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Linux Foundation CKA: Certified Kubernetes Administrator (CKA) Program Exam

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Introduction

This certification is for Kubernetes administrators, cloud administrators and other IT professionals who manage Kubernetes instances. 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. This learning path is intended specifically for Kubernetes cluster administrators. Anyone interested in learning how to work with Kubernetes will also benefit from this learning path.

Responsibilities of a Kubernetes administrator involve designing and implementing solutions to leverage a Kubernetes cluster, configuring hardware, peripherals, and services, managing settings and storage, deploying cloud-native applications, and monitoring and supporting a Kubernetes environment. You also undertake duties like researching opportunities for automation, troubleshooting issues as reported by users, and mentoring junior team members in best practices. You often collaborate with other members of the IT team using tools like GIT to promote security, efficiency, and scalability of core services and capabilities.

Kubernetes is one of the world's most popular container orchestration tools. Established by the Cloud Native Computing Foundation (CNCF), the Kubernetes Administrator certification is designed to validate your skills for working with Kubernetes. This learning path is designed to help you prepare you for the CKA exam. It includes a combination of courses covering each exam domain, a series of labs to build hands-on Kubernetes experience working directly in a live cloud environment, and exams to test your knowledge along the way.

A Kubernetes Adminstrator requires strong experience with Windows, Linux, or Unix system administration, as well as solid skills with orchestration platforms, such as ECS, Kubernetes, or Mesos. Knowledge of SQL databases and basic coding skills in Java, JavaScript, PHP, or a similar language are all desirable, as is experience with microservices architectures. Many positions require a bachelor’s degree in computer science, networking, or a related field. This exam to become a Certified Kubernetes Administrator (CKA) will enhance your qualifications and expand your income potential.

Introduction to Linux Foundation-CKA: Certified Kubernetes Administrator Exam

The CKA tests your ability to deploy and configure a Kubernetes cluster as well as your understanding of core concepts.

They can do any of the following without assistance:

  • Application lifecycle management
  • Installation, configuration & validatio
  • Core concepts
  • Networking
  • Scheduling
  • Security
  • Cluster maintenance
  • Logging/monitoring
  • Storage
  • Troubleshooting

Certification Path

There are no pre-requisites for Linux Foundation-CKA: Certified Kubernetes Administrator exam and the successful completion will give you the title of Certified Kubernetes Administrator

Understanding of functional and technical aspects of Cluster Architecture, Installation & Configuration

You will create a Kubernetes cluster that adheres to best practices from scratch using the kubeadm cluster bootstrapping utility. You will also perform several cluster management tasks including performing a backup the cluster, restoring the cluster from a backup, and upgrading Kubernetes in this Lab. You will also learn how to perform tests to verify that everything works as you expect. Even if you intend to use fully-managed Kubernetes clusters, this Lab provides you with a deeper understanding of Kubernetes clusters, and helps you decide on the cluster configuration that is best for your requirements.

The following will be discussed in this section:

  • 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

Understanding of functional and technical aspects of Workloads & Scheduling

The following will be discussed in this section:

  • 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
  • Set up a Kubernetes master node
  • Set up a Kubernetes worker node
  • Deploy a stateless application in a Kubernetes cluster
  • Create a Kubernetes service to allow access to the application from outside the cluster
  • Effectively manage Kubernetes clusters from the command-line
  • Describe methods for deploying Kubernetes clusters in the cloud
  • Explain how Kubernetes can deploy stateful applications
  • Determine if it is a good idea to move a stateful application into Kubernetes
  • Use Kubernetes to automatically provision persistent cloud storage volumes
  • Expose Kubernetes applications via cloud load balancers
  • Monitor and manage Kubernetes clusters using the Kubernetes Dashboard

Understanding of functional and technical aspects of Services & Networking

The following will be discussed in this section:

  • 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
  • Install Kubernetes master and worker nodes including TLS bootstrapping
  • Implement backups and restore methodologies
  • Perform Kubernetes cluster upgrades
  • Test Kubernetes clusters
  • Evaluate different Kubernetes cluster configurations
  • Analyze some pro tips on how to effectively use Kubectl. What you learn here will be useful for administering a cluster and using Kubernetes in general.
  • Learn to be able to attract or repel pods from nodes or other pods. You can ensure pods run on nodes where they are intended to run and achieve other objectives such as high-availability by distributing pods across nodes.
  • Learn to think about using Kubernetes for the long term when you need to consider how you’ll manage and update resources.
  • Learn how to control internal and external access to applications running in a Kubernetes cluster.

Understanding of functional and technical aspects of Storage

The following will be discussed in this section:

  • 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
  • Understand Kubernetes' authentication model
  • Create users and groups in Kubernetes and use role-based access control for authorization
  • Configure network policies to control pod communication
  • Use pod and container security contexts to harden your environments
  • Securely store sensitive information using Kubernetes secrets

Understanding of functional and technical aspects of Troubleshooting

Detect, diagnose, and remedy a variety of Kubernetes failures at the network, node, control-plane, and application levels. You will use tools included in Kubernetes, such as kubectl, as well as a variety of Linux operating system tools like systemctl, journalctl, ss, and openssl to build a comprehensive Kubernetes troubleshooting toolkit.

The following will be discussed in this section:

  • Evaluate cluster and node logging
  • Understand how to monitor applications
  • Manage container stdout & stderr logs
  • Troubleshoot application failure
  • Troubleshoot cluster component failure
  • Troubleshoot networking
  • Troubleshoot Kubernetes connection failures
  • Troubleshoot Kubernetes node failures
  • Troubleshoot Kubernetes component failures
  • Troubleshoot Kubernetes application failures

Who should take the Linux Foundation-CKA: Certified Kubernetes Administrator Exam

This certification will allow the candidate to be setup as a succesfull Kubernetes Administrator and will be able to know and work on the following things:

  • Kubernetes and application Lifecycle Management
  • Kubernetes installation, configuration, and validation
  • Kubernetes core operations concepts
  • Kubernetes networking
  • Kubernetes scheduling
  • Kubernetes security
  • Kubernetes cluster maintenance
  • Kubernetes logging and monitoring
  • Kubernetes storage
  • Troubleshooting Kubernetes

How much Linux Foundation-CKA: Certified Kubernetes Administrator Cost and Details

Examination Name: Linux Foundation-CKA: Certified Kubernetes Administrator Passing Score: 66% or higher Length of Exam: 120 min Types of questions: Multiple Choice Questions No. of Questions: 24 Questions Examination Fees: $300 USD Retake Exam: Free

How to book the Linux Foundation-CKA: Certified Kubernetes Administrator Exam

To register for the CKA exam, go to CNCF Website.

Average Salary of Linux Foundation-CKA: Certified Kubernetes Administrator Exam Certified Professionals

The average salary of a AI-900: Microsoft Azure AI Fundamentals Exam Outlook and Modules Exam Certified Expert in:

  • United State - 145,112 USD
  • India - 11,74,223 INR
  • Europe - 105,1100 EURO
  • England - 84,784 POUND

The benefit of obtaining the Linux Foundation-CKA: Certified Kubernetes Administrator Exam Certification

A Kubernetes certification makes your resume look good and stand out from the competition. As companies rely more and more on k8s, your expertise will be an immediate asset. A top certification like the CKA or the CKAD gives you mighty potential for a better salary. Passing these exams is not an easy task, so companies seeking k8s engineers are willing to pay more because the certifications show that you’re not only experienced, but you truly understand the platform. Achieve personal growth. Passing these exams is rewarding on a personal level: you sacrificed free time and fun to study and prepare, so passing the exam is rewarding in itself. Next, you may even move onto another skillset to focus on.

Difficulty in Attempting Linux Foundation-CKA: Certified Kubernetes Administrator Exam

CKA is a tough exam. Mainly because it focuses on your ability to perform on a practical level rather than just asking a bunch of MCQ questions that would test your knowledge. If the user has successfully passed the Linux Foundation-CKA: Certified Kubernetes Administrator practice exam and has been through Linux Foundation-CKA: Certified Kubernetes Administrator dumps then the certification exam will not be too much difficult as the user has shown aptitude for understanding complicated processes.

Linux Foundation-CKA: Certified Kubernetes Administrator Exam Experience

  • Linux Foundation-CKA: Certified Kubernetes Administrator practice test is a very refined and detailed test. This dump has all the minute details about Kubernetes if you are learning from scratch about the orchestrator.
  • Linux Foundation-CKA: Certified Kubernetes Administrator dumps has a lot of mock exams which will help you and give you a very clear understanding of Kubernetes. We recommend 2–3 practice attempts of each mock exam.
  • You must have good hands-on on Linux command line environment,since you will be dealing with files to edit, delete, save and so on.
  • Kubernetes documentation is extremely vast. It is very important to traverse through the documentation couple of times to get hold of it as you have access to Kubernetes documentation during the exam.

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