1. [单选题]下面对Cisco2621路由器和Cisco2501路由器描述中，错误的是（）
A. Cisco2621路由器的可扩展性优于Cisco2501路由器
B. Cisco2621是模块化路由器
C. Cisco2501上提供一个100Mbit/s的快速以太网端口
D. Cisco2501是固定端口的路由器
2. [单选题]Which type of cable should be used to make a connection between the Fa0/0 port on a router and the Fa0/0 port switch?
A. Rollover cable
B. Console cable
C. Crossover cable
D. Straight-through cable
E. Serial cable
