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Reference: https://dockerlabs.collabnix.com/docker/dca.html
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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
- Containerization And Virtualization
- Docker Architecture Engine And Objects
- Images And Containers
- Understanding Docker Overview
- Docker Architecture Container Format
- Docker Architecture InAction
- Docker Ecosystem
Lesson 02 - Understanding Docker
- Deleting Containers
- Multiple Containers
- Stats Inspect
- Installation: continued
- Deploy, Login, Exit Container
- End of Module
- List,Start, Stop Restart Containers
- Working with Containers Hostnames
- Docker On Linux Platform
- Installation: CentOS
- Containers on Filesystem
Lesson 03 - Docker CE on Linux Platform
- Introduction to Overlay Network
- Docker Networking
- Disconnect And Add Network
- Create New Networks
- Multiple Networks In Container
- Host Network
- Remove Networks
- Exercise: Use Custom Networks
- None Network
- Container Networking
- Bridge Network
Lesson 04 - Docker Networking
- Docker tmpfs Mounts
- Docker Storage and Volumes
- External Storage
- Docker Images: Recap
- Docker Volumes
- Docker Storage Drivers
- Build Image using Commit
- Docker Images
- Docker Bind Mounts
- Selecting Storage Driver
- Manage Application Data
- Build Image using Dockerfile
- Persistent Storage
- Docker Images CLI Commands
- Search and Pull Images from Docker Hub
- Lesson 05 - Docker Images
- Docker file Instructions
- Docker Images CLI Commands: Contd
- Push Images to Docker Hub
Lesson 06 - Docker Storage and Volumes
- Compose Installation
- Compose Lab
- Docker Compose
- Case for Docker Compose
Lesson 07 - Docker Compose
- Updates to Services
- Concepts of Swarm
- Create Swarm
- Docker Swarm
- Secrets and Overlay Network
- Deploy Services to Swarm
- Managing Swarm Services
- Maintain Swarm
- Docker Stack
Lesson 08 - Orchestration Docker Swarm
- Access Control
- External Certificates
- Deploy, Manage, and Monitor UCP
- Universal Control Plane
- LDAP with UCP
- Client Certificate Bundles
- Introduction to UCP
Lesson 09 - Universal Control Plane
- Backup Swarm UCP DTR
- Introduction Deploy DTR
- Miscellaneous Topic with DTR
- Docker Trusted Registry
Lesson 10 - Docker Trusted Registry
- Logs and Logging Drivers
- Security With MTLS
- Docker Security Logs
- Security Scanning
- Docker Content Trust
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Difficulty in Writing Docker Certified Associate Exam
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Docker DCA Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Installation and Configuration | 15% | - Setup swarm, configure managers, add nodes, and setup the backup schedule - Complete setup of repo, select a storage driver, and complete installation of Docker engine on multiple platforms - Describe the interaction between Docker and Linux - Interpret errors to troubleshoot installation issues without assistance - Configure logging drivers (splunk, journald, etc.) - Describe the use of UCP (Universal Control Plane) - Create and manager user and teams - Describe namespaces, cgroups, and configuration of certificates - Use the install command to install DTR (Docker Trusted Registry) - Outline the sizing requirements prior to installation - Demonstrate the ability to upgrade the Docker engine |
| Networking | 15% | - Describe the differences between "host" and "ingress" port publishing mode - Create a Docker bridge network for a developer to use for their containers - Configure Docker to use external DNS - Understand the Container Network Model and how it interfaces with the Docker engine and network and IPAM drivers - Describe how to install a remote driver to a specific infrastructure provider - Identify which IP and port a container is externally accessible on - Publish a port so that an application is accessible externally - 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 |
| Storage and Volumes | 10% | - Describe the different graph driver storage backends - Describe how to use a volume plugin (local vs. NFS) - Identify the steps to take to clean up unused images on a filesystem and DTR - Describe how volumes work with containers - Describe the use of tmpfs for ephemeral storage - Describe the storage models available for DTR (NFS, local) |
| Orchestration | 25% | - Convert an application deployment into a stack file using a YAML compose file with "docker stack deploy" - Describe how to deploy containerized workloads as Kubernetes pods and deployments - Add networks, publish ports - Extend the instructions to run individual containers into running services under swarm - Describe how to provide configuration to Kubernetes pods using configMaps and secrets - Describe and demonstrate how to use replication mode - Mount volumes - Interpret the output of "docker inspect" commands - Demonstrate steps to lock a swarm cluster - Manipulate a running stack of services - Identify the steps needed to troubleshoot a service not deploying - Increase number of replicas - Describe the difference between global and replicated services - State the differences between running a container vs running a service - Complete the setup of a swarm mode cluster - Describe how a Dockerized application communicates with legacy systems |
| Security | 15% | - Describe the difference between UCP and DTR - Describe identity roles - Describe MTLS and identity roles - Enable Docker Content Trust - Describe MTLS - Describe UCP and DTR integration with LDAP/AD - Describe default engine security - Configure RBAC with UCP - Describe swarm default security - Compare the UCP workers and managers - Describe the security architecture and responsibilities of the Docker EE platform - Describe the process to sign a Docker image |
| Image Creation, Management, and Registry | 20% | - Describe options, such as add, copy, volumes, expose, entry point - Inspect images and report specific attributes using filter and format - Display layers of a Docker image - Give examples on how to create an efficient image via a Dockerfile - Demonstrate tagging an image - Describe the use of Dockerfile - Describe how an image registry works - Use CLI commands such as list, delete, prune, rmi, etc. to manage images - Describe how to set up and use a local registry - Utilize a registry to store an image - Apply a file to create a new image - Identify and display the main parts of a Dockerfile - Describe how image layers work |
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