1. [单选题]路由器上端口fa0/0,其最大传输速率是（）Mbit/s
A. 128
B. 10
C. 100
D. 1000
2. [单选题]After connecting a PC to an available port on a switch, you find that the PC can not access any of the resources on the LAN. No other PC's connected to the switch appear to be having any issues. What is the most likely cause for this problem?
A. The router lacks a routing table entry for the new host
B. The host switch port is assigned to the incorrect VLAN
C. The host MAC address is incorrectly configured
D. A STP instance for the new host has not been initialized
E. The switch does not have the MAC address hard coded in the CAM table.
3. [单选题]“InsideGlobal”地址在NAT配置里表示的是什么()
A. 这个概括地址是所有的内部子网地址
B. 一个注册的地址是表示一个内部的主机到外部网络
C. 一个全局唯一，私有的ip地址被分配给一个内网的主机
D. 路由器的MAC地址被用做内部主机去连接这个互联网
