Question: What is the primary purpose of the Nnef_BDTPNegotiation_Create service operation in the 5G System (5GS)?
Option 1: To request a dedicated bearer for a specific UE.
Option 2: To negotiate a background data transfer policy with the network.
Option 3: To retrieve the current network area information.
Option 4: To create a new ASP Identifier for an application server.
Explanation: The Nnef_BDTPNegotiation_Create service operation is used by the consumer to request a background data transfer policy from the network. This involves providing inputs such as the ASP Identifier, Volume per UE, Number of UEs, and Desired time window, and receiving outputs like the Background Data Transfer Reference ID and one or more background data transfer policies.