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Docker Certified Associate (DCA) Certification Exam is designed for professionals with a fundamental understanding of Docker technologies and their application in real-world scenarios. DCA exam covers a wide range of topics, including Docker installation and configuration, containerization, Docker networking, security, and troubleshooting. Docker Certified Associate (DCA) Exam certification exam is a comprehensive test of the candidate's skills and knowledge in these areas.
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The DCA exam covers a range of topics related to Docker, including containerization, orchestration, networking, security, and storage. DCA exam is designed to test the candidate's ability to work with Docker in real-world scenarios, and it includes both multiple-choice and interactive tasks. DCA exam is computer-based and can be taken online from anywhere in the world, making it accessible to candidates from all backgrounds and locations.
Reference: https://dockerlabs.collabnix.com/docker/dca.html
Docker DCA Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Installation and Configuration | 15% | - Setup swarm, configure managers, add nodes, and setup the backup schedule - Demonstrate the ability to upgrade the Docker engine - Outline the sizing requirements prior to installation - Use the install command to install DTR (Docker Trusted Registry) - Create and manager user and teams - 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 - Configure logging drivers (splunk, journald, etc.) - Describe namespaces, cgroups, and configuration of certificates - Describe the interaction between Docker and Linux - Interpret errors to troubleshoot installation issues without assistance |
| Orchestration | 25% | - Increase number of replicas - Describe the difference between global and replicated services - Describe and demonstrate how to use replication mode - State the differences between running a container vs running a service - Interpret the output of "docker inspect" commands - Extend the instructions to run individual containers into running services under swarm - Describe how a Dockerized application communicates with legacy systems - Identify the steps needed to troubleshoot a service not deploying - Describe how to deploy containerized workloads as Kubernetes pods and deployments - Add networks, publish ports - Demonstrate steps to lock a swarm cluster - Convert an application deployment into a stack file using a YAML compose file with "docker stack deploy" - Complete the setup of a swarm mode cluster - Mount volumes - Manipulate a running stack of services - Describe how to provide configuration to Kubernetes pods using configMaps and secrets |
| Storage and Volumes | 10% | - Describe how to use a volume plugin (local vs. NFS) - Describe how volumes work with containers - Describe the use of tmpfs for ephemeral storage - 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 |
| Security | 15% | - Describe default engine security - Describe MTLS - Describe identity roles - Compare the UCP workers and managers - Describe the process to sign a Docker image - Configure RBAC with UCP - Describe the difference between UCP and DTR - Enable Docker Content Trust - Describe swarm default security - Describe MTLS and identity roles - Describe UCP and DTR integration with LDAP/AD - Describe the security architecture and responsibilities of the Docker EE platform |
| Image Creation, Management, and Registry | 20% | - Identify and display the main parts of a Dockerfile - Describe how an image registry works - Demonstrate tagging an image - Give examples on how to create an efficient image via a Dockerfile - Describe the use of Dockerfile - Apply a file to create a new image - Describe how to set up and use a local registry - Describe how image layers work - Utilize a registry to store an image - Describe options, such as add, copy, volumes, expose, entry point - 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 |
| Networking | 15% | - 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 - Configure Docker to use external DNS - Describe the different types and use cases for the built-in network drivers - Identify which IP and port a container is externally accessible on - Troubleshoot container and engine logs to understand a connectivity issue between containers - Publish a port so that an application is accessible externally - Describe the differences between "host" and "ingress" port publishing mode - Understand the Container Network Model and how it interfaces with the Docker engine and network and IPAM drivers |
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