多项选择题
A. Tunnel brokers automatically provide configuration parameters to peer routers.
B. IPv6 enabling a node looks automatic to the end user.
C. Tunnel information is sent via IPv4.
D. Tunnel brokers make it simpler for nontechnical users to deploy manual tunnels.
多项选择题 Which three of these items are IPv6 transition mechanisms? （）(Choose three.)
单项选择题 Which configuration will enable OSPF for IPv6 on FastEthernet 0/0/0?（）
单项选择题 In a high-availability network, which command, when placed on ports that have connected end stations, will allow you to prevent delays in service for end stations by placing a port in blocking mode?（）