[多选题]Two stations on the Ezonexam LAN transmit at the same time, resulting in a collision. What happens when a collision occurs on the network? (Choose all that apply)
正确答案 :BDE
A jam signal informs all devices that a collision occurred.
The devices that are involved in the collision stops transmitting for a short time.
The collision invokes a random back-off algorithm.
解析:解析:Explanation:
[单选题]路由器当前的模式为“端口模式”,要退回到“特权模式”,应该使用的快捷键为()
正确答案 :B
ctrl+z
[单选题]Assuming you build networks to exact specifications, what is the recommended maximum length a 10BaseT cable can be before it has to be segmented or repeated?
正确答案 :A
100 meters
解析:解析:Explanation:
[单选题]在OSI七层模型中,介质工作在哪一层()
正确答案 :C
物理层
[单选题]介质100BaseT的最大传输距离是:()
正确答案 :B
100m
[单选题]在OSPF的完全存根区域中,使用以下哪种LSAType报文或其它方式与区域间通信:()
正确答案 :D
默认路由:0.0.0.0
[单选题]对交换机的描述,正确的是()
正确答案 :B
单广播域,多冲突域的设备
[单选题]命令ip nat pool aaa 192.1.1.2 192.1.1.10 netmask 255.255.255.0的作用是()
正确答案 :B
定义地址池
[单选题]路由器下,由一般用户模式进入特权用户模式的命令是:()
正确答案 :A
enable
[单选题]为了阻止交换机环路,交换机上所采用的技术为()
正确答案 :B
生成树协议
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