Docker Certified Associate Certification Training Course - Transfer Docker Images

The video tutorial explains how to transfer Docker images using archiving and SSH methods, and discusses the Docker registry's role in storing images. It covers cleaning up unused Docker images with the prune command, and demonstrates the Docker build process, highlighting the use of caching to optimize builds. An example is provided to illustrate building a Docker image and utilizing cache effectively.

What is one of the best ways to store Docker container images?

• External hard drive

• Local file system

• Cloud storage

• Docker registry

Which command is used to remove unused Docker images?

• docker delete

• docker remove

• docker image prune

• docker clean

What option can be used with 'docker image prune' to delete all unused images without confirmation?

• --auto

• --silent

• --no-confirm

• --force

What is the purpose of layer caching in Docker builds?

• To reduce the size of the image

• To improve network performance

• To speed up the build process

• To increase security

In a Dockerfile, what happens when a layer changes?

• The Dockerfile is invalidated

• The build process stops

• Only the changed layer is rebuilt

• All subsequent layers are rebuilt

Which command is used to build a Docker image from a Dockerfile?

• docker create

• docker build

• docker assemble

• docker compile

What information can be obtained from the 'docker history' command?

• Container logs

• Network settings

• Build cache size

• Image creation details