QoS (Quality of Service)
In the field of computer networking and other packet-switched telecommunication networks, the term Quality of Service (QoS) refers to resource reservation or priorization control mechanisms. Quality of service is the ability to provide different priority to different applications, users, or data flows, or to guarantee a certain level of performance to a data flow. For example, a required bit rate, delay, jitter, packet dropping probability and/or bit error rate may be guaranteed.
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