Question: What is the correct format for constructing a 5GS Tracking Area Identity (TAI) FQDN, as per the 3GPP specifications?
Option 1: tac-lb<TAC-low-byte>.tac-mb<TAC-middle-byte>.tac-hb<TAC-high-byte>.5gstac.5gc.mnc<MNC>.mcc<MCC>.3gppnetwork.org
Option 2: tac-hb<TAC-high-byte>.tac-mb<TAC-middle-byte>.tac-lb<TAC-low-byte>.5gstac.5gc.mnc<MNC>.mcc<MCC>.3gppnetwork.org
Option 3: mnc<MNC>.mcc<MCC>.tac-hb<TAC-high-byte>.tac-mb<TAC-middle-byte>.tac-lb<TAC-low-byte>.5gstac.5gc.3gppnetwork.org
Option 4: mcc<MCC>.mnc<MNC>.tac-lb<TAC-low-byte>.tac-mb<TAC-middle-byte>.tac-hb<TAC-high-byte>.5gstac.5gc.3gppnetwork.org
Explanation: The correct format for constructing a 5GS Tracking Area Identity (TAI) FQDN is specified in the 3GPP TS 23.003 document, which requires the TAI to be encoded as "tac-lb<TAC-low-byte>.tac-mb<TAC-middle-byte>.tac-hb<TAC-high-byte>.5gstac.5gc.mnc<MNC>.mcc<MCC>.3gppnetwork.org". This format ensures that the TAC, MCC, and MNC are correctly encoded and represented in the FQDN.