多项选择题
A.Some query or reply packets are lost between the routers
B.The neighboring router starts receiving route updates from this router
C.A failure causes traffic on a link between two neighboring routers to flow in only one direction（unidirectional link）
D.The neighboring router stops receiving ACK packets from this router
单项选择题 Refer to the exhibit. EIGRP has been configured on routers R1 and R2. However， R1 does notshow R2 as a neighbor and does not accept routing updates from R2. What could be the cause ofthe problem？（）
单项选择题 Based on the above configuration, which of the following BGP statements would inject the 10.10.0.0/16 prefix into the BGP routing table（）
多项选择题 Study the exhibit below carefully： If the configuration shown below is added to Router1， which three route entries will EIGRPadvertise to neighboring routers？（） router eigrp 10 network 10.0.0.0 eigrp stub