多项选择题
Which of the following host addresses are members of networks that can be routed across the public Internet?（）
A.10.172.13.65 B.172.16.223.125 C.172.64.12.29 D.192.168.23.252 E.198.234.12.95 F.212.193.48.254
单项选择题 Which of the following is true concerning Frame Relay multipoint subinterfaces?（）
单项选择题 Which command is required to apply an access list on a virtual terminal line of a router?（）
单项选择题 Which switch is the root bridge for VLAN 1?（）
