What role does FortiOS serve in Fortinet's product line?

FortiOS serves as a comprehensive operating system and security feature manager across Fortinet's product line. By integrating advanced security features, it ensures that Fortinet devices, such as firewalls and security appliances, operate efficiently while providing robust protection against various cyber threats.

This role is crucial as it unifies multiple security functions, such as intrusion prevention, VPN support, antivirus, web filtering, and application control, all within a single platform. This integration allows for streamlined operations and enhanced security posture, making it easier for administrators to manage and enforce security policies.

In contrast, the other options do not accurately encapsulate the scope of FortiOS. While it is true that FortiOS runs on a plethora of Fortinet devices, the core function extends beyond mere execution to encompass security management. User interaction training is a separate endeavor not related to the core functionality of FortiOS. Lastly, power management is a hardware-level function and not associated with the operating system responsibilities of FortiOS, which focuses on security management and network operations.