Question: What action does a User Equipment (UE) take with regards to previous incomplete registrations when initiating a new registration procedure for IP-based services in a 3GPP network?
Option 1: The UE retains all data from previous incomplete registrations to merge with the new attempt.
Option 2: The UE selectively keeps TLS connections from previous attempts to expedite the new registration.
Option 3: The UE temporarily suspends previous incomplete registrations, resuming them after the new procedure completes.
Option 4: The UE removes all data relating to any previous incomplete registrations, including established TLS connections and sessions.
Explanation: This is correct because a UE must ensure it's only involved in one registration procedure at a time. To maintain integrity and prevent conflicts, the UE must clear any remnants of previous incomplete registrations before proceeding with a new registration attempt, ensuring a clean start for each new procedure.