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Docker Certified Associate (DCA): Exam Guide

You're reading from   Docker Certified Associate (DCA): Exam Guide Enhance and validate your Docker skills by gaining Docker certification

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Product type Paperback
Published in Sep 2020
Publisher Packt
ISBN-13 9781839211898
Length 612 pages
Edition 1st Edition
Tools
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Author (1):
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Francisco Javier Ramírez Urea Francisco Javier Ramírez Urea
Author Profile Icon Francisco Javier Ramírez Urea
Francisco Javier Ramírez Urea
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Toc

Table of Contents (22) Chapters Close

Preface 1. Section 1 - Key Container Concepts
2. Modern Infrastructures and Applications with Docker FREE CHAPTER 3. Building Docker Images 4. Running Docker Containers 5. Container Persistency and Networking 6. Deploying Multi-Container Applications 7. Introduction to Docker Content Trust 8. Section 2 - Container Orchestration
9. Introduction to Orchestration 10. Orchestration Using Docker Swarm 11. Orchestration Using Kubernetes 12. Section 3 - Docker Enterprise
13. Introduction to the Docker Enterprise Platform 14. Universal Control Plane 15. Publishing Applications in Docker Enterprise 16. Implementing an Enterprise-Grade Registry with DTR 17. Section 4 - Preparing for the Docker Certified Associate Exam
18. Summarizing Important Concepts 19. Mock Exam Questions and Final Notes 20. Assessments 21. Other Books You May Enjoy

Questions

In this chapter, we reviewed container persistency and networking in non-cluster environments. Let's verify our understanding of these topics with some questions:

  1. Which of the following statements is not true?

a) Containers are not ephemeral – once created, they will stay in the host unless they are removed.
b) We can run more than one container at a time using the same image.
c) Containers created from the same image share their filesystems.
d) All of these statements are false.

  1. Which methods are allowed when creating a volume?

a) We can manually create a volume using the docker volume create command for volume objects.
b) We can declare a VOLUME sentence in a Dockerfile to use a volume on containers created from a built image.
c) We can use Docker host filesystems inside containers as if they were Docker volumes.
d) Volume creation is only allowed in terms of container creation or execution.

  1. When we remove a container, all associated volumes will be removed...
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