Question: What is the primary purpose of the Nudsf_Timer_Stop service operation in the 5G System (5GS) architecture?
Option 1: To start a new timer in the UDSF.
Option 2: To stop existing timer(s) in the UDSF as requested by an NF service consumer.
Option 3: To modify the duration of an ongoing timer in the UDSF.
Option 4: To retrieve the current status of all timers in the UDSF.
Explanation: The Nudsf_Timer_Stop service operation is specifically designed to allow an NF service consumer to stop one or more existing timers in the User Data Storage Function (UDSF). This operation takes the Timer Identity/Identities as required inputs and returns a Result as its primary output, indicating whether the timer(s) were successfully stopped.