下面对Cisco2621路由器和Cisco2501路由器描述中，错误的是（）

【名词&注释】

可扩展性(scalability)、以太网(ethernet)、模块化路由器(module router)

[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

查看答案&解析查看所有试题

学习资料：

[单选题]哪一个命令可以设置路由器特权用户的“明文密码”（）

A. enable password
B. password
C. enable secret
D. secret

[单选题]A receiving host has failed to receive all of the segments that it should acknowledge.What can the host do to improve the reliability of this communication session?

A. Start a new session using UDP
B. Obtain a new IP address from the DHCP server
C. Use a different source port for the session
D. Decrease the sequence number
E. Decrease the window size

[单选题]A Ezonexam technician is troubleshooting connectivity problems between two routers that are directly connected through the serial line. The technician notices that the serial line is up but cannot see any neighbors displayed in the output of the show cdp neighbors command.In which OSI layer is the problem most likely occurring?

A. Physical
B. Data link
C. Network layer
D. Transport layer
E. Application layer

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