Book Image

Docker Certified Associate (DCA): Exam Guide

By : Francisco Javier Ramírez Urea
Book Image

Docker Certified Associate (DCA): Exam Guide

By: Francisco Javier Ramírez Urea

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)
1
Section 1 - Key Container Concepts
8
Section 2 - Container Orchestration
12
Section 3 - Docker Enterprise
17
Section 4 - Preparing for the Docker Certified Associate Exam

Questions

  1. Which of the following options is not available for containers?

a) build
b) update
c) destroy
d) create

  1. Which of the following sentences is false?

a) A container's life is managed using start and stop commands
b) Containers always stop after 10 seconds
c) Containers can be created and then started
d) Volumes created during the container's lifetime must be deleted by hand unless we use the -v option when deleting the container

  1. Which of the following sentences is true in relation to docker kill?

a) It will kill all container processes
b) It will send a SIGKILL signal to the container's main process
c) It will remove the container once it is killed
d) It will wait 10 seconds by default before really killing the container

  1. We executed a container named webserver. Which of the following sentences is false?

a) It can be removed using docker container rm --force
b) We can update its image using docker container update
c) We can rename the webserver container to websrv...