正确答案: B

阻止路由环路

题目：路由器上“水平分割”的功能是：()

解析：B

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举一反三的答案和解析：

[单选题]On the topic of VLSM, which one of the following statements best describes the concept of the route aggregation?

Combining routes to multiple networks into one supernet.

解析：解析：Explanation:

[单选题]OSI第二层数据封装完成后的名称是：()

帧

[单选题]On a half-duplex Ethernet LAN, two hosts attempt to send data simultaneously, resulting in a collision. Following this collision, what will the hosts do? (Select all valid answers)

The hosts will attempt to resume transmission after a time delay has expired.

解析：C 解析：Explanation:

[单选题]帧中继环境中，在物理端口上，建立子接口的命令是（）

interface

[单选题]以下（）LSA类型是ASBR来宣告外部路由信息的。（）

类型5

[单选题]为了查看路由器的E0端口上，是否挂接了访问权限表，应该使用的命令是（）

show interface e0

[单选题]You need to decide on which trunking method to implement in the Ezonexam network. What is a characteristic of ISL and 802.1q frame. tagging in a switched LAN environment?

They provide inter-switch VLAN communication.

解析：解析：Explanation: A trunk link is the other type of Layer 2 port supported on Cisco switches. When a trunk port is configured, it begins marking frames as they exit the port to indicate which VLAN each frame. is associated with.

[单选题]You are given a PC, a router, and a cable. Select the correct combination that will allow you to log into router VE1 locally using a terminal emulation program such as HyperTerminal.

Connect the PC's COM port to the router's console port using a rollover cable.

解析：B 解析：Explanation: