Regarding the Radius authentication process, refer to the following steps: 1. Network device Radius client (network access server) receives the user name and password, and sends an authentication…

Regarding the Radius authentication process, refer to the following steps: 1. Network device Radius client (network access server) receives the user name and password, and sends an authentication request to the Radius server. 2. When a user logs into the USG access servers and other network devices, the user name and password will be sent to the network access server. 3. After the Radius server receives a valid request to complete the request and the required user authorization information is sent back to the client. Which of the following is a correct sequence?