单项选择题
Which statement is true about the internal link between the Routing Engine and the Packet-Forwarding Engine?（）
A.It is only used for exception traffic. B.It is an FE link called fxp2. C.It is rate-limited to avoid DDOS attacks. D.It is only used to send the forwarding-table from the Routing Engine to the Packet-Forwarding Engine.
单项选择题 If the PFE does not have a route to the destination address of a packet, which action will be taken?（）
多项选择题 For which two functions is the Routing Engine responsible?（）
单项选择题 What is the interface connecting the routing engine to the packet forwarding engine called?（）
