What is CKA Certification? – Learn Everything About It

CKA Certification

Kubernetes is one of the most popular container-orchestration tools today. With containers getting more important in the cloud-native world, Kubernetes will only increase in popularity. Statista says 61% of organizations that responded to the survey adopted Kubernetes in 2022. With increasing adoption, the demand for Kubernetes experts is also growing.

If you want to make a career in Kubernetes, the Certified Kubernetes Administrator (CKA) certification is a great way of validating your skills in the field. The certification assures employers that you have the skills and knowledge to be a competent Kubernetes administrator.

Read on to learn more.

What is CKA certification?

It is provided by the Cloud Native Computing Foundation (CNCF) and Linux Foundation in collaboration. It tests the candidates’ ability to develop, create, and manage Kubernetes clusters and cloud-native applications. The certification suits Kubernetes administrators, IT professionals, and cloud administrators working with Kubernetes instances.

Some of the skills covered by the certification include the following.

● Basic installation, configuration, and management of production-grade Kubernetes clusters

● Understanding of foundational concepts, including Kubernetes maintenance, networking, security, storage, and troubleshooting

● Developing use cases for end users 

Benefits of CKA certification

These Certifications are highly valued in the IT sector. They will help you stand out while applying for a job and validate your ability as a Kubernetes administrator. Here are some of its benefits.

● Kubernetes holds the second-highest market share in the containerization technologies market. More and more organizations are adopting it, which has increased the demand for Kubernetes professionals.

● It gives you an edge over other candidates while applying for a job.

● You can also use the certification as a factor while negotiating for a better opportunity and salary.

● The certification is incredibly useful for all IT professionals.

● It is globally recognized.

Prerequisites

There are no official prerequisites to give this exam. However, it is recommended to know the following fields before going for it.

● Container runtime: Knowing docker can be incredibly beneficial before attempting the CKA exam.

● YAML/JSON knowledge: To create Kubernetes objects, you need to know YAML or JSON. YAML is preferred over JSON due to its simplicity.

● Vim editor: You’d have to create and modify files during this exam. Experience with the Vim editor is necessary.

● Linux: Since the exam is hands-on, knowing how to use Linux and perform different functions is necessary. You can take beginner’s courses to understand Linux. Also, remember to understand Linux networking as well.

Giving the exam without knowledge or experience in Kubernetes can make it challenging. Therefore, it is better to prepare as much as you can.

Exam details

The Kubernetes certification cost is $395. The certification will be valid for only 3 years. You can take the exam within 12 months of registration. The fees also include one free retake. The exam duration is 2 hours. The exam will be conducted online and will be proctored. You will be required to solve multiple tasks from a command line running Kubernetes to complete the exam.

Study guide

The exam tests your competency in the following domains.

● Storage (10%): Storage class; persistent volume claims primitive; configuring applications

● Troubleshooting (30%): Evaluating cluster and node logging; troubleshooting application failure; troubleshooting network; monitoring applications

● Workloads and Scheduling (15%): Scaling applications; knowledge of common templating tools; using ConfigMaps; understanding deployments

● Cluster Architecture, Installation, and Configuration (25%): Managing role-based access control; managing Kubernetes cluster; using Kubeadm to install a cluster

● Services and Networking (20%): Understanding host networking configuration on the cluster nodes and connectivity between pods; knowledge of ClusterIP and NodePort

Preparing for CKA certification

● To prepare for the exam, you can consider taking online cka certification courses. These courses are thorough and can help you prepare well. You can also take Kubernetes certification training.

● The exam is performance-based. Therefore, you must practice a lot before taking the exam.

● Remember to reuse YAML. That will help you save time.

● Create some aliases to save time during the exam.

● Go through the Kubernetes The Hard Way once. This tutorial will help you get familiar with Kubernetes.

Now you know everything you need to know about CKA certification. A Kubernetes administrator is a lucrative career choice with significant room for growth. 

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