Question: What is the primary purpose of the NAS signalling connection established between a UE and the AMF over N1 in the context of connection management?
Option 1: To enable user plane data transfer between the UE and the core network.
Option 2: To facilitate NAS signalling exchange between the UE and the core network.
Option 3: To manage the AN signalling connection between the UE and the AN.
Option 4: To establish a direct connection between the UE and the UPF.
Explanation: The correct answer is Option 2 because, according to the text, the NAS signalling connection is used to enable NAS signalling exchange between the UE and the core network. This highlights the importance of this connection in facilitating communication between the UE and the core network for control plane functions.