How to study the Docker Certified Associate Exam
The preparation of certification exams could be covered with two resource types. The first one is the study guides, reference books, and study forums that are elaborated and appropriate for building information from the ground up. Apart from the video tutorials and lectures are a good option to ease the pain of through study and are relatively make the study process more interesting nonetheless these demand time and concentration from the learner.
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Reference: https://dockerlabs.collabnix.com/docker/dca.html
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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.
For more info read reference:
Docker blog Docker Use Case Docker Newsrooms Docker Exam Preparation Guide Docker Docs Docker forums
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How to book the Docker Certified Associate Exam
There are the following steps for registering the Docker Certified Associate exam:
- Step 1: Visit to Docker Examity proctors.
- Step 2: Sign up/Login to Docker account.
- Step 3: Make payment for the exam voucher using your credit or debit card.
- Step 4: You will receive exam voucher code on your email and then using that voucher code you can book your exam by selecting dates, time etc.
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Docker DCA Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Networking | 15% | - Describe the differences between "host" and "ingress" port publishing mode - Configure Docker to use external DNS - 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 - Describe how to install a remote driver to a specific infrastructure provider - Troubleshoot container and engine logs to understand a connectivity issue between containers - 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 2: 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 - Identify the steps to take to clean up unused images on a filesystem and DTR - Describe the storage models available for DTR (NFS, local) - Describe the different graph driver storage backends |
| Topic 3: Installation and Configuration | 15% | - Demonstrate the ability to upgrade the Docker engine - Setup swarm, configure managers, add nodes, and setup the backup schedule - Use the install command to install DTR (Docker Trusted Registry) - Configure logging drivers (splunk, journald, etc.) - Describe the use of UCP (Universal Control Plane) - Describe namespaces, cgroups, and configuration of certificates - Interpret errors to troubleshoot installation issues without assistance - Describe the interaction between Docker and Linux - Complete setup of repo, select a storage driver, and complete installation of Docker engine on multiple platforms - Create and manager user and teams - Outline the sizing requirements prior to installation |
| Topic 4: Image Creation, Management, and Registry | 20% | - Inspect images and report specific attributes using filter and format - Identify and display the main parts of a Dockerfile - Demonstrate tagging an image - Give examples on how to create an efficient image via a Dockerfile - Use CLI commands such as list, delete, prune, rmi, etc. to manage images - Utilize a registry to store an image - Describe how an image registry works - Describe how to set up and use a local registry - Display layers of a Docker image - Describe how image layers work - Describe the use of Dockerfile - Describe options, such as add, copy, volumes, expose, entry point - Apply a file to create a new image |
| Topic 5: Security | 15% | - Enable Docker Content Trust - Describe the security architecture and responsibilities of the Docker EE platform - Describe the process to sign a Docker image - Configure RBAC with UCP - Describe MTLS and identity roles - Describe swarm default security - Describe UCP and DTR integration with LDAP/AD - Describe the difference between UCP and DTR - Compare the UCP workers and managers - Describe identity roles - Describe default engine security - Describe MTLS |
| Topic 6: Orchestration | 25% | - Increase number of replicas - Manipulate a running stack of services - Demonstrate steps to lock a swarm cluster - Describe and demonstrate how to use replication mode - Interpret the output of "docker inspect" commands - 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 - Mount volumes - Describe the difference between global and replicated services - 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 - Describe how to provide configuration to Kubernetes pods using configMaps and secrets - Add networks, publish ports - State the differences between running a container vs running a service - Complete the setup of a swarm mode cluster |
