Question: What is a key function of a RADIUS/Diameter Translation Agent in a 3GPP AAA Proxy, aside from protocol conversion, when interacting with a WLAN Access Network (AN)?
Option 1: Encrypting all communications using IPSec exclusively
Option 2: Advertising the client's protocol type (RADIUS or Diameter) to the 3GPP AAA Server
Option 3: Managing QoS for both RADIUS and Diameter requests
Option 4: Load balancing between multiple 3GPP AAA Servers
Explanation: Correct because one of its key functions is to inform the 3GPP AAA Server about whether the client in the WLAN Access Network (AN) uses RADIUS or Diameter, ensuring seamless interworking by adapting communication based on the client's protocol.