What must you do first to configure the RADIUS clients on the NPS server?

To configure the RADIUS clients on the NPS (Network Policy Server), the initial step involves selecting the RADIUS Clients and Servers option. This action is a crucial starting point in the configuration process, as it allows you to designate and manage the specific clients (such as network devices or servers) that will be permitted to communicate with the NPS for authentication and accounting purposes.

By selecting the RADIUS Clients and Servers option, you initiate the setup needed to define clients, assign shared secrets, and specify the respective attributes necessary for secure and efficient communication between the NPS and the clients. This option serves as the gateway to ensuring that only authorized clients can send authentication requests, fostering a secure network environment.

The other options do not directly lead to the configuration of RADIUS clients. While right-clicking on the NPS server or expanding the Policies pane may provide access to useful configuration settings, they do not specifically target the initial setup for RADIUS client configurations. Accessing the Network Policies section, although relevant for defining network access policies, is not where you would begin the RADIUS client setup. Therefore, starting with the RADIUS Clients and Servers option is essential for establishing a well-configured NPS environment.