Question: What is the primary purpose of the Target To Source Transparent Container Information Element (IE) in the context of handover procedures within the Evolved Universal Terrestrial Radio Access Network (E-UTRAN)?
Option 1: To encrypt sensitive user data transmitted between the EPC and RAN nodes.
Option 2: To transparently pass radio-related information from the handover target RAN node to the handover source RAN node through the Evolved Packet Core (EPC).
Option 3: To manage session continuity for voice calls during inter-RAT handovers.
Option 4: To authenticate User Equipment (UE) identity across different RAN nodes.
Explanation: The correct answer highlights the key function of the Target To Source Transparent Container IE, which is to facilitate the seamless exchange of radio-related information between the target and source RAN nodes via the EPC during handover processes, ensuring continuity and optimizing the handover process without requiring the EPC to interpret the contents, thus maintaining transparency.