Final answer:
An Intrusion Detection System (IDS) is used to actively monitor for specific file types being transmitted on the network.
Step-by-step explanation:
The technology used to actively monitor for specific file types being transmitted on the network is an Intrusion Detection System (IDS).
An IDS is a security technology that detects and alerts administrators when there are suspicious or unauthorized activities on a network. It can monitor the network traffic, analyze the content of the packets, and identify specific file types based on their signatures or characteristics.
For example, an IDS can be configured to alert administrators if it detects any outgoing transmission of sensitive file types like credit card numbers or confidential documents.
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