QoS for Network Traffic Management refers to the use of Quality of Service techniques to control, prioritize, and optimize data traffic across a network. It ensures that critical applications such as voice, video, cloud services, and business applications receive the required bandwidth and priority. QoS uses methods like traffic classification, marking, queuing, shaping, policing, and congestion management to regulate traffic flow efficiently. These techniques help reduce latency, jitter, packet loss, and network congestion during high traffic conditions. Network administrators use QoS to maintain stable performance and improve overall user experience. QoS for Network Traffic Management is essential for enterprise, cloud, and service provider networks that require reliable and efficient communication.