[单选题]Which command on router EzonexamA will assign the last usable IP address from the 192.168.32.128/28 subnetwork to a router interface?

正确答案 ：A

EzonexamA(config-if) ip address 192.168.32.142 255.255.255.240

解析：A 解析：Explanation:

[多选题]网络中经常使用DDN服务，请选出DDN的优点（）

正确答案 ：ADE

传输质量高

使用虚电路

专用线路

解析：ADE

[单选题]要把交换机的配置文件保存到tftp服务器，应使用的命令为（）

正确答案 ：B

copy running-configt ftp

[多选题]With regard to Ethernet media access methods, which of the following are true?(Choose all that apply.)

正确答案 ：BC

A device listens and waits until the media is not busy before transmitting.

All devices on an Ethernet segment see data that passes on the network medium.

解析：解析：Explanation:

[单选题]“InsideGlobal”地址在NAT配置里表示的是什么()

正确答案 ：B

一个注册的地址是表示一个内部的主机到外部网络

[多选题]在路由器上，可以使用的命令有：()

正确答案 ：ABC

ping

show interfaces

show ip route

解析：ABC

[多选题]What are two characteristics of "store and forward" switching? (Select two answer choices)

正确答案 ：BC

The switch receives the complete frame. before beginning to forward it.

Latency through the switch varies with frame. length.

解析：解析：Explanation:

[多选题]When you compare the differences between half-duplex and full-duplex Ethernet, which of the following characteristics are exclusive to half-duplex? (Select two answer choices)

正确答案 ：AD

Half-duplex Ethernet operates in a shared collision domain.

Half-duplex Ethernet has lower effective throughput.

解析：解析：Explanation:

[单选题]TELNET工作在OSI哪一层（）

正确答案 ：D

应用层

[单选题]IP扩展访问列表的数字标示范围是多少（）。

正确答案 ：C

100-199

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