UC知道CCNA 的一个考试题
来源：百度知道 编辑：UC知道 时间：2024/06/24 10:30:57
The LAN needs are expanding （扩大）at the Testking corporate office, which is quickly（迅速的）
growing. You are instructed to enlarge the area covered by a single LAN segment on
the TestKing network.
Which of the following are layer 1 devices that you can use? (Choose all that apply.)
A. A switch
B. A router
C. A network adapter card
D. A hub
E. A repeater
growing. You are instructed to enlarge the area covered by a single LAN segment on
the TestKing network.
Which of the following are layer 1 devices that you can use? (Choose all that apply.)
A. A switch
B. A router
C. A network adapter card
D. A hub
E. A repeater
先把题目看懂
其实主要是考你一层的设备
A:交换机 普通交换机是2层设备
B：路由器 3层设备
C：网卡工作在数据链路层中的MAC子层上因此2层，当然也有人认为工作在物理1层上。就我观点是2层
D：集线器 1层设备
E：中继器 1层设备
选择DE