[单选题]OSPF的度量值是什么()

正确答案 ：D

链路状态

[单选题]当在一个接口上使用ipaccess-group99in命令时，以下哪条关于所引用访问控制列表的描述是正确的（）

正确答案 ：C

这个列表是编号型标准ACL，检查进入接口的数据包

[单选题]The corporate head office of Ezonexam has a teleconferencing system that uses VOIP (voice over IP) technology. This system uses UDP as the transport for the data transmissions. If these UDP datagrams arrive at their destination out of sequence, what will happen?

正确答案 ：B

UDP will pass the information in the datagrams up to the next OSI layer in the order that they arrive.

解析：解析：Explanation:

[多选题]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.)

正确答案 ：DE

A hub

A repeater

解析：解析：Explanation:

[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:

[单选题]介质工作在OSI的哪一层（）

正确答案 ：A

物理层

[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

[单选题]RIP路由协议认为“网络不可到达”的跳数是：()

正确答案 ：B

16

[单选题]路由器上，清空路由表的命令是（）

正确答案 ：D

clearip route*

[单选题]下列对RIP的配置中，合法的命令是（）

正确答案 ：C

router rip network 10.12.0.0

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