正确答案: DE

A hub A repeater

题目：The LAN needs are expanding at the Ezonexam corporate office, which is quickly growing. You are instructed to enlarge the area covered by a single LAN segment on the Ezonexam network.Which of the following are layer 1 devices that you can use? (Choose all that apply.)

解析：解析：Explanation:

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举一反三的答案和解析：

[单选题]A Ezonexam PC has the IP address 172.16.209.10 /22. What is the subnet of this address?

172.16.208.0

解析：解析：Explanation:

[单选题]What kind of cable should be used to establish a trunked line between two Catalyst switches?

A cross-over cable

解析：解析：Explanation: A crossover cable is used to connect two of the same device types, or devices from the same OSI layer.

[单选题]对交换机的描述，正确的是（）

单广播域，多冲突域的设备

[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：（）

enable