单项选择题
A. Only the router A loopback interface is parti cipating in the OSPF routing process
B. None of the router A interfaces are participating in the OSPF routing process
C. Router A is using the loopback interface IP address as its OSPF router ID
D. Router A does not have any reachable OSPF neighbors
单项选择题 Refer to the exhibits. You are verifying your OSPF implementation, and it does not seem to be functioning properly. What can you conclude from the exhibit and the show running - configuration command output? （）
单项选择题 Refer to the exhibits. Router B should advertise the network co nnected to the E0/0/0 interface to router A and block all other network advertisements. The IP routing table on router A indicates that it is not receiving this prefix from router B. What is the probable cause of the problem?（）
单项选择题 After implementing EIGRP on your network, you issue the show ip eigrp traffic command on router C. The following output is shown: What information can you determine about this network?（）