QoS (Quality of Service) is a set of technologies and techniques used to manage network resources and ensure the efficient and predictable delivery of data across a network.
For your reference, here are more details about QoS:
1. The main goal of QoS is to prioritize certain types of network traffic over others to ensure that critical applications receive the necessary network resources to function properly;
2. It is crucial for networks where different types of data traffic have varying requirements for bandwidth, latency, jitter, and packet loss, especially applications like VoIP (Voice over IP), video conferencing, and online gaming.