Docker Certified Associate Certification Training Course - Docker Base Images

The video tutorial explains Docker images, starting with an introduction to their concept as templates. It covers methods to create images from a base or from scratch, emphasizing Docker's layered storage architecture. The tutorial also details how to remove images using specific commands and options, and concludes with instructions on saving and loading Docker images for backup and transfer purposes.

What is a Docker image primarily described as?

• A software package

• A virtual machine

• A template frozen in time

• A running container

Which directive is used in a Dockerfile to create an image from scratch?

• FROM template

• FROM scratch

• FROM parent

• FROM base

What architecture is Docker image storage based on?

• Layered storage

• Monolithic storage

• Distributed storage

• Hierarchical storage

Which command is used to remove a Docker image?

• docker rm

• docker delete

• docker remove

• docker rmi

How can a saved Docker image be loaded onto a Docker host?

• Using docker save

• Using docker import

• Using docker export

• Using docker load