Question: What is the primary purpose of using AAL5 virtual circuits in the UTRAN Iu interface?
Option 1: To transport IP packets across the Iu interface towards the broadcast domain.
Option 2: Exclusively for signaling in the control plane to manage user equipment.
Option 3: To establish a single, dedicated Virtual Circuit (VC) for all IP traffic across the network.
Option 4: For transporting voice packets over the ATM network.
Explanation: AAL5 is utilized in the UTRAN Iu interface primarily to efficiently transport IP packets, ensuring data integrity and reliability across the broadcast domain.