Question: What is a primary reason for the 5G system to support QoS (Quality of Service) monitoring/assurance for services like URLLC and V2X, despite network efforts to guarantee QoS?
Option 1: To enhance overall network capacity and reduce congestion.
Option 2: Due to the inherent reliability of wireless communication systems in distributed applications.
Option 3: For billing purposes, to accurately charge for service quality.
Option 4: Because network conditions (e.g., interference) can prevent guaranteed QoS, necessitating timely notifications to applications/app servers.
Explanation: The correct answer is Option 4 because it directly addresses the challenge posed by unpredictable network conditions (like interference in a radio cell) that can compromise the guaranteed QoS for latency-sensitive services. This aligns with the need for QoS monitoring/assurance to promptly notify applications or servers when such shortfalls occur, ensuring they can adapt or initiate countermeasures.