Question: Which two functional entities support the Configuration Management Client in the Signalling Control Plane for Mission Critical Services?
Option 1: Diameter Client and SIP Agent
Option 2: Signalling User Agent and HTTP Client
Option 3: Policy Charging Rules Function (PCRF) and Serving Gateway (SGW)
Option 4: Mobility Management Entity (MME) and Home Subscriber Server (HSS)
Explanation: In the context of Mission Critical Services, efficient configuration management is crucial. The correct answer, Signalling User Agent and HTTP Client, highlights the specific entities that support the Configuration Management Client. This is because signalling protocols are essential for transaction management, and HTTP client functionality enables communication with the configuration management server for data exchange, aligning with common practices in telecom network architecture for such services. Options 1, 3, and 4 refer to entities that, while relevant in broader telecom contexts, are not directly implicated in supporting the Configuration Management Client's specific functional needs as described.