单选题What occurs on a Frame Relay network when the CIR is exceeded?（）AAll TCP traffic is marked discard eligibleBAll UDP traffic is marked discard eligible and a BECN is sentCAll TCP traffic is marked discard eligible and a BECN is sentDAll traffic exceeding the CIR is marked discard eligible
单选题
What occurs on a Frame Relay network when the CIR is exceeded?（）
A
All TCP traffic is marked discard eligible
B
All UDP traffic is marked discard eligible and a BECN is sent
C
All TCP traffic is marked discard eligible and a BECN is sent
D
All traffic exceeding the CIR is marked discard eligible
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