Certified Kubernetes Administrator (CKA)

The Certified Kubernetes Administrator (CKA) program provides assurance that CKAs have the skills, knowledge, and competency to perform the responsibilities of Kubernetes administrators.

Who Is It For

This certification is for Kubernetes administrators, cloud administrators and other IT professionals who manage Kubernetes instances.
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About This Certification

CKA was created by The Linux Foundation and the Cloud Native Computing Foundation (CNCF) as a part of their ongoing effort to help develop the Kubernetes ecosystem. The exam is an online, proctored, performance-based test that requires solving multiple tasks from a command line running Kubernetes.
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What It Demonstrates

A certified K8s administrator has demonstrated the ability to do basic installation as well as configuring and managing production-grade Kubernetes clusters. They will have an understanding of key concepts such as Kubernetes networking, storage, security, maintenance, logging and monitoring, application lifecycle, troubleshooting, API object primitives and the ability to establish basic use-cases for end users.
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Domains & Competencies
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Understand storage classes, persistent volumes
Understand volume mode, access modes and reclaim policies for volumes
Understand persistent volume claims primitive
Know how to configure applications with persistent storage
Evaluate cluster and node logging
Understand how to monitor applications
Manage container stdout & stderr logs
Troubleshoot application failure
Troubleshoot cluster component failure
Troubleshoot networking
Workloads & Scheduling15%
Understand deployments and how to perform rolling update and rollbacks
Use ConfigMaps and Secrets to configure applications
Know how to scale applications
Understand the primitives used to create robust, self-healing, application deployments
Understand how resource limits can affect Pod scheduling
Awareness of manifest management and common templating tools
Cluster Architecture, Installation & Configuration25%
Manage role based access control (RBAC)
Use Kubeadm to install a basic cluster
Manage a highly-available Kubernetes cluster
Provision underlying infrastructure to deploy a Kubernetes cluster
Perform a version upgrade on a Kubernetes cluster using Kubeadm
Implement etcd backup and restore
Services & Networking20%
Understand host networking configuration on the cluster nodes
Understand connectivity between Pods
Understand ClusterIP, NodePort, LoadBalancer service types and endpoints
Know how to use Ingress controllers and Ingress resources
Know how to configure and use CoreDNS
Choose an appropriate container network interface plugin

Exam Details & Resources
This exam is an online, proctored, performance-based test that requires solving multiple tasks from a command line running Kubernetes.

Candidates have 2 hours to complete the tasks.

Candidates who register for the Certified Kubernetes Administrator (CKA) exam will have 2 attempts (per exam registration) to an exam simulator, provided by Killer.sh.  

The exam is based on Kubernetes v1.23
The CKA exam environment will be aligned with the most recent K8s minor version within approximately 4 to 8 weeks of the K8s release date

There are no pre-requisites for this exam.
Learning Path
Apr 2022
I liked the fact that all important commands to be entered before starting a question are highlighted appropriately. Additionally, there was a copy button for each highlighted word/command to easily copy into terminal, this makes the life of examinees very easy. Thank you!
Feb 2022
Not sure if this is exam-specific, BUT the process of preparing for this exam has made me a thousand times more confident in my usage of Kubernetes, and that's SO great. The exam itself was really well laid out, and covered a broad range of the topics, and the exam application was really great to use.
Nov 2021
I liked the politeness of the proctor. Smooth and intuitive exam interface. Flagging questions for revisiting, which reminds for revisit of the undone/partially done questions. Overall great experience.
Nov 2021
I just finished up my first test CKA exam from Killer.sh and found it to be incredibly helpful! By far the best simulation and prep I've received thus far!
Jun 2021
I really liked the fact that I could access the documentation!
May 2021
It's hands-on, and not multiple-choice like a lot of other certifications. Instead of testing whether you can remember a lot of detail, it actually tests your understanding, and whether you can do things. If you forget some of the details, you can look it up in the documentation.
Mar 2021
Considering the number of command-line options and manifest attributes, it's really nice that you can look things up in the on-line documentation. That's what you would do at work as well, so this is only realistic. Even though I'm perfectly fine with, and prefer an English exam, I like that it's available in Japanese as well. Makes it a *lot* easier to recommend it to my colleagues.
Feb 2021
I liked it being a practical, real-life exam, rather than being a multiple choice exam. I think this way you get a better knowledge of the topic, and it stays with you longer.
Jan 2021
Has one of the most unique exams I have seen, they test the real skills.
Jan 2021
It was extremely easy to navigate and complete the tasks (assuming I had known what I was doing), so that along with being able to complete the exam from my home, made it a very desirable option. I will dig deep into the technical bowels of Kubernetes now, and I look forward to a much more amiable outcome for myself then!
Jan 2021
This hands on type of test is incredible. I liked being able to use kubenetes.io docs.
Jan 2021
Questions explained in simple English, the UI and exam tools were very nice.
Jan 2021
Exam content is very targeted for our practical application in actual production. Exam content covered most knowledge points that we would use.