Question: When a User Equipment (UE) is roaming in a Visited Public Land Mobile Network (VPLMN), which of the following types of Packet Oriented Services Barring can be applied based on information stored in the Access and Mobility Management Function (AMF)/Session Management Function (SMF)?
Option 1: Barring of all Packet Oriented Services, regardless of location
Option 2: Barring only for access points within the Visited Public Land Mobile Network (VPLMN)
Option 3: Barring only for access points within the Home Public Land Mobile Network (HPLMN) but not in the VPLMN
Option 4: No Packet Oriented Services can be barred when roaming
Explanation: According to the stored information in AMF/SMF, one of the options for Operator Determined Barring (ODB) for Packet Oriented Services is indeed 'Barring of all Packet Oriented Services'. This implies that regardless of whether the UE is roaming or at home, all packet-oriented services can be barred if this setting is applied. The other specific scenarios (Options 2 and 3) are also valid types of barring based on location, but they do not encompass the broader scope of 'all Packet Oriented Services' as described for Option 1. Option 4 is incorrect because some form of barring can indeed be applied even when roaming.