Question: What is the primary purpose of the EP_X2U IOC in a 5G Network Resource Model (NRM)?
Option 1: To represent the local end-point of a logical link supporting the X2 user plane (X2-U) interface, specifically used in E-UTRA-NR Dual Connectivity (EN-DC).
Option 2: To manage the control plane signaling for S1 and X2 interfaces in a standalone 5G network.
Option 3: To define attributes for User Equipment (UE) capability exchange during initial attachment.
Option 4: To orchestrate the handover process between LTE and 5G NR cells.
Explanation: The EP_X2U IOC represents a logical link's local end-point for the X2-U interface, utilized in EN-DC scenarios. This is crucial for managing resources in 5G networks, especially in dual connectivity setups where seamless integration between different radio access technologies (RATs) is key.