Which of the following modules does not have additional port requirements?

The module that does not have additional port requirements is Asset. This module primarily operates using the default ports associated with Tanium's communication protocols, which are typically designed to work seamlessly within the infrastructure without needing extra configurations for specific port access.

Asset focuses on providing visibility into the hardware and software inventory across the endpoints within a network, making use of the existing Tanium architecture. Its functionality is built upon the foundational aspects of Tanium's core communication model, where most of the essential operations can be accomplished without requiring modifications to network port configurations.

In contrast, the Discover, Comply, and Engage modules typically necessitate specific port openings for their extra functionalities and communication pathways, which involve different network interactions or integrations. Hence, the Asset module stands out because it retains a straightforward communication approach without additional port dependencies.