Question: What is the primary function of the SCTP layer in the NG control plane protocol stack?
Option 1: To manage UE context
Option 2: To provide point-to-point transmission of signalling PDUs
Option 3: To guarantee delivery of application layer messages
Option 4: To perform configuration transfer
Explanation: The SCTP layer is responsible for providing guaranteed delivery of application layer messages, ensuring reliable transport of signalling messages between the NG-RAN node and the AMF. This is critical in telecom networks to prevent message loss or corruption, which could impact network performance and user experience.