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Kubernetes Certification: Everything You Need to Know

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Kubernetes has become an essential technology for companies looking to build and scale containerized applications. According to a recent report from Fortune Business Insights, the global Kubernetes market is expected to grow from $4.3 billion in 2019 to over $9.4 billion by 2027, at a CAGR of 10.9%.

With demand for Kubernetes skills surging, IT professionals are seeking Kubernetes certifications to demonstrate their expertise and advance their careers. In this comprehensive guide, we‘ll explore everything you need to know about Kubernetes certification, from an overview of popular exams to prep resources and career opportunities.

Kubernetes (also known as K8s) is an open-source container orchestration system initially designed by Google. It was open-sourced in 2014 and is now maintained by the Cloud Native Computing Foundation (CNCF).

In simple terms, Kubernetes makes it easier to deploy, scale, and manage containerized applications. Key features include:

  • Automated container deployment and scaling – Kubernetes allows you to define how many instances of an application should be running at any time. It can automatically spin up or terminate containers based on demand.

  • Service discovery and load balancing – Kubernetes groups containers based on logical relationships and can expose these groups as services. This facilitates service discovery and allows traffic to be distributed evenly.

  • Storage orchestration – Kubernetes allows you to automatically mount storage systems like local storage, public cloud providers, and more.

  • Automated rollouts and rollbacks – You can describe desired application state in Kubernetes, and any changes to that state (like a new image version) can be rolled out predictably. Rollbacks are also automated.

  • Self-healing – Kubernetes restarts containers that fail, replaces containers that don‘t respond to health checks, and kills containers that don‘t conform to your desired state.

  • Secret and configuration management – Kubernetes manages secrets and configuration details for containerized applications separately from container images. This makes it easier to share container images across environments.

These and other features have made Kubernetes a very attractive platform for deploying containerized workloads. According to Red Hat‘s 2021 State of Enterprise Open Source report, 56% of IT leaders say their organizations currently use Kubernetes in production, making it the most popular container orchestration platform.

The ability to run containerized applications consistently across on-premise, hybrid, and multi-cloud environments is a major driver of Kubernetes adoption. By providing a layer of abstraction, Kubernetes enables portability across infrastructure and prevents vendor lock-in.

The bottom line is that Kubernetes has become the de facto standard for container orchestration. IT professionals with Kubernetes skills are in high demand as organizations scale their use of containerized applications.

What Does a Kubernetes Certification Certify?

IT certifications validate that candidates possess the knowledge and skills required for specific job roles. To gain certification, candidates typically must pass one or more exams that test their proficiency in key areas through a combination of multiple choice, hands-on, and performance-based questions.

Kubernetes certifications are no different. They provide third-party validation that certificate holders have mastered critical Kubernetes concepts and competencies.

For example, the Certified Kubernetes Administrator (CKA) exam is a comprehensive test that requires "proficiency in configuration, security, multi-tenancy, cluster lifecycle management, networking, storage, troubleshooting and more." Passing this rigorous certification demonstrates deep operational experience with Kubernetes.

Employers value IT certifications because they reduce the need for prolonged on-the-job training and validation. There‘s also a perception that certified professionals are more motivated to keep their skills current. For individuals, certifications provide a way to stand out from the crowd and advance their careers.

Major Kubernetes Certifications

Many major cloud and technology vendors offer their own Kubernetes training and certification programs. However, the most widely recognized and vendor-neutral Kubernetes credentials come from the Cloud Native Computing Foundation (CNCF), which manages the Kubernetes project.

Here are the CNCF certifications that are either available today or launching soon:

1. Kubernetes and Cloud Native Associate (KCNA)

The entry-level KCNA certification covers foundational knowledge about Kubernetes core concepts, networking, storage, security, and related cloud native technologies like Prometheus, Envoy, and Helm. This allows developers to demonstrate basic proficiency for working in the Kubernetes ecosystem.

Exam details:

  • 60 multiple choice questions
  • 90 minute time limit
  • Online proctored
  • Passing score of 75%+ required

Cost: $250 exam fee

2. Certified Kubernetes Application Developer (CKAD)

The intermediate-level CKAD certification is designed for software developers who want to prove they can design, build, configure, and expose cloud native applications in Kubernetes. The hands-on exam requires completing a series of tasks from the command line.

Exam details:

  • 19 practical problems
  • 2 hour time limit
  • Online proctored
  • 66%+ passing score required

Cost: $375 exam fee

3. Certified Kubernetes Administrator (CKA)

The advanced CKA certification validates an ability to administer Kubernetes clusters and troubleshoot cluster issues. Like the CKAD, it is a hands-on exam that requires solving real-world Kubernetes challenges from a command line.

Exam details:

  • 17 practical problems
  • 2 hour time limit
  • Online proctored
  • 66%+ passing score required

Cost: $375 exam fee

4. Certified Kubernetes Security Specialist (CKS)

The CKS certification focuses specifically on best practices for securing container deployments on Kubernetes. Candidates must already hold the CKA certification.

Exam details:

  • 15 practical problems
  • 2 hour time limit
  • Online proctored
  • 66%+ passing score required

Cost: $375 exam fee

Kubernetes Certification Career Path

Earning an in-demand certification like CKA or CKAD can significantly boost your career opportunities and earning potential. Some key benefits include:

  • Getting hired. Certifications stand out on resumes and are validation that you have the required Kubernetes skills. Many employers list Kubernetes certifications as preferred or required qualifications for IT roles involving container orchestration.

  • Higher salaries. Data from the 2021 Open Source Jobs Report shows certified IT professionals earn 9% more than their non-certified peers. Salaries also tend to correlate with certification difficulty, so advanced certs like CKA are highly rewarded.

  • Career advancement. Existing employees can leverage Kubernetes certs to move into higher level roles. They demonstrate you‘ve enhanced your skills and provide confidence that you can tackle senior responsibilities.

  • Improved job mobility. Certifications are vendor-neutral and allow you to showcase your skills anywhere. This portability is useful when exploring new job opportunities.

Specific job roles commonly pursued by Kubernetes certified professionals include:

  • Kubernetes Engineer/Administrator – Responsible for deploying and managing Kubernetes clusters across on-prem and cloud environments. Advanced certs like CKA are preferred.

  • Kubernetes Platform/Infrastructure Engineer – Focuses on design and operation of Kubernetes infrastructure components like networking, storage, security, and clusters. CKA is a typical requirement.

  • Kubernetes Software Developer/Application Developer – Builds and maintains the microservices, applications, APIs, etc. that run on Kubernetes. CKAD demonstrates relevant skills.

  • DevOps/Site Reliability Engineer – Implements CI/CD pipelines and infrastructure as code for Kubernetes environments. CKA and CKAD are valued.

  • Cloud Engineer – Manages infrastructure and applications in the cloud. Kubernetes expertise is increasingly valued for multi-cloud roles.

  • Solutions Architect – Designs technical solutions and architectures using Kubernetes. Advanced certs indicate deeper knowledge.

Preparing for Kubernetes Certification Exams

Getting Kubernetes certified requires dedication. The exams are challenging and measure skills that typically take months or more to develop through training, self-study, and hands-on practice.

Here are some recommendations for preparing for popular Kubernetes certification exams:

KCNA Exam Prep

The Kubernetes and Cloud Native Associate (KCNA) Certification Exam Prep Course on Udemy provides over 200 high-quality practice questions to get you ready for the real exam. Video explanations are included with each question.

This course is a affordable option for studying core Kubernetes and cloud native concepts assessed on the KCNA exam.

CKA Exam Prep

For hands-on CKA preparation, the comprehensive Certified Kubernetes Administrator (CKA) with Practice Tests on Udemy is a top choice.

The course includes 19 hours of video tutorials and labs that replicate the real-world troubleshooting and cluster management challenges you‘ll face during the CKA exam. There are also practice questions and mock exams for testing your knowledge.

CKS Exam Prep

The Certified Kubernetes Security Specialist course on Udemy offers complete CKS exam preparation through 11 hours of video lessons, hands-on examples, and resources tailored to the CKS syllabus.

With a focus on Kubernetes security best practices, this course helps instill the deep knowledge required to pass the CKS exam.

CKAD Exam Prep

This Certified Kubernetes Application Developer (CKAD) course on Whizlabs delivers over 5 hours of video tutorials covering all major CKAD exam topics and objectives like Kubernetes core concepts, networking, storage, observability, pod design, security, and troubleshooting.

The comprehensive course is designed to provide the hands-on Kubernetes coding skills needed to pass the CKAD exam on your first attempt.

No matter which certification you are targeting, hands-on practice working with Kubernetes is critical. Using minikube or an online Kubernetes playground like Katacoda to work through real deployment scenarios will help prepare you for the hands-on exam questions.

In-Demand Kubernetes Jobs

Let‘s explore some of the most in-demand roles for Kuberentes certified IT pros:

Kubernetes Engineer

Kubernetes Engineers design, deploy, secure, manage, and monitor Kubernetes clusters in development, test, and production environments. Day-to-day responsibilities include:

  • Planning and implementing Kubernetes architectures
  • Automating cluster deployment using tools like Ansible/Terraform
  • Configuring Kubernetes access and security controls
  • Performing system upgrades, maintenance, and troubleshooting
  • Enabling and monitoring resource allocation and utilization
  • Developing custom scripts and integrations as needed

Strong Linux, networking, system admin, and automation skills are required. Certifications like CKA and the Red Hat Certified Specialist in OpenShift Administration demonstrate relevant expertise.

According to PayScale, the average salary for a Kubernetes Engineer in the U.S. is $123,000.

Kubernetes Platform/Infrastructure Engineer

Kubernetes Platform Engineers focus on deploying and managing the infrastructure that Kubernetes runs on. Typical duties include:

  • Selecting Kubernetes infrastructure components like container runtimes, ingress controllers, service meshes, CSI providers, etc.
  • Provisioning and maintaining highly available Kubernetes clusters across on-prem and multi-cloud environments
  • Enhancing platform reliability through monitoring, logging, tracing and more
  • Ensuring scalability by load testing clusters and automating provisioning
  • Contributing to infrastructure as code templates and tooling
  • Collaborating with developers and SREs to meet delivery requirements

CKA certification combined with infrastructure automation skills are highly desired for this role.

Average salary is $136,000 per PayScale data.

Kubernetes DevOps Engineer

DevOps Engineers develop CI/CD pipelines that allow developers to deploy applications and updates reliably and efficiently on Kubernetes. Their responsibilities include:

  • Working with code repositories, build tools, artifact registries and more
  • Creating declarative Kubernetes configurations and infrastructure as code templates
  • Building and integrating automated testing pipelines
  • Implementing log aggregation and metrics collection
  • Providing self-service deployment options to developers
  • Proactively monitoring and fine-tuning pipelines

CKA and CKAD certifications provide relevant expertise for this role, which earns an average of $120,000 according to PayScale.

Kubernetes Security Engineer

Kubernetes Security Engineers apply best practices to safeguard container workloads and infrastructure. Daily work may involve:

  • Defining Kubernetes security architecture and policies
  • Performing risk assessments of container deployments
  • Enabling authentication, authorization, TLS encryption, vulnerability scanning, network segmentation and other security controls
  • Detecting and responding to Kubernetes security events and incidents
  • Conducting penetration tests to identify potential attack vectors
  • Educating developers and IT teams on Kubernetes security

CKS certification demonstrates specialized security skills for this role. Average pay is $121,000.

Key Takeaways

  • Kubernetes adoption is booming as organizations scale containerized applications.

  • Popular Kubernetes certifications like CKA and CKAD validate core competencies for deploying and managing apps on Kubernetes.

  • Certifications open doors to lucrative in-demand roles like Kubernetes Engineer, Platform Engineer, DevOps Engineer, and Security Engineer.

  • Preparing for Kubernetes certification exams requires dedication through hands-on training, labs, and practice tests.

In today‘s container-driven world, Kubernetes skills offer tremendous career potential. Earning a certification like CKA or CKAD can help you fully capitalize by landing a lucrative Kubernetes job or advancement opportunity.

AlexisKestler

Written by Alexis Kestler

A female web designer and programmer - Now is a 36-year IT professional with over 15 years of experience living in NorCal. I enjoy keeping my feet wet in the world of technology through reading, working, and researching topics that pique my interest.