Which protocol is typically required for the FortiSIEM GUI discovery process?

In the context of the FortiSIEM GUI discovery process, the SNMP (Simple Network Management Protocol) is the typically required protocol because it facilitates the collection of management information from network devices. SNMP allows FortiSIEM to gather critical data about the devices within a network, such as their status, configuration, and statistical information. This interaction is crucial for device discovery and monitoring, as it provides real-time updates and insights about the network's health and performance.

While other protocols like WMI (Windows Management Instrumentation) may be used for Windows-specific systems, SNMP serves as a broader standard that works across various network devices, making it essential for comprehensive network monitoring. Syslog is primarily used for logging messages and not for device discovery, and Telnet provides remote command-line access but lacks the appropriate structure for the automated discovery process. Thus, SNMP stands out as the correct choice in this scenario.