正确答案: AD

带宽 延时

题目：默认情况下，IGRP衡量路径好坏时，考虑的因素为（）

解析：AD

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举一反三的答案和解析：

[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

[多选题]在配置帧中继子接口时，在物理接口上应该配置的内容是：()

封装帧中继协议

指定子接口类型

设定子接口

解析：BCD

[单选题]OSI第二层数据封装完成后的名称是：()

帧

[单选题]You have a class C network, and you need to design it for 5 usable subnets with each subnet handling a minimum of 18 hosts each. Which of the following network masks should you use?

255.255.255.224

解析：解析：Explanation:ThedefaultsubnetmaskforclassCnetworkis255.255.255.0.Ifonehastocreate5subnets,then3bitsarerequired.With3bitswecancreate8subnets.Theremaining5bitsareusedforHosts.Onecancreate30hostsusing5bitsinhostfield.Thismatcheswiththerequirement.IncorrectAnswers:A,B:ThisisanillegalsubnetmaskforaclassCnetwork,asthethirdoctetcannotbedividedwhenusingaclassCnetwork.C:ThisisthedefaultsubnetmaskforaclassCnetwork.Itprovidesforonenetwork,with254usablehostIPaddresses.E:Thissubnetmaskwillprovidefor14separatenetworkswith14hostseach.Thisdoesnotmeettherequirementofaminimumof18hosts.

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

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]默认情况下，RIP定期发送路由更新的时间是（）

30S

[单选题]Which type of cable should be used to make a connection between the Fa0/0 port on a router and the Fa0/0 port switch?

Straight-through cable

解析：解析：Explanation:Straight-throughcablesareusedtoconnecthosttoswitch(orhub)androutertoswitch(orhub).

[单选题]两台路由器直连到一起，应该使用的线缆为（）

交叉线缆