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Last Updated: Aug 07, 2026
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The average salary of a Docker Certified Associate in
Reference: https://dockerlabs.collabnix.com/docker/dca.html
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Docker Certified Associate (DCA) certification serves as a foundational benchmark for real-world container technology expertise with Docker Enterprise Edition. Candidates for DCA Exam are seeking to prove fundamental Docker containerization technology knowledge and skills. Before taking this exam, exam aspirants ought to have a solid fundamental information of the concepts shared in the preparation guide as well as on containerization.
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| Section | Weight | Objectives |
|---|---|---|
| Image Creation, Management, and Registry | 20% | - Describe how to set up and use a local registry - Describe the use of Dockerfile - Identify and display the main parts of a Dockerfile - Demonstrate tagging an image - Display layers of a Docker image - Inspect images and report specific attributes using filter and format - Use CLI commands such as list, delete, prune, rmi, etc. to manage images - Apply a file to create a new image - Give examples on how to create an efficient image via a Dockerfile - Utilize a registry to store an image - Describe options, such as add, copy, volumes, expose, entry point - Describe how an image registry works - Describe how image layers work |
| Storage and Volumes | 10% | - Describe the storage models available for DTR (NFS, local) - Describe how volumes work with containers - Describe the different graph driver storage backends - Identify the steps to take to clean up unused images on a filesystem and DTR - Describe how to use a volume plugin (local vs. NFS) - Describe the use of tmpfs for ephemeral storage |
| Security | 15% | - Describe the difference between UCP and DTR - Describe the process to sign a Docker image - Describe identity roles - Describe UCP and DTR integration with LDAP/AD - Describe the security architecture and responsibilities of the Docker EE platform - Describe default engine security - Enable Docker Content Trust - Compare the UCP workers and managers - Configure RBAC with UCP - Describe MTLS - Describe swarm default security - Describe MTLS and identity roles |
| Installation and Configuration | 15% | - Configure logging drivers (splunk, journald, etc.) - Demonstrate the ability to upgrade the Docker engine - 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 - Use the install command to install DTR (Docker Trusted Registry) - Create and manager user and teams - Outline the sizing requirements prior to installation - Setup swarm, configure managers, add nodes, and setup the backup schedule - Describe the interaction between Docker and Linux - Describe namespaces, cgroups, and configuration of certificates - Interpret errors to troubleshoot installation issues without assistance |
| Orchestration | 25% | - Demonstrate steps to lock a swarm cluster - Complete the setup of a swarm mode cluster - Describe how to deploy containerized workloads as Kubernetes pods and deployments - Add networks, publish ports - Manipulate a running stack of services - Describe how to provide configuration to Kubernetes pods using configMaps and secrets - Extend the instructions to run individual containers into running services under swarm - State the differences between running a container vs running a service - Describe the difference between global and replicated services - Describe and demonstrate how to use replication mode - Mount volumes - Interpret the output of "docker inspect" commands - Describe how a Dockerized application communicates with legacy systems - Increase number of replicas - Convert an application deployment into a stack file using a YAML compose file with "docker stack deploy" - Identify the steps needed to troubleshoot a service not deploying |
| Networking | 15% | - Configure Docker to use external DNS - Understand the Container Network Model and how it interfaces with the Docker engine and network and IPAM drivers - 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 how to install a remote driver to a specific infrastructure provider - Publish a port so that an application is accessible externally - Create a Docker bridge network for a developer to use for their containers - Describe the differences between "host" and "ingress" port publishing mode - Identify which IP and port a container is externally accessible on |
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