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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

Docker DCA Exam Syllabus Topics:

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