Question: What is a key requirement for using a Functional Alias in Mission Critical (MC) service communications, in addition to its own identification scheme?
Option 1: Association with a specific IP address
Option 2: Activation of multiple MC services simultaneously
Option 3: Association with the MC Service ID for security context
Option 4: Utilization of a unique port number for each alias
Explanation: In Mission Critical service communications, using a Functional Alias (which provides role-based user identification) necessitates an association with the MC Service ID. This is crucial because the MC Service ID provides the necessary security context for the communication, ensuring authenticated and authorized exchange of information. This requirement highlights the importance of balancing operational flexibility (offered by functional aliases) with robust security measures in critical communications environments.