[单选题]网关的功能（）
正确答案 ：B
不同网段通信
[单选题]路由表中，某条路由的“路由代码为D”，则表明该路由为（）
正确答案 ：D
EIGRP路由
[单选题]标准访问控制列表的数字标识范围是（）。
正确答案 ：B
1-99
[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]Ezonexam is migrating to a private IP addressing scheme. Which of the following describe the use of private IP addresses? (Choose two)
正确答案 ：BD
Addresses that cannot be routed through the public Internet.
A scheme to conserve public addresses.
解析：解析：Explanation:
[单选题]哪一个命令可以设置路由器特权用户的“明文密码”（）
正确答案 ：A
enable password
[多选题]You need to configure a default route on a Ezonexam router. Which command will configure a default route on a router?
正确答案 ：ABCD
VE1(config) ip route 0.0.0.0 10.1.1.0 10.1.1.1
VE1(config) ip default-route 10.1.1.0
VE1(config) ip default-gateway 10.1.1.0
VE1(config) ip route 0.0.0.0 0.0.0.0 10.1.1.1
解析：解析：Explanation:Thecommand"IProute0.0.0.00.0.0.0quot;$commandisusedtoconfigureadefaultrouteonarouter.Inthiscase,adefaultroutewithanexthopIPaddressof10.1.1.1wasconfigured.IncorrectAnswers:A.Thiswillbeaninvalidroute,sincethe"10.1.1.0"valuewillspecifythenetworkmask,whichinthiscaseisinvalid.B,C.Thesecommandsareinvalid.Thecommand"ipdefault-network"couldbeused,butnot"ipdefault-route"or"ipdefault-gateway".IPdefault-gatewayisusedonswitches,notrouters.
[单选题]两个VLAN之间要想通信，应该使用的设备是（）
正确答案 ：C
路由器
[单选题]访问控制列表分为标准和扩展两种。下面关于ACL的描述中，错误的是()。
正确答案 ：C
标准ACL可以根据分组中的IP目标地址进行过滤
[多选题]What are two results of entering the VESwitch(config)# vtp mode client command on a Catalyst switch in the Ezonexam LAN? (Choose two.)
正确答案 ：BC
The switch will forward VTP summary advertisements
The switch will process VTP summary advertisements
解析：解析：Explanation:Servermode:VTPservershavefullcontroloverVLANcreationandmodificationfortheirdomains.AllVTPinformationisadvertisedtootherswitchesinthedomain,whileallreceivedVTPinformationissynchronizedwiththeotherswitches.Bydefault,aswitchisinVTPservermode.NotethateachVTPdomainmusthaveatleastoneserversothatVLANscanbecreated,modified,ordeleted,andVLANinformationcanbepropagated.Clientmode:VTPclientsdonotallowtheadministratortocreate,change,ordeleteanyVLANs.Instead,theylistentoVTPadvertisementsfromotherswitchesandmodifytheirVLANconfigurationsaccordingly.Ineffect,thisisapassivelisteningmode.ReceivedVTPinformationisforwardedouttrunklinkstoneighboringswitchesinthedomain,sotheswitchalsoactsasaVTPrelay.Transparentmode:VTPtransparentswitchesdonotparticipateinVTP.Whileintransparentmode,aswitchdoesnotadvertiseitsownVLANconfiguration,andaswitchdoesnotsynchronizeitsVLANdatabasewithreceivedadvertisements.InVTPversion1,atransparent-modeswitchdoesnotevenrelayVTPinformationitreceivestootherswitches,unlessitsVTPdomainnamesandVTPversionnumbersmatchthoseoftheotherswitches.InVTPversion2,transparentswitchesdoforwardreceivedVTPadvertisementsoutoftheirtrunkports,actingasVTPrelays.ThisoccursregardlessoftheVTPdomainnamesetting.
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