Question: What is the primary objective of the MME Configuration Update procedure in the context of E-UTRAN's S1 interface?
Option 1: To modify existing User Equipment (UE) contexts for enhanced service delivery.
Option 2: To establish a new S1 interface connection between eNB and MME for initial setup.
Option 3: To terminate outdated UE sessions for resource reallocation.
Option 4: To update application-level configuration data for interoperability between eNB and MME.
Explanation: The correct answer is Option 4 because the MME Configuration Update procedure is specifically designed to ensure seamless interoperability between the Evolved Node B (eNB) and the Mobility Management Entity (MME) on the S1 interface. This is achieved by updating the necessary application-level configuration data, without impacting existing User Equipment (UE)-related contexts, thereby maintaining uninterrupted service delivery.