Docker for Beginners Practice Exam

Docker for Beginners Practice Exam

The Docker for Beginners exam is designed to assess foundational knowledge and practical skills in containerization using Docker. This entry-level exam covers core Docker concepts, tools, and practices, providing a solid understanding of how Docker simplifies application deployment, scaling, and management across various environments. The exam ensures that candidates can effectively use Docker to build, deploy, and manage containerized applications, laying the groundwork for advanced containerization topics and tools.

Skills Required

Candidates should be proficient in the following skills to succeed in the Docker for Beginners exam:

• Comfort with using the command line interface (CLI) to interact with Docker tools and manage containers.
• Ability to install Docker on various operating systems and set up Docker environments for containerized application management.
• Knowledge of how to create, start, stop, and remove containers, along with managing container logs and performance.
• Understanding how to write and execute Dockerfiles to create custom images for application deployment.
• Familiarity with using Docker Compose to manage multi-container applications and configurations.
• Understanding Docker networking concepts, including the creation and management of container networks.
• Knowledge of Docker Hub and private registries for image storage, distribution, and version management.
• Basic understanding of Docker container security practices and optimizing containerized applications for efficiency.

Who should take the Exam?

The Docker for Beginners exam is intended for individuals who are looking to gain foundational knowledge and practical experience in containerization and Docker technology. This exam is ideal for:

• Aspiring DevOps Engineers
• Developers who want to learn how to use Docker for packaging, testing, and deploying applications in isolated environments.
• System Administrators
• Students and Beginners in Cloud Computing
• Professionals and hobbyists interested in understanding and applying Docker technology to solve real-world application deployment challenges.

Course Outline

The Docker for Beginners Exam covers the following topics - 

1. Introduction

• Overview of Docker

2. Installing Docker

• Steps for Installing Docker

3. Docker Basics - Part 1

• Pulling Images, Running Containers, Stopping/Deleting Containers, Removing Images

4. Docker Basics - Part 2

• Using Docker Inspect, Viewing Logs, Exposing Containers to External Access

5. Docker Networking

• Understanding Default Networks, Creating Custom Networks, Linking Containers to Custom Networks

6. Docker Networking - Part 2

• Working with Host Networks, Deleting Multiple Containers and Images

7. Inter-Container Communication Across Different Networks

• Enabling Communication Between Containers on Different Networks

8. Deleting Networks

• How to Remove Custom Networks

9. Managing Non-Root User Permissions

• Resolving Permission Denied Errors When Accessing Docker with a Non-Root User

10. Docker Volume Permissions (RO/RW)

• Modifying Volume Permissions from Read-Write to Read-Only

11. Cloning and Mounting Docker Volumes

• Cloning a Docker Volume and Mounting it to Another Container

12. Creating a Docker Image from a Running Container

• How to Create an Image from an Active Container

13. Tagging Docker Images

• How to Tag Docker Images and Utilize Them

14. Pushing Custom Images to Docker Hub

• Uploading Custom Images to Your Docker Hub Account

15. Renaming a Docker Container

• How to Rename an Existing Docker Container

16. Dockerfile Basics

• Creating Your First Dockerfile

17. Dockerfile - ENTRYPOINT vs CMD

• Understanding the Difference Between ENTRYPOINT and CMD

18. Dockerfile - Switching Users During Image Creation

• How to Switch Users When Building a Docker Image

19. Additional Dockerfile Concepts

• Exploring Other Key Dockerfile Features

20. Docker Compose

• Introduction to Docker Compose

21. Running Multiple Containers with Docker Compose

• Creating Multi-Tier Applications Using Docker Compose

22. Building Images Using Docker Compose

• Building an Image from Docker Compose and Running the Container Simultaneously

23. Setting Up a WordPress Website with Docker Compose

• Deploying WordPress and MySQL Using Docker Compose

24. Working with Docker's REST API

• Interacting with the Docker Engine's REST API

25. Continuous Integration (CI) with GitHub and Docker Hub

• Implementing Continuous Integration Between GitHub and Docker Hub