Docker Certified Associate Certification Training Course - Host Network

The video tutorial explains Docker host networking, where a container shares its network namespace with the host, optimizing performance and handling a large range of ports without network address translation. It contrasts this with Docker's bridge network, which provides isolation for containers. The tutorial includes practical examples, such as running an Nginx container on a host network, and provides commands to verify the setup. Host networking is supported only on Linux hosts and not on Docker Desktop for Mac or Windows.

What is a key advantage of using Docker host networking?

• It allows containers to use the host's network directly, optimizing performance.

• It supports multiple hosts running Docker engine.

• It is supported on all operating systems.

• It provides complete isolation for containers.

In a bridge network, what happens if a web application is not specified to a custom network?

• It will run on the default bridge network.

• It will be isolated from the host IP address.

• It will not be able to communicate with any other container.

• It will automatically join the host network.

Why might a ping from one container to another fail in a bridge network setup?

• Because they are on the same network.

• Because they are on different networks.

• Because the containers are not running.

• Because the host network is not configured.

Which operating systems do not support Docker host networking?

• Docker desktop for Mac

• Linux hosts

• Docker desktop for Windows

• Both Docker desktop for Mac and Windows

What command is used to stop and remove a Docker container that was started with the --rm option?

• docker container remove

• docker container delete

• docker container stop

• docker container pause