Question: What constitutes a Shared Network Area Identifier (SNA-Id) in terms of its components?
Option 1: PLMN-Id followed by the Shared Network Area Code (SNAC)
Option 2: Location Area Code (LAC) combined with Cell Identity (CI)
Option 3: UE's IMSI paired with the serving cell's RNC ID
Option 4: A standalone, operator-defined code without any PLMN association
Explanation: The correct composition of a Shared Network Area Identifier (SNA-Id) is crucial for identifying areas within a shared network for access rights management. An SNA-Id is specifically formed by concatenating the Public Land Mobile Network Identity (PLMN-Id) with the Shared Network Area Code (SNAC), defined by the network operator, ensuring uniqueness and facilitating efficient management of shared network resources.