Question: Which of the following RAN node applications using RIM procedures is transparent to the MME and SGSN?
Option 1: Network Assisted Cell Change between E-UTRAN and GERAN
Option 2: Handover procedure between UTRAN and GERAN
Option 3: SON related information exchange between UTRAN and E-UTRAN
Option 4: Paging procedure between E-UTRAN and UTRAN
Explanation: The RIM procedures are used by RAN node applications, which are transparent to the MME and SGSN. Network Assisted Cell Change is an example of such an application that uses RIM procedures and is described in various specifications including TS 48.018, TS 25.413, and TS 36.413.