题目内容

You are deploying two core switches，one in each building，50 km away from each other. The cross-connection between them will be a Layer 2 2-gigabit EtherChannel with an 802.1Q trunk. You configured it correctly but the link does not come up. The port is in the "admin up" state，and the line protocol is in the "down" state. The fiber link is OK. What would be the most likely reason for the link not to come up？（）

A. The switches are not the same model.
B. You are not using the correct SF
C. You are not using correct optical media converters.
D. Configuration should be modified， because the distance is longer.

查看答案

搜索结果不匹配？点我反馈

更多问题

以下工作于OSI参考模型数据链路层的设备是（）。

A. 广域网交换机
B. 路由器
C. 中继器
D. 集线器

煤炭浮沉试验过程中，浮沉试验顺序一般从低密度逐级向高密度进行。

A. 正确
B. 错误

运动训练方法的作用是什么？

MSRN号码的作用有：1）（）；2）（）。