Question: What is the primary purpose of the WLAN-Identifier AVP in the context of Trusted WLANs?
Option 1: To identify the transport access technology serving the User Equipment (UE)
Option 2: To convey the type and value of an IEEE 802.11 identifier for a Trusted WLAN
Option 3: To specify the protocol used for media transfer between the UE and the network
Option 4: To manage session establishment for roaming users
Explanation: The correct answer highlights the main function of the WLAN-Identifier AVP, which is to carry the type (e.g., SSID, HESSID) and value of an IEEE 802.11 identifier, crucial for identifying and authenticating Trusted WLANs. Option 1 relates to Transport-Access-Type AVP, while Options 3 and 4 pertain to different network aspects.