Question: What is the primary outcome of the EN-DC X2 Setup procedure in terms of application level configuration data between eNB and en-gNB over the X2 interface?
Option 1: It merges existing configuration data with new settings.
Option 2: It leaves existing configuration data unchanged.
Option 3: It erases existing configuration data, replacing it with newly received settings.
Option 4: It temporarily suspends all configuration data exchange.
Explanation: The EN-DC X2 Setup procedure completely overwrites any pre-existing application level configuration data in both the eNB and en-gNB with new data, ensuring interoperability by starting with a fresh, synchronized configuration baseline.