In the Docker Container Network Model (CNM), what refers to an isolated unit for a single container's networking components?

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In the Docker Container Network Model (CNM), the term that refers to an isolated unit for a single container's networking components is the sandbox. A sandbox provides a dedicated environment for the networking stack of a container, allowing it to have its own network namespace. This isolation is crucial for ensuring that the container's networking components function independently and do not interfere with those of other containers on the same host.

This concept allows each container to be assigned its own IP address and networking configuration, enhancing security and enabling different containers to communicate over their own private networks without conflict. In essence, the sandbox environment ensures that the networking setup for each container is both isolated and secure, which is fundamental for containerized applications.

Understanding the role of a sandbox in the CNM is vital for grasping how networking works within Docker and how it facilitates communication between containers while maintaining separation and integrity for each individual application instance.

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