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Reference: https://dockerlabs.collabnix.com/docker/dca.html
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Who should take the Docker Certified Associate Exam
The DCA Exam certification is an internationally-recognized certification that helps to have validation for those professionals who are knowledgeable in the Docker containerization technology. Candidates should have 6-12 months of experience and knowledge of using Docker services and docker images. It is good for these candidates:
- IT Administrator
- Linux Administrator
- Fresher
- Developers
Docker Certified Associate Exam Certified Professional salary
The average salary of a Docker Certified Associate in
- Europe - 61,547 EURO
- England - 62,532 POUND
- United State - 80,000 USD
- India - 12,00,327 INR
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Docker DCA Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Storage and Volumes | 10% | - Describe the use of tmpfs for ephemeral storage - Describe the storage models available for DTR (NFS, local) - Describe the different graph driver storage backends - Describe how to use a volume plugin (local vs. NFS) - Describe how volumes work with containers - Identify the steps to take to clean up unused images on a filesystem and DTR |
| Topic 2: Orchestration | 25% | - Describe how to provide configuration to Kubernetes pods using configMaps and secrets - Interpret the output of "docker inspect" commands - Describe the difference between global and replicated services - Describe how to deploy containerized workloads as Kubernetes pods and deployments - Extend the instructions to run individual containers into running services under swarm - Manipulate a running stack of services - Increase number of replicas - State the differences between running a container vs running a service - Identify the steps needed to troubleshoot a service not deploying - Convert an application deployment into a stack file using a YAML compose file with "docker stack deploy" - Describe and demonstrate how to use replication mode - Add networks, publish ports - Mount volumes - Describe how a Dockerized application communicates with legacy systems - Demonstrate steps to lock a swarm cluster - Complete the setup of a swarm mode cluster |
| Topic 3: Image Creation, Management, and Registry | 20% | - Describe options, such as add, copy, volumes, expose, entry point - Demonstrate tagging an image - Describe how image layers work - Describe how to set up and use a local registry - Identify and display the main parts of a Dockerfile - Describe the use of Dockerfile - Inspect images and report specific attributes using filter and format - Describe how an image registry works - Use CLI commands such as list, delete, prune, rmi, etc. to manage images - Display layers of a Docker image - Utilize a registry to store an image - Apply a file to create a new image - Give examples on how to create an efficient image via a Dockerfile |
| Topic 4: Networking | 15% | - Describe how to install a remote driver to a specific infrastructure provider - Publish a port so that an application is accessible externally - Configure Docker to use external DNS - Troubleshoot container and engine logs to understand a connectivity issue between containers - 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 - Create a Docker bridge network for a developer to use for their containers - Describe the different types and use cases for the built-in network drivers - Identify which IP and port a container is externally accessible on |
| Topic 5: Security | 15% | - Enable Docker Content Trust - Describe the difference between UCP and DTR - Compare the UCP workers and managers - Describe identity roles - Configure RBAC with UCP - Describe the process to sign a Docker image - Describe swarm default security - Describe MTLS and identity roles - Describe MTLS - Describe default engine security - Describe the security architecture and responsibilities of the Docker EE platform - Describe UCP and DTR integration with LDAP/AD |
| Topic 6: Installation and Configuration | 15% | - Create and manager user and teams - Complete setup of repo, select a storage driver, and complete installation of Docker engine on multiple platforms - Describe the use of UCP (Universal Control Plane) - Describe namespaces, cgroups, and configuration of certificates - Configure logging drivers (splunk, journald, etc.) - Outline the sizing requirements prior to installation - Demonstrate the ability to upgrade the Docker engine - Interpret errors to troubleshoot installation issues without assistance - Use the install command to install DTR (Docker Trusted Registry) - Describe the interaction between Docker and Linux - Setup swarm, configure managers, add nodes, and setup the backup schedule |
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