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Docker and Kubernetes continues to grow & large enterprises are starting to build container strategies for both development and operations. Docker and Kubernetes are a natural fit for furthering DevOps automation. Docker is lightweight, portable and hardware-agnostic. Docker’s packaging enables a developer to write an application in any language and then easily move it. Kubernetes is purpose-built with a simplicity of design that has made it the container orchestration tool of choice.

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Docker Certified Associate (DCA) + Certified Kubernetes Administrator (CKA)

Docker Certified Associate (DCA) :

This examination is based upon the most critical job activities a Docker Certified Associate performs. The skills and knowledge certified by this examination represent a level of expertise where a certified Docker Associate can:
• Run containerized applications from pre-existing images stored in a centralized registry
• Deploy images across the cluster
• Install, maintain, and operate the Docker platform
• Triage issue reports from stakeholders and resolve
• Standup new Docker environments and perform general maintenance and configuration
• Migrate traditional applications to containers
• Configure and troubleshoot Docker engine


The knowledge and skills required at this level should include all of the following objective components :
• 6-months experience with Docker
• Exposure to Docker Enterprise Edition
• Experience with container security
• Experience with at least 1 cloud provider
• Understanding of Docker Best Practices
• Experience with configuration management tools
• Experience with Linux and/or Windows Server


These training courses or equivalency will assist in exam preparation :
• Docker Fundamentals
• Docker for Enterprise Developers
• Docker Security Course

The skills and knowledge measured by this examination are derived from an understanding of the jobs of current Docker users. A team of highly qualified Docker experts defined the test content and wrote the test items.

Note :​ This​ ​examination​ ​blueprint​ ​includes​ ​weighting,​ ​test​ ​objectives,​ ​and​ ​example​ ​content. Example​ ​topics​ ​and​ ​concepts​ ​are​ ​included​ ​to​ ​clarify​ ​the​ ​test​ ​objectives;​ ​they​ ​should​ ​not​ ​be construed​ ​as​ ​a​ ​comprehensive​ ​listing​ ​of​ ​all​ ​the​ ​content​ ​of​ ​this​ ​examination.

The following table lists the domains measured by this examination and the extent to which they are represented.

  Name​ ​of​ ​Domain %​ ​of​ ​Exam
  Orchestration 25%
  Image Creation, Management, and Registry 20%
  Installation and Configuration 15%
  Networking 15%
  Security 15%
  Storage and Volumes 10%


Response​ ​Limits
The examinee selects, from four (4) or more response options, the option(s) that best completes the statement or answers the question. Distracters or wrong answers are response options that examinees with incomplete knowledge or skill would likely choose, but they are generally plausible responses fitting into the content area defined by the test objective.


Test item formats used in this examination are as follows :
Multiple-choice :​ The examinee selects one option that best answers the question or completes a statement. The option can be embedded in a graphic where the examinee “points and clicks” on a selection choice to complete the test item.
Multiple-response :​ The examinee selects more than one option that best answers the question or completes a statement.
Sample​ ​Directions :​ Read the statement or question, and, from the response options, select only the option(s) that represent the most correct or best answer(s) given the information.



Domain​ ​1 :​ ​Orchestration​ ​(25%​ ​of​ ​exam)

Content may include the following :
● Complete the setup of a swarm mode cluster, with managers and worker nodes
● State the differences between running a container vs running a service
● Demonstrate steps to lock a swarm cluster
● Extend the instructions to run individual containers into running services under swarm
● Interpret the output of “docker inspect” commands
● Convert an application deployment into a stack file using a YAML compose file with
“docker stack deploy”
● Manipulate a running stack of services
● Increase # of replicas
● Add networks, publish ports
● Mount volumes
● Illustrate running a replicated vs global service
● Identify the steps needed to troubleshoot a service not deploying
● Apply node labels to demonstrate placement of tasks
● Sketch how a Dockerized application communicates with legacy systems
● Paraphrase the importance of quorum in a swarm cluster
● Demonstrate the usage of templates with “docker service create”


Domain​ ​2 :​ ​Image​ ​Creation,​ ​Management,​ ​and​ ​Registry​ ​(20%​ ​of​ ​exam)
Content may include the following:
● Describe Docker file options [add, copy, volumes, expose, entry point, etc.)
● Show the main parts of a Docker file
● Give examples on how to create an efficient image via a Docker file
● Use CLI commands such as list, delete, prune, rmi, etc. to manage images
● Inspect images and report specific attributes using filter and format
● Demonstrate tagging an image
● Utilize a registry to store an image
● Display layers of a Docker image
● Apply a file to create a Docker image

● Modify an image to a single layer
● Describe how image layers work
● Deploy a registry (not architect)
● Configure a registry
● Log into a registry
● Utilize search in a registry
● Tag an image
● Push an image to a registry
● Sign an image in a registry
● Pull an image from a registry
● Describe how image deletion works
● Delete an image from a registry


Domain​ ​3 :​ ​Installation​ ​and​ ​Configuration​ ​(15%​ ​of​ ​exam)
Content may include the following:
● Demonstrate the ability to upgrade the Docker engine
● Complete setup of repo, select a storage driver, and complete installation of Docker
engine on multiple platforms
● Configure logging drivers (splunk, journald, etc)
● Setup swarm, configure managers, add nodes, and setup backup schedule
● Create and manager user and teams
● Interpret errors to troubleshoot installation issues without assistance
● Outline the sizing requirements prior to installation
● Understand namespaces, cgroups, and configuration of certificates
● Use certificate-based client-server authentication to ensure a Docker daemon has the
rights to access images on a registry
● Consistently repeat steps to deploy Docker engine, UCP, and DTR on AWS and on
premises in an HA config
● Complete configuration of backups for UCP and DTR
● Configure the Docker daemon to start on boot


Domain​ ​4 :​ ​Networking​ ​(15%​ ​of​ ​exam)
Content may include the following:
● Create a Docker bridge network for a developer to use for their containers
● Troubleshoot container and engine logs to understand a connectivity issue between
● Publish a port so that an application is accessible externally
● Identify which IP and port a container is externally accessible on
● Describe the different types and use cases for the built-in network drivers
● Understand the Container Network Model and how it interfaces with the Docker engine
and network and IPAM drivers
● Configure Docker to use external DNS
● Use Docker to load balance HTTP/HTTPs traffic to an application (Configure L7 load
balancing with Docker EE)
● Understand and describe the types of traffic that flow between the Docker engine,
registry, and UCP controllers
● Deploy a service on a Docker overlay network
● Describe the difference between “host” and “ingress” port publishing mode


Domain​ ​5 :​ ​Security​ ​(15%​ ​of​ ​exam)
Content may include the following:
● Describe the process of signing an image
● Demonstrate that an image passes a security scan
● Enable Docker Content Trust
● Configure RBAC in UCP
● Integrate UCP with LDAP/AD
● Demonstrate creation of UCP client bundles
● Describe default engine security
● Describe swarm default security
● Describe MTLS
● Identity roles
● Describe the difference between UCP workers and managers
● Describe process to use external certificates with UCP and DTR


Domain​ ​6 :​ ​Storage​ ​and​ ​Volumes​ ​(10%​ ​of​ ​exam)
Content may include the following :
● State which graph driver should be used on which OS
● Demonstrate how to configure devicemapper
● Compare object storage to block storage, and explain which one is preferable when available
● Summarize how an application is composed of layers and where those layers reside on
the filesystem
● Describe how volumes are used with Docker for persistent storage
● Identify the steps you would take to clean up unused images on a filesystem, also on
● Demonstrate how storage can be used across cluster nodes


Certified Kubernetes Administrator (CKA) Exam Curriculum 1.13.0

This document provides the curriculum outline of the Knowledge, Skills and Abilities
that a Certified Kubernetes Administrator(CKA) can be expected to demonstrate.



• Use label selectors to schedule Pods.
• Understand the role of Daemon Sets.
• Understand how resource limits can affect Pod scheduling.
• Understand how to run multiple schedulers and how to configure Pods to use them.
• Manually schedule a pod without a scheduler.
• Display scheduler events.
• Know how to configure the Kubernetes scheduler.


• Understand how to monitor all cluster components.
• Understand how to monitor applications.
• Manage cluster component logs.
• Manage application logs.

Application Lifecycle Management

• Understand Deployment sand how to perform rolling updates and rollbacks.
• Know various ways to configure applications.
• Know how to scale applications.
• Understand the primitives necessary to create a self-healing application.


• Understand Kubernetes cluster upgrade process.
• Facilitate operating system upgrades.
• Implement backup and restore methodologies.

• Know how to configure authentication and authorization.
• Understand Kubernetes security primitives.
• Know to configure network policies.
• Create and manage TLS certificates for cluster components.
• Work with images securely.
• Define security contexts.
• Secure persistent keyvalue store.


• Understand persistent volumes and know how to create them.
• Understand access modes for volumes.
• Understand persistent volume claims primitive.
• Understand Kubernetes storage objects.
• Know how to configure applications with persistent storage.


• Trouble shoot application failure.
• Trouble shoot control plane failure.
• Trouble shoot worker node failure.
• Trouble shoot networking.

Core Concepts

• Understand the Kubernetes API primitives.
• Understand the Kubernetes cluster architecture.
• Understand Services and other network primitives.


• Understand the networking configuration on the cluster nodes.
• Understand Pod networking concepts.
• Understand Service networking.
• Deploy and configure network loadbalancer.
• Know how to use Ingress rules.
• Know how to configure and use the cluster DNS.
• Understand CNI.

Installation, Configuration & Validation

• Design a Kubernetes cluster.
• Install Kubernetes masters and nodes.
•Configure secure cluster communications.
• Configure a Highly-Available Kubernetes cluster.
• Know where to get the Kubernetes release binaries.
• Provision underlying infrastructure to deploy a Kubernetes cluster.
• Choose a network solution.
• Choose your Kubernetes infrastructure configuration.
• Run end-to-end tests on your cluster.
• Analyse end-to-end tests results.
• Run Node end-to-end tests.

Red Hat Certificate of Expertise in PaaS exam (EX280)

Candidates for the Red Hat Certificate of Expertise in Platform-as-a-Service (PaaS) should be able to perform these tasks:

Install and configure OpenShift Enterprise by Red Hat master and node hosts.
Configure OpenShift Enterprise so that applications can be securely accessed by external clients.
Configure OpenShift Enterprise node properties.
Create a simple OpenShift Enterprise project.
Configure resource limits for projects.
Configure persistent storage for registry use.
Deploy an application from a Git repository.
Edit and import application templates.
Assemble an application from existing components.

Radical Technologies deliver Redhat Linux training with 15+ Year Experienced Real Time Trainer . Trainer explains and do real time practicals on responsibilities you will face in the real time industry , which make you to compete in the Job market and get gob immediately after the course. Covers Topics other than from Books which is required for the IT Industry.Trainer will prepare you extensively to pass Red Hat Certificate of Expertise in PaaS exam (EX280)

  • 100% Passing Records of  Red Hat Certificate of Expertise in PaaS exam (EX280)
  • Appear for Red Hat Certificate of Expertise in PaaS exam (EX280)  Any Time . No Waiting Time to Schedule
  • Training By 14+ Years experienced Real Time Trainer
  • 60+ Practical Sessions for (DO180) and (DO280)
  • Scenarios and Assignments to make sure you compete with current Industry standards
  • World class training methods
  • Training  until the candidate get placed
  • Certification and Placement Support
  • All training in reasonable cost
  • 10000+ Satisfied candidates
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  • Complete End-to-End Project with Each Course
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  •  Covers Topics other than from Books which is required for the IT Industry
  • Resume And Interview preparation with 100% Hands-on Practical sessions
  • Doubt clearing sessions any time after the course
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This course prepares you for these credentials

Red Hat Certified Architect — RHCA®
RHCA certification represents a depth of knowledge in Red Hat Enterprise Linux and breadth of knowledge across other Red Hat technologies.
Certificates of Expertise
Certificates of Expertise are incremental credentials attached to an RHCE certification that demonstrate skills and knowledge in specialised areas.

Red Hat Certified Architect (RHCA)

A Red Hat® Certified Architect (RHCA) is a Red Hat Certified Engineer (RHCE®) or Red Hat Certified JBoss Developer who attained Red Hat’s highest level of certification by passing and keeping current five additional hands-on exams on Red Hat technologies from the respective lists below. If you pass more than five, then you achieve a higher level of RHCA. For example, if you passed six exams beyond RHCE or RHCJD you would be an RHCA Level II. This status would be reflected on the verification page.

In order to retain RHCA status, you must keep at least five credentials beyond either RHCE or RHCJD current from the respective lists on the SKILLS tab below. These need not be the same credentials you used when you first earned RHCA.

Joining the RHCA ranks requires significant time and effort. If you are interested in pursuing RHCA, we recommend the Red Hat Learning Subscription as your most cost-effective and flexible option. Best of all, once you achieve RHCA you are eligible for a 50 percent discount on Red Hat Learning Subscription to help you keep your credentials current or pursue new ones. If you are not an RHCA , there are great discounts happening if you take the subscription through Radical

You could Choose any of the below RHCA track as per your technology interest .

RHCA: Cloud
RHCA: Datacenter
RHCA: Application platform
RHCA: Application development
RHCA: DevOps

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