Which two models are the models of DiffServ-Aware Traffic Engineering? (Choose two)
A.
Policy-based Model
B.
Class based Model
C.
Russian Doll Model
D.
Global Tunnel Model
E.
Maximum Allocation Model
Explanation:
Therefore in practice, a Network Administrator might prefer to use:
•the Maximum Allocation Model when s/he needs to ensure isolation across all Class Types
without having to use pre-emption, and s/he can afford to risk some QoS degradation of Class
Types other than the Premium Class.
•the Russian Dolls Model when s/he needs to prevent QoS degradation of all Class Types and can
impose preemption.