In the context of Fortinet devices, what must a user provide for identity authentication?

For identity authentication within Fortinet devices, providing valid credentials such as a username and password is essential. This process is a fundamental aspect of access control, ensuring that only authorized users can gain entry to the network and its resources. By requiring these credentials, Fortinet devices verify the user's identity against stored user profiles within their directory services.

Utilizing username and password combinations also facilitates multi-factor authentication, which can add additional layers of security. This is a standard practice in network security, as it helps prevent unauthorized access and potential breaches.

The other options, while they may relate to network management or security in different contexts, do not serve as the primary means of authenticating a user's identity. Network performance metrics and activity logs provide insights into how the network operates and user behavior, but they do not directly correlate to verifying identity. Biometric scans, although they offer a modern approach to authentication, are not a standard requirement for identity verification in Fortinet systems, making valid credentials the most accurate and universally accepted method in this context.