Question: What is the primary purpose of a Data Network Name (DNN) in the 5G System?
Option 1: To identify a specific User Equipment (UE) device.
Option 2: To authenticate a subscriber's identity.
Option 3: To select network functions and determine policies for a PDU Session.
Option 4: To prioritize traffic for a specific application.
Explanation: A DNN is used to select a Session Management Function (SMF) and User Plane Function (UPF) for a Protocol Data Unit (PDU) Session, as well as to determine policies to apply to the PDU Session. This highlights the role of DNN in managing network resources and applying policies in a 5G System.