- c: Docker Content Trust is based on The Update Framework (TUF) and this framework was created to ensure the release of content between updates using different keys. It is possible to validate the trustfulness of a package or any other content using TUF.
- a and d: Docker Content Trust will use Root, Targets, Snapshot, and Timestamp keys to ensure content.
- c: We ensure image freshness using Content Trust, but it is true that we cannot ensure that the image tagged as "latest" in a given repository is actually the latest one created. We can only ensure that the image tagged as "latest" will be used. It is always recommended to use tags avoiding the use of "latest".
- b: We tried to sign a version of a non-public write repository. We are not allowed to modify root repositories at docker.io.
- d: We can recover the key if we have a backup. If it is not possible, we can generate a new one or let Docker generate one for us on first signing. Although we will...
Docker Certified Associate (DCA): Exam Guide
By :
Docker Certified Associate (DCA): Exam Guide
By:
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)
Preface
Section 1 - Key Container Concepts
Free Chapter
Modern Infrastructures and Applications with Docker
Building Docker Images
Running Docker Containers
Container Persistency and Networking
Deploying Multi-Container Applications
Introduction to Docker Content Trust
Section 2 - Container Orchestration
Introduction to Orchestration
Orchestration Using Docker Swarm
Orchestration Using Kubernetes
Section 3 - Docker Enterprise
Introduction to the Docker Enterprise Platform
Universal Control Plane
Publishing Applications in Docker Enterprise
Implementing an Enterprise-Grade Registry with DTR
Section 4 - Preparing for the Docker Certified Associate Exam
Summarizing Important Concepts
Mock Exam Questions and Final Notes
Assessments
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