Which persona configuration feature is used when setting personas in Cisco ISE for a node that will give network access and receive RADIUS requests?

A pxGrid Node is responsible for integrating Cisco ISE with other security products and sharing context-aware information, not for handling RADIUS access requests.

A Monitoring Node (MnT) collects and stores all logging, auditing, and reporting data from other ISE nodes, but does not process network access requests directly.

The Policy Service Node (PSN) persona is responsible for evaluating policies, making access decisions, and serving RADIUS and TACACS+ requests for network access and device administration, directly interacting with network devices.

A Policy Administration Node (PAN) is the central point for all administrative operations, including configuration of policies, system settings, and user management, but it does not directly process network access requests.