Question: What are the two mandatory identifiers that comprise the Network Identifier (NID) for Lawful Interception (LI) in a telecom network?
Option 1: CSP (Communication Service Provider) identifier and Network Element IDentifier (NEID)
Option 2: Mobile Country Code (MCC) and Mobile Network Code (MNC)
Option 3: IP Address of the LI Gateway and LI Mediation Function Identifier
Option 4: International Mobile Subscriber Identity (IMSI) and User Equipment (UE) ID
Explanation: The correct answer is Option 1 because, according to telecom security standards for Lawful Interception, the Network Identifier (NID) must be internationally unique and consists of two parts: CSP identifier, which uniquely identifies the Communication Service Provider, and Network Element IDentifier (NEID), which uniquely identifies the specific network element handling LI operations.