Question: Which of the following accurately describes the purpose and direction of the RESET REQUEST message in E-UTRAN?
Option 1: To establish a new X2 interface connection, sent only from eNB to en-gNB.
Option 2: To request resetting the X2 interface between two eNBs or between an eNB and an en-gNB, with bidirectional capability.
Option 3: To terminate an existing S1 interface connection, sent exclusively from en-gNB to eNB.
Option 4: To reset the X2 interface specifically for handover procedures, sent from eNB to eNB or from eNB to en-gNB but not in the reverse direction.
Explanation: The correct answer is Option 2 because it accurately reflects the purpose (resetting the X2 interface) and the directional capability (between two eNBs or between an eNB and an en-gNB, implying bidirectional communication) as described in the context of E-UTRAN's X2 Application Protocol.