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  • Book Overview & Buying Docker Certified Associate (DCA): Exam Guide
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Docker Certified Associate (DCA): Exam Guide

Docker Certified Associate (DCA): Exam Guide

By : Francisco Javier Ramírez Urea
4.4 (5)
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Docker Certified Associate (DCA): Exam Guide

Docker Certified Associate (DCA): Exam Guide

4.4 (5)
By: Francisco Javier Ramírez Urea
Buy this Book

Overview of this book

Developers have changed their deployment artifacts from application binaries to container images, and they now need to build container-based applications as containers are part of their new development workflow. This Docker book is designed to help you learn about the management and administrative tasks of the Containers as a Service (CaaS) platform. The book starts by getting you up and running with the key concepts of containers and microservices. You'll then cover different orchestration strategies and environments, along with exploring the Docker Enterprise platform. As you advance, the book will show you how to deploy secure, production-ready, container-based applications in Docker Enterprise environments. Later, you'll delve into each Docker Enterprise component and learn all about CaaS management. Throughout the book, you'll encounter important exam-specific topics, along with sample questions and detailed answers that will help you prepare effectively for the exam. By the end of this Docker containers book, you'll have learned how to efficiently deploy and manage container-based environments in production, and you will have the skills and knowledge you need to pass the DCA exam.
Table of Contents (22 chapters)
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Preface
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Preface
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Who this book is for
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What this book covers
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To get the most out of this book
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Get in touch
1
Section 1 - Key Container Concepts
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Section 1 - Key Container Concepts
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2
Modern Infrastructures and Applications with Docker
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Modern Infrastructures and Applications with Docker
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Technical requirements
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Understanding the evolution of applications
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Infrastructures
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Processes
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Microservices and processes
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What are containers?
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Learning about the main concepts of containers
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Docker components
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Building, shipping, and running workflows
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Windows containers
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Customizing Docker
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Docker security
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Chapter labs
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Summary
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Questions
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Further reading
3
Building Docker Images
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Building Docker Images
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Technical requirements
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Building Docker images
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Understanding copy-on-write filesystems
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Building images with a Dockerfile reference
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Image tagging and meta-information
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Docker registries and repositories
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Securing images
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Managing images and other related objects
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Multistage building and image caches
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Templating images
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Image releases and updates
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Chapter labs
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Summary
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Questions
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Further reading
4
Running Docker Containers
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Running Docker Containers
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Technical requirements
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Reviewing the Docker command line in depth
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Learning about Docker objects
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Running containers
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Interacting with containers
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Limiting host resources
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Converting containers into images
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Formatting and filtering information
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Managing devices
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Chapter labs
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Summary
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Questions
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Further reading
5
Container Persistency and Networking
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Container Persistency and Networking
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Technical requirements
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Understanding stateless and stateful containers
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Learning about different persistence strategies
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Networking in containers
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Learning about container interactions
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Publishing applications
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Chapter labs
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Summary
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Questions
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Further reading
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Deploying Multi-Container Applications
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Deploying Multi-Container Applications
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Technical requirements
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Installing and using Docker Compose
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Understanding the docker-compose.yaml file
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Using the Docker Compose command-line interface
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Customizing images with docker-compose
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Automating your desktop and CI/CD with Docker Compose
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Chapter labs
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Summary
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Questions
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Further reading
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Introduction to Docker Content Trust
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Introduction to Docker Content Trust
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Technical requirements
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The Update Framework
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Signing images
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Reviewing signatures
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Creating and running applications in trusted environments
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Chapter labs
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Summary
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Questions
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Further reading
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Section 2 - Container Orchestration
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Section 2 - Container Orchestration
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Introduction to Orchestration
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Introduction to Orchestration
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Introducing orchestration concepts
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Learning about container orchestration
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Scheduling applications cluster-wide
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Managing data and persistency
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Scaling and updating application components
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Summary
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Questions
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Further reading
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Orchestration Using Docker Swarm
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Orchestration Using Docker Swarm
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Technical requirements
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Deploying Docker Swarm
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Creating a Docker Swarm cluster
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Scheduling workloads in the cluster – tasks and services
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Deploying applications using Stacks and other Docker Swarm resources
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Networking in Docker Swarm
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Chapter labs
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Summary
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Questions
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Further reading
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Orchestration Using Kubernetes
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Orchestration Using Kubernetes
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Technical requirements
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Deploying Kubernetes using Docker Engine
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Deploying a Kubernetes cluster with high availability
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Pods, services, and other Kubernetes resources
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Deploying orchestrated resources
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Kubernetes networking
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Publishing applications
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Kubernetes security components and features
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Comparing Docker Swarm and Kubernetes side by side
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Chapter labs
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Summary
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Questions
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Further reading
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Section 3 - Docker Enterprise
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Section 3 - Docker Enterprise
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Introduction to the Docker Enterprise Platform
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Introduction to the Docker Enterprise Platform
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Reviewing the Docker editions
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Understanding CaaS
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The Docker Enterprise platform
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Planning your Docker Enterprise deployment
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Summary
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Questions
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Further reading
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Universal Control Plane
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Universal Control Plane
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Technical requirements
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Understanding UCP components and features
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Deploying UCP with high availability
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Reviewing the Docker UCP environment
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Role-based access control and isolation
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UCP's Kubernetes integration
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UCP administration and security
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Backup strategies
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Upgrades, monitoring, and troubleshooting
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Summary
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Questions
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Further reading
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Publishing Applications in Docker Enterprise
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Publishing Applications in Docker Enterprise
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Technical requirements
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Understanding publishing concepts and components
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Understanding an application's logic
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Publishing applications in Kubernetes using ingress controllers
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Using Interlock to publish applications deployed in Docker Swarm
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Reviewing Interlock usage
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Summary
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Questions
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Further reading
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Implementing an Enterprise-Grade Registry with DTR
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Implementing an Enterprise-Grade Registry with DTR
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Technical requirements
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Understanding DTR components and features
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Deploying DTR with high availability
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Learning about RBAC
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Image scanning and security features
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Integrating and automating image workflow
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Backup strategies
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Updates, health checks, and troubleshooting
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Summary
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Questions
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Further reading
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Section 4 - Preparing for the Docker Certified Associate Exam
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Section 4 - Preparing for the Docker Certified Associate Exam
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Summarizing Important Concepts
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Summarizing Important Concepts
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Reviewing orchestration concepts
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A brief summary of Docker image concepts
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A summary of the Docker architecture, installation, and configuration topics
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A summary of the networking topics
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Understanding security concepts and related Docker features
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Quickly summarizing Docker storage and volumes
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Summary
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Mock Exam Questions and Final Notes
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Mock Exam Questions and Final Notes
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Docker Certified Associate exam details
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Mock exam questions
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Summary
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Assessments
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Chapter 1
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Chapter 2
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Chapter 3
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Chapter 4
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Chapter 5
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Chapter 6
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Chapter 7
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Chapter 8
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Chapter 9
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Chapter 10
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Chapter 11
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Chapter 12
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Chapter 13
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Exam answers
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Other Books You May Enjoy
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Other Books You May Enjoy
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Leave a review - let other readers know what you think
Section 1 - Key Container Concepts

This first section focuses on key container concepts. We will learn their main features, how to create images, how to provide networking and persistent storage features, and how containers help us to improve security in relation to processes. You will also learn how to create and deploy container-based applications on Linux and Windows environments.

This section comprises the following chapters:

  • Chapter 1, Modern Infrastructures and Applications with Docker
  • Chapter 2, Building Docker Images
  • Chapter 3, Running Docker Containers
  • Chapter 4, Container Persistency and Networking
  • Chapter 5, Deploying Multi-Container Applications
  • Chapter 6, Introduction to Docker Content Trust
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