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Docker Certified Associate Certification Path
Docker Certified Associate Exam is associate level Certification. It is strongly recommended that aspirants for this exam should have a foundational level of knowledge about Docker containerization technology.
Reference: https://dockerlabs.collabnix.com/docker/dca.html
For more info read reference:
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Docker DCA Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Image Creation, Management, and Registry | 20% | - Describe how an image registry works - Describe the use of Dockerfile - Give examples on how to create an efficient image via a Dockerfile - Utilize a registry to store an image - Use CLI commands such as list, delete, prune, rmi, etc. to manage images - Identify and display the main parts of a Dockerfile - Demonstrate tagging an image - Apply a file to create a new image - Describe options, such as add, copy, volumes, expose, entry point - Describe how to set up and use a local registry - Inspect images and report specific attributes using filter and format - Display layers of a Docker image - Describe how image layers work |
| Topic 2: Installation and Configuration | 15% | - Configure logging drivers (splunk, journald, etc.) - Describe the use of UCP (Universal Control Plane) - Setup swarm, configure managers, add nodes, and setup the backup schedule - Create and manager user and teams - Complete setup of repo, select a storage driver, and complete installation of Docker engine on multiple platforms - Outline the sizing requirements prior to installation - Describe the interaction between Docker and Linux - Use the install command to install DTR (Docker Trusted Registry) - Demonstrate the ability to upgrade the Docker engine - Interpret errors to troubleshoot installation issues without assistance - Describe namespaces, cgroups, and configuration of certificates |
| Topic 3: Security | 15% | - Describe the difference between UCP and DTR - Describe UCP and DTR integration with LDAP/AD - Describe identity roles - Describe default engine security - Describe MTLS - Describe swarm default security - Describe the process to sign a Docker image - Describe the security architecture and responsibilities of the Docker EE platform - Describe MTLS and identity roles - Configure RBAC with UCP - Enable Docker Content Trust - Compare the UCP workers and managers |
| Topic 4: Storage and Volumes | 10% | - Describe the use of tmpfs for ephemeral storage - Describe how volumes work with containers - Describe the storage models available for DTR (NFS, local) - Identify the steps to take to clean up unused images on a filesystem and DTR - Describe the different graph driver storage backends - Describe how to use a volume plugin (local vs. NFS) |
| Topic 5: Orchestration | 25% | - Complete the setup of a swarm mode cluster - Mount volumes - Add networks, publish ports - State the differences between running a container vs running a service - Demonstrate steps to lock a swarm cluster - Describe and demonstrate how to use replication mode - Increase number of replicas - Interpret the output of "docker inspect" commands - Manipulate a running stack of services - Identify the steps needed to troubleshoot a service not deploying - Describe how to provide configuration to Kubernetes pods using configMaps and secrets - Describe how to deploy containerized workloads as Kubernetes pods and deployments - Describe how a Dockerized application communicates with legacy systems - Convert an application deployment into a stack file using a YAML compose file with "docker stack deploy" - Extend the instructions to run individual containers into running services under swarm - Describe the difference between global and replicated services |
| Topic 6: Networking | 15% | - Understand the Container Network Model and how it interfaces with the Docker engine and network and IPAM drivers - Publish a port so that an application is accessible externally - Create a Docker bridge network for a developer to use for their containers - Describe how to install a remote driver to a specific infrastructure provider - Describe the different types and use cases for the built-in network drivers - Troubleshoot container and engine logs to understand a connectivity issue between containers - Describe the differences between "host" and "ingress" port publishing mode - Identify which IP and port a container is externally accessible on - Configure Docker to use external DNS |
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