[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]在OSPF的DR/BDR选举过程中，在路由器有相同的接口优先级情况下，什么用于确定DR或BDR（）

正确答案 ：D

路由器ID

[单选题]扩展ACL和标准ACL的区别（）。

正确答案 ：B

扩展的ACL核查数据包的源地址和目标地址和端口号

[单选题]You have just purchased a brand new router and wish to have the router prompt you through the initial configuration commands. Which router mode does this describe?

正确答案 ：B

SETUP mode

解析：解析：Explanation:

[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

[多选题]Which of the following steps are necessary in order to add a new VLAN to the Ezonexam switched network? (Select all that apply)

正确答案 ：ABD

Create the VLAN.

Name the VLAN.

Add the desired ports to the new VLAN.

解析：解析：Explanation:

[单选题]Given that you have a class B IP address network range, which of the subnet masks below will allow for 100 subnets with 500 usable host addresses per subnet?

正确答案 ：C

255.255.254.0

解析：解析：Explanation:

[多选题]Why is full-duplex Ethernet superior to its single-duplex counterpart? (Select two answer choices.)

正确答案 ：BD

It operates without collisions

It provides faster data transfer

解析：解析：Explanation:

[单选题]下列关于路由器和交换机的描述中，错误的是（）

正确答案 ：D

交换机可以转发广播

[单选题]查看E0端口配置信息的命令是：()

正确答案 ：D

show interfacee0

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