多项选择题
A.The IP address of the backup designated router （BDR） is FE80：：205：5FFF：FED3：5808
B.This is the designated router （DR） on the FastEthernet 0/0 link
C.Interface FastEthernet 0/0 was configured with the ipv6 ospf 1 area 1 command
D.OSPF version 2 has been enabled to support IPv6
E.The output was generated by the show ip interface command
单项选择题 Refer to the output. What IOS command produces this output？（）
单项选择题 Refer to the exhibit. Assume that Switch_A is active for the standby group and the standby devicehas only the default HSRP configuration. What conclusion is valid？（）
单项选择题 Network topology exhibit： In this network segment， the two routers on the network are configured for GLBP （Gateway LoadBalancing Protocol）. What can be said about this？（）
