What data link tool is used to request specific data that has been purged or dropped locally from one or more command and control interface units?

The data link tool used to request specific data that has been purged or dropped locally is known as a Data Update Request. This tool is specifically designed for instances where data previously stored within a system has been lost or removed, allowing personnel to retrieve that data from other command and control interface units that still retain it. The Data Update Request serves as a formal communication method to ensure that necessary data can be accurately and efficiently acquired for operational needs.

In contrast, other options like the Data Request Form may serve a more general function or pertain to different types of requests. The Command Input Request focuses on inputting commands rather than retrieving lost data, and the Control Orders Form likely relates to the management of active control directives rather than data retrieval processes. Thus, the Data Update Request is uniquely suited for the context of recovering or fetching previously purged information from across units.