Question: What entity replaces the V-SMF during the deregistration procedure when a UE has established PDU Session(s)?
Option 1: H-SMF
Option 2: I-SMF
Option 3: SMF
Option 4: UPF (PSA)
Explanation: During the deregistration procedure, the V-SMF is replaced with the I-SMF when a UE has established PDU Session(s), as this change affects the handling of ULCL/BP in the data path and the release of local UPF resources.