Which segment of the Defense Information System Network (DISN) may be a person in the deployed Area of Responsibility or a person sitting in a fixed location thousands of miles from combat?

The correct choice is that the deployed warfighter segment of the Defense Information System Network (DISN) encompasses individuals operating in various environments, whether they are at the front lines in a combat zone or at a secure location far away from the conflict. This segment is specifically designed to provide critical communications support to military personnel engaged in operations, ensuring they have access to necessary information and support regardless of their physical location.

In this context, "deployed warfighter" refers to the service members actively involved in military operations and the communication systems that connect them to command and control resources, intelligence, and logistical support. It emphasizes the versatility of communication access, which is crucial for effective operational execution.

Other segments of DISN, such as long-haul transport infrastructure, primarily focus on the physical means of transferring data across large distances but do not target individual users directly. The Theater Battle Management Core System terminal and the sustaining base serve distinct functions as well; the core system is more specialized towards battlefield management data and applications, while the sustaining base typically deals with logistics and support functions rather than direct combat engagement or the flexibility needed by personnel in varying locations.