Question: What is the correct format for constructing a V2X Control Function Fully Qualified Domain Name (FQDN) to uniquely identify a PLMN, given an MCC of 123 and an MNC of 45?
Option 1: v2xcontrolfunction.epc.mnc045.mcc123.3gpp.io
Option 2: v2xcontrolfunction.epc.mnc045.mcc123.3gppnetwork.org
Option 3: v2xcontrolfunction.epc.mcc123.mnc045.3gppnetwork.net
Option 4: v2xcontrolfunction.epc.mnc045.mcc123.3gppnetwork.org
Explanation: The correct construction of a V2X Control Function FQDN, as per the specifications, requires the format to be "v2xcontrolfunction.epc.mnc<MNC>.mcc<MCC>.3gppnetwork.org" where <MNC> and <MCC> are 3-digit codes. For an MNC of 45 (which is less than 3 digits significant in this context but specified as a 2-digit example, thus implying it should be padded to 3 digits as '045' for consistency with the instruction), and an MCC of 123, the correct FQDN must end with ".3gppnetwork.org" and correctly place the MNC and MCC values. **Option 4** accurately reflects this format, ensuring unique PLMN identification and inter-PLMN DNS translation compatibility.