Regarding the difference between GTS, LR and CAR, which description is correct?
A . When performing packet flow control, the LR discards packets that exceed the traffic limit.
B . When performing packet flow control, the CAR discards packets that exceed the traffic limit.
C . When performing packet flow control, the LR can not only cache the packets exceeding the traffic limit, but also enable the packets to enter the QoS queue for processing.
D . When performing packet flow control, the CTs cache the packets exceeding the traffic limit in the GTS queue.
Answer: A