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The most appropriate answer to the question is that the Sandbox component in the container network model is responsible for managing container interfaces, routing tables, and DNS settings.

In container orchestration environments, a Sandbox acts as a layer that encapsulates the complexities of network management for containers. It ensures that each container has the necessary configurations to communicate effectively and securely with other containers and external networks. This includes creating and managing virtual interfaces for each container, maintaining routing tables that dictate how network traffic is directed between containers, and configuring DNS settings to resolve service names to IP addresses within the container ecosystem.

The other components, while important in their own rights, do not carry out this specific function:

- The Bridge typically refers to a networking component that connects multiple networks but does not manage the settings directly.

- The Network Interface refers to the endpoint of a communication path but does not encompass broader functionalities such as routing tables and DNS management.

- The Host Network focuses on the physical machine network layer rather than the container-specific aspects involved in managing interfaces and routing.

Therefore, the role of the Sandbox is critical in orchestrating how containers interact within a network, making this the correct choice.