Question: Which two functional entities support the Functional Alias Management Server in a Mission Critical Services architecture?
Option 1: MME (Mobility Management Entity) and SGW (Serving and Packet Data Network Gateway)
Option 2: SIP AS (Session Initiation Protocol Application Server) and HTTP Server
Option 3: HSS (Home Subscriber Server) and PGW (Packet Data Network Gateway)
Option 4: eNodeB and S1AP (S1 Application Protocol) Server
Explanation: In the context of Mission Critical Services, the Functional Alias Management Server relies on specific entities for its operation. Only SIP AS and HTTP Server are correctly identified as supporting entities, facilitating configuration management of functional aliases within the signalling control plane.