Which QoS mechanism uses classification and marking to determine and indicate the priority of a packet?
A) IntServ
B) PriServ
C) TurServ
D) DiffServ
D
Explanation: There are three primary QoS mechanisms: best effort (Internet), integrated services (IntServ), and differentiated services (DiffServ). DiffServ uses a classification engine to figure out how a packet should be marked; this marking then affects the way the packet is treated going through the network.
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