单项选择题
A.Host B and the switch need to be in the same subnet.
B.The switch needs and appropriate default gateway assigned.
C.The switch interface connected to the router is down.
D.Host B need to be assigned an IP address in vlan 1.
E.The switch interfaces need the appropriate IP addresses assigned.
多项选择题 Which two of these are characteristics of the 802.1Q protocol?（）
单项选择题 Based on the network shown in the graphic which option contains the potential networking problem and protocol or setting that can to prevent the problem?（）
单项选择题 Which command can be used from a PC to verify the connectivity between hosts that connect through a switch in the same LAN?（）
