When managing multiple ADOMs, which device type must include firmware version upon assignment?

When managing multiple Administrative Domains (ADOMs) in FortiAnalyzer, the correct answer is that the device type requiring the firmware version upon assignment is the FortiGate. This is because FortiGate devices serve as the primary security appliances in the Fortinet ecosystem, and different firmware versions can introduce new features, enhancements, or changes in functionality. Therefore, specifying the firmware version is essential for ensuring compatibility and optimal operation when these devices are managed through FortiAnalyzer.

In contrast, while other device types like FortiAP, FortiProxy, and FortiSwitch may also require certain configurations, they do not necessitate the firmware version in the same manner when assigned to an ADOM. The focus on FortiGate is particularly significant due to its central role in the overall network security architecture and its varied operational implications based on the firmware version in use.