Which of the following statements are TRUE regarding the PE device in a QoS enabled network? (Choose two)
A . A device that provides no differentiation between customer traffic flows.
B . A device that classifies and marks customer traffic.
C . A device that uses MPLS EXP bits to differentiate between traffic flows.
D . A device that creates macroflows towards the core from multiple customer sites.
E . A device that passes macroflows while optionally changing QoS markings.
Answer: B,D
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