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How to study the Docker Certified Associate Exam

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Topics of Docker Certified Associate Exam

Candidates should apprehend the examination topics before they begin of preparation. Our DCA exam dumps will include the following topics:

Lesson 01 - Introduction

  • Docker Architecture InAction
  • Images And Containers
  • Containerization And Virtualization
  • Understanding Docker Overview
  • Docker Ecosystem
  • Docker Architecture Engine And Objects
  • Docker Architecture Container Format

Lesson 02 - Understanding Docker

  • End of Module
  • Containers on Filesystem
  • Deploy, Login, Exit Container
  • Deleting Containers
  • Multiple Containers
  • Working with Containers Hostnames
  • List,Start, Stop Restart Containers
  • Stats Inspect
  • Installation: continued
  • Installation: CentOS
  • Docker On Linux Platform

Lesson 03 - Docker CE on Linux Platform

  • Introduction to Overlay Network
  • Host Network
  • Remove Networks
  • Bridge Network
  • Create New Networks
  • Multiple Networks In Container
  • Disconnect And Add Network
  • Container Networking
  • Docker Networking
  • Exercise: Use Custom Networks
  • None Network

Lesson 04 - Docker Networking

  • Docker Images CLI Commands: Contd
  • Build Image using Dockerfile
  • External Storage
  • Manage Application Data
  • Push Images to Docker Hub
  • Selecting Storage Driver
  • Docker Storage and Volumes
  • Docker Images: Recap
  • Docker Images
  • Persistent Storage
  • Docker tmpfs Mounts
  • Build Image using Commit
  • Docker Volumes
  • Search and Pull Images from Docker Hub
  • Docker file Instructions
  • Docker Bind Mounts
  • Docker Images CLI Commands
  • Docker Storage Drivers
  • Lesson 05 - Docker Images

Lesson 06 - Docker Storage and Volumes

  • Case for Docker Compose
  • Compose Lab
  • Compose Installation
  • Docker Compose

Lesson 07 - Docker Compose

  • Managing Swarm Services
  • Concepts of Swarm
  • Docker Swarm
  • Docker Stack
  • Create Swarm
  • Updates to Services
  • Secrets and Overlay Network
  • Deploy Services to Swarm
  • Maintain Swarm

Lesson 08 - Orchestration Docker Swarm

  • Introduction to UCP
  • LDAP with UCP
  • Deploy, Manage, and Monitor UCP
  • External Certificates
  • Access Control
  • Universal Control Plane
  • Client Certificate Bundles

Lesson 09 - Universal Control Plane

  • Backup Swarm UCP DTR
  • Docker Trusted Registry
  • Miscellaneous Topic with DTR
  • Introduction Deploy DTR

Lesson 10 - Docker Trusted Registry

  • Security With MTLS
  • Docker Security Logs
  • Logs and Logging Drivers
  • Docker Content Trust
  • Security Scanning

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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:

  • Linux Administrator
  • Developers
  • IT Administrator
  • Fresher

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.

Docker DCA Exam Syllabus Topics:

SectionWeightObjectives
Image Creation, Management, and Registry20%- Give examples on how to create an efficient image via a Dockerfile
- Describe how image layers work
- Utilize a registry to store an image
- Describe options, such as add, copy, volumes, expose, entry point
- Describe how an image registry works
- Apply a file to create a new image
- Display layers of a Docker image
- Use CLI commands such as list, delete, prune, rmi, etc. to manage images
- Describe the use of Dockerfile
- Describe how to set up and use a local registry
- Inspect images and report specific attributes using filter and format
- Demonstrate tagging an image
- Identify and display the main parts of a Dockerfile
Orchestration25%- Complete the setup of a swarm mode cluster
- Describe the difference between global and replicated services
- Manipulate a running stack of services
- Increase number of replicas
- Interpret the output of "docker inspect" commands
- State the differences between running a container vs running a service
- Demonstrate steps to lock a swarm cluster
- Describe how to provide configuration to Kubernetes pods using configMaps and secrets
- Describe how to deploy containerized workloads as Kubernetes pods and deployments
- Identify the steps needed to troubleshoot a service not deploying
- Describe how a Dockerized application communicates with legacy systems
- Mount volumes
- Extend the instructions to run individual containers into running services under swarm
- Describe and demonstrate how to use replication mode
- Convert an application deployment into a stack file using a YAML compose file with "docker stack deploy"
- Add networks, publish ports
Security15%- Describe MTLS
- Describe swarm default security
- Describe the process to sign a Docker image
- Configure RBAC with UCP
- Describe default engine security
- Enable Docker Content Trust
- Describe the difference between UCP and DTR
- Compare the UCP workers and managers
- Describe identity roles
- Describe the security architecture and responsibilities of the Docker EE platform
- Describe UCP and DTR integration with LDAP/AD
- Describe MTLS and identity roles
Installation and Configuration15%- Describe namespaces, cgroups, and configuration of certificates
- Use the install command to install DTR (Docker Trusted Registry)
- Configure logging drivers (splunk, journald, etc.)
- Interpret errors to troubleshoot installation issues without assistance
- Setup swarm, configure managers, add nodes, and setup the backup schedule
- Outline the sizing requirements prior to installation
- Describe the use of UCP (Universal Control Plane)
- Create and manager user and teams
- Complete setup of repo, select a storage driver, and complete installation of Docker engine on multiple platforms
- Demonstrate the ability to upgrade the Docker engine
- Describe the interaction between Docker and Linux
Networking15%- Identify which IP and port a container is externally accessible on
- 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
- 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
- Configure Docker to use external DNS
- 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
Storage and Volumes10%- 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 different graph driver storage backends
- Describe how volumes work with containers
- Describe how to use a volume plugin (local vs. NFS)
- Describe the storage models available for DTR (NFS, local)

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