[单选题]下面哪个操作可以使访问控制列表真正生效（）。

正确答案 ：A

将访问控制列表应用到接口上

[单选题]路由器上“水平分割”的功能是：()

正确答案 ：B

阻止路由环路

[单选题]查看E0端口配置信息的命令是：()

正确答案 ：D

show interfacee0

[单选题]路由器上端口fa0/0,其最大传输速率是（）Mbit/s

正确答案 ：C

100

[单选题]OSI七层模型中，网络层的数据封装名称为（）

正确答案 ：C

包

[多选题]网络中经常使用“帧中继”服务，请选出帧中继的优点（）

正确答案 ：ABD

偷占带宽

提供拥塞管理机制

灵活的接入方式

解析：ABD

[单选题]路由器“特权模式”的提示符是：（）

正确答案 ：B

[单选题]通过路由器的“配置端口console”对路由器进行配置，应该使用的线缆为（）

正确答案 ：C

反转线缆

[单选题]A receiving host has failed to receive all of the segments that it should acknowledge.What can the host do to improve the reliability of this communication session?

正确答案 ：E

Decrease the window size

解析：解析：Explanation:

[多选题]The Ezonexam network administrator issues the ping 192.168.2.5 command and successfully tests connectivity to a host that has been newly connected to the network. Which protocols were used during the test? (Choose two)

正确答案 ：AE

ARP

ICMP

解析：解析：Explanation:ARPfindsthehardwareaddressofahostfromaknownIPaddress.Here'showitworks:whenIPhasadatagramtosend,itmustinform.aNetworkAccessprotocol,suchasEthernetorTokenRing,ofthedestination'shardwareaddressonthelocalnetwork.(Ithasalreadybeeninformedbyupper-layerprotocolsofthedestination'sIPaddress.)IfIPdoesn'tfindthedestinationhost'shardwareaddressintheARPcache,itusesARPtofindthisinformation.ICMPworksattheNetworklayerandisusedbyIPformanydifferentservices.ICMPisamanagementprotocolandmessagingserviceproviderforIP.ItsmessagesarecarriedasIPdatagrams.RFC1256isanannextoICMP,whichaffordshosts'extendedcapabilityindiscoveringroutestogateways.Periodically,routeradvertisementsareannouncedoverthenetwork,reportingIPaddressesfortherouter'snetworkinterfaces.Hostslistenforthesenetworkinfomercialstoacquirerouteinformation.Aroutersolicitationisarequestforimmediateadvertisementsandmaybesentbyahostwhenitstartsup.

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