Question: What two components, as specified by standards, uniquely identify a Public Land Mobile Network (PLMN) when concatenated?
Option 1: Location Area Code (LAC) || Cell Identity (CI)
Option 2: Mobile Country Code (MCC) || Location Area Code (LAC)
Option 3: Mobile Country Code (MCC) || Mobile Network Code (MNC)
Option 4: Temporary Mobile Subscriber Identity (TMSI) || Packet TMSI (P-TMSI)
Explanation: A Public Land Mobile Network (PLMN) is uniquely identified by its PLMN identifier, composed of the Mobile Country Code (MCC), identifying the country, and the Mobile Network Code (MNC), identifying the network within that country. Thus, the correct concatenation for a unique PLMN identification is MCC || MNC.