Question: What is the primary purpose of the GTP-U-CONTROL-RX-SETUP.confirm primitive in GPRS Tunnelling Protocol (GTP)?
Option 1: To acknowledge resource setup requests and report potential failures with reasons.
Option 2: To initiate the release of resources associated with a specific tunnel identified by TEID.
Option 3: To establish new tunnels for User Equipment (UE) handovers between different Radio Access Networks (RAN).
Option 4: To periodically monitor and update the status of existing GTP tunnels.
Explanation: The correct answer is Option 1 because the GTP-U-CONTROL-RX-SETUP.confirm primitive acknowledges resource setup requests and can deliver information on setup failures and their reasons. Options 2, 3, and 4 describe actions not associated with this specific primitive, such as resource release, tunnel establishment for handovers, and periodic status updates.