[多选题]Which three statements are true about the operation of a full-duplex Ethernet network, which is being used in the Ezonexam LAN? (Choose three)
正确答案 :BCE
The host network card and the switch port must be capable of operating in full-duplex mode.
There are no collisions in full-duplex mode.
A dedicated switch port is required for each full-duplex node.
解析:解析:Explanation:
[单选题]关于PPP和HDLC的说法中,错误的是()
正确答案 :D
在配置ISDN时,广域网协议不能封装成PPP,但可以封装成HDLC
[多选题]交换机的三大功能为()
正确答案 :ABC
地址学习
转发过滤
消除回路
解析:ABC
[单选题]在路由器上,命令show access-list的功能是()
正确答案 :A
显示访问控制列表内容
[单选题]工作在OSI第三层的设备是:()
正确答案 :B
路由器
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