer B
Linkerd provides service...