Which feature of the Sophos Firewall is used to identify unknown applications?

Synchronized App Control is the correct feature used in Sophos Firewall to identify unknown applications. This innovative technology works by leveraging the information and context from Sophos clients and other devices within the network to provide visibility into applications that are not recognized by traditional application identification techniques. By using telemetry data from registered endpoints, Synchronized App Control can analyze behaviors and classify applications, even those that are not previously known, ensuring better control and security management.

This feature enhances security as it continuously assesses the applications in real-time, allowing administrators to make informed decisions about traffic flows based on security policies. It effectively handles the challenges posed by constantly evolving applications and the prevalence of unknown or custom applications in modern IT environments.

Other features listed have different functionalities; for instance, Deep Packet Inspection primarily analyzes packet data to understand traffic flows but may not focus specifically on application identification without additional context. The Web Application Firewall focuses on protecting web applications from attacks rather than identifying unknown applications across the network. The Intrusion Prevention System helps to identify and block potential threats and intrusions but is not specifically tailored for application identification.