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For more info read reference:

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The benefit of obtaining the Docker Certified Associate Exam Certification

  • DCA credential delivers higher earning potential and increased promotion opportunities because it shows a good understanding of Docker containerization technology.

  • DCA Exam provide proven knowledge to use the tools to complete the task efficiently and cost-effectively than the other non-certified professionals lack in doing so.

  • This certification will be judging your skills and knowledge on your understanding of Docker containerization technology concepts & Understanding of how to operate on Docker.

  • This accreditation is a portable proof of skills in containerization technology.

  • DCA Certifications provide opportunities to get a job easily in which they are interested in instead of wasting years and ending without getting any experience.

Reference: https://dockerlabs.collabnix.com/docker/dca.html

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Docker DCA Exam Syllabus Topics:

SectionWeightObjectives
Installation and Configuration15%- Describe namespaces, cgroups, and configuration of certificates
- Create and manager user and teams
- Configure logging drivers (splunk, journald, etc.)
- Use the install command to install DTR (Docker Trusted Registry)
- Describe the use of UCP (Universal Control Plane)
- Complete setup of repo, select a storage driver, and complete installation of Docker engine on multiple platforms
- Describe the interaction between Docker and Linux
- Demonstrate the ability to upgrade the Docker engine
- Interpret errors to troubleshoot installation issues without assistance
- Setup swarm, configure managers, add nodes, and setup the backup schedule
- Outline the sizing requirements prior to installation
Image Creation, Management, and Registry20%- Utilize a registry to store an image
- Describe options, such as add, copy, volumes, expose, entry point
- Inspect images and report specific attributes using filter and format
- Give examples on how to create an efficient image via a Dockerfile
- Describe the use of Dockerfile
- Describe how image layers work
- Apply a file to create a new image
- Identify and display the main parts of a Dockerfile
- Describe how to set up and use a local registry
- Demonstrate tagging an image
- Display layers of a Docker image
- Describe how an image registry works
- Use CLI commands such as list, delete, prune, rmi, etc. to manage images
Security15%- Enable Docker Content Trust
- Describe the difference between UCP and DTR
- Describe identity roles
- Compare the UCP workers and managers
- Describe the process to sign a Docker image
- Describe MTLS
- Describe UCP and DTR integration with LDAP/AD
- Describe default engine security
- Describe the security architecture and responsibilities of the Docker EE platform
- Describe swarm default security
- Describe MTLS and identity roles
- Configure RBAC with UCP
Orchestration25%- Describe the difference between global and replicated services
- Describe and demonstrate how to use replication mode
- Interpret the output of "docker inspect" commands
- State the differences between running a container vs running a service
- Demonstrate steps to lock a swarm cluster
- Convert an application deployment into a stack file using a YAML compose file with "docker stack deploy"
- Describe how to deploy containerized workloads as Kubernetes pods and deployments
- Complete the setup of a swarm mode cluster
- Increase number of replicas
- Describe how to provide configuration to Kubernetes pods using configMaps and secrets
- Manipulate a running stack of services
- Identify the steps needed to troubleshoot a service not deploying
- Extend the instructions to run individual containers into running services under swarm
- Describe how a Dockerized application communicates with legacy systems
- Add networks, publish ports
- Mount volumes
Networking15%- Configure Docker to use external DNS
- Create a Docker bridge network for a developer to use for their containers
- Describe the differences between "host" and "ingress" port publishing mode
- Publish a port so that an application is accessible externally
- Troubleshoot container and engine logs to understand a connectivity issue between containers
- Identify which IP and port a container is externally accessible on
- Describe the different types and use cases for the built-in network drivers
- Describe how to install a remote driver to a specific infrastructure provider
- Understand the Container Network Model and how it interfaces with the Docker engine and network and IPAM drivers
Storage and Volumes10%- Describe the storage models available for DTR (NFS, local)
- Describe how volumes work with containers
- Identify the steps to take to clean up unused images on a filesystem and DTR
- Describe the use of tmpfs for ephemeral storage
- Describe the different graph driver storage backends
- Describe how to use a volume plugin (local vs. NFS)

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