单项选择题
A. Router R1 will only establish full adjacency with the DR and BDR on broadcast multi- access networks.
B. Router R2 has been elected as a DR for the broadcast multiaccess network in OSPF area 1.
C. Routers R1 and R2 are configured as stub routers for OSPF area 1 and OSPF area 2.
D. Router R1 and R2 are configured for a virtual link between OSPF area 1 and OSPF area 2.
E. The Hello parameters on routers R1 and R2 do not m atch.
单项选择题 When troubleshooting an EIGRP connectivity problem, you notice that two connected EIGRP routers are not becoming EIGRP neighbors. A ping between the two routers was successful.What is the next thing that should be checked?（）
单项选择题 Refer to the exhibit. Routing updates for the 192.168.1.0 network are being received from all three neighbors. Which statement is correct regarding the result of the con figuration shown? （）
单项选择题 Refer to the e xhibit. It is desired to set up a BGP neighbor relationship between routers R1 and R4. BGP packets between them could travel through R2 or R3. What is the simplest configuration that will allow for failover?（）
