新CCNA题库word版151200题word精品文档13页.docx
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新CCNA题库word版151200题word精品文档13页
QUESTION151
“教书先生”恐怕是市井百姓最为熟悉的一种称呼,从最初的门馆、私塾到晚清的学堂,“教书先生”那一行当怎么说也算是让国人景仰甚或敬畏的一种社会职业。
只是更早的“先生”概念并非源于教书,最初出现的“先生”一词也并非有传授知识那般的含义。
《孟子》中的“先生何为出此言也?
”;《论语》中的“有酒食,先生馔”;《国策》中的“先生坐,何至于此?
”等等,均指“先生”为父兄或有学问、有德行的长辈。
其实《国策》中本身就有“先生长者,有德之称”的说法。
可见“先生”之原意非真正的“教师”之意,倒是与当今“先生”的称呼更接近。
看来,“先生”之本源含义在于礼貌和尊称,并非具学问者的专称。
称“老师”为“先生”的记载,首见于《礼记?
曲礼》,有“从于先生,不越礼而与人言”,其中之“先生”意为“年长、资深之传授知识者”,与教师、老师之意基本一致。
Refertothetopologyandrouteroutputshownintheexhibit.Atechnicianistroubleshootinghost
唐宋或更早之前,针对“经学”“律学”“算学”和“书学”各科目,其相应传授者称为“博士”,这与当今“博士”含义已经相去甚远。
而对那些特别讲授“武事”或讲解“经籍”者,又称“讲师”。
“教授”和“助教”均原为学官称谓。
前者始于宋,乃“宗学”“律学”“医学”“武学”等科目的讲授者;而后者则于西晋武帝时代即已设立了,主要协助国子、博士培养生徒。
“助教”在古代不仅要作入流的学问,其教书育人的职责也十分明晰。
唐代国子学、太学等所设之“助教”一席,也是当朝打眼的学官。
至明清两代,只设国子监(国子学)一科的“助教”,其身价不谓显赫,也称得上朝廷要员。
至此,无论是“博士”“讲师”,还是“教授”“助教”,其今日教师应具有的基本概念都具有了。
connectivityissuesontheswitches.ThehostsinVLANs10and15onSw11areunabletocommunicate
要练说,得练看。
看与说是统一的,看不准就难以说得好。
练看,就是训练幼儿的观察能力,扩大幼儿的认知范围,让幼儿在观察事物、观察生活、观察自然的活动中,积累词汇、理解词义、发展语言。
在运用观察法组织活动时,我着眼观察于观察对象的选择,着力于观察过程的指导,着重于幼儿观察能力和语言表达能力的提高。
withhostsinthesameVLANsonSw12.HostsintheAdminVLANareabletocommunicate.Theport-to-
VLANassignmentsareidenticalonthetwoswitches.Whatcouldbetheproblem?
A.TheFa0/1portisnotoperationalononeoftheswitches.
B.TheLinkconnectingtheswitcheshasnotbeenconfiguredasatrunk.
C.AtleaseoneportneedstobeconfiguredinVLAN1forVLANs10and15tobeabletocommunicate.
D.PortFastEthernet0/1needstobeconfiguredasanaccesslinkonbothswitches.
E.ArouterisrequiredforhostsonSw11inVLANs10and15tocommunicatewithhostsinthesame
VLANonSw12.
QUESTION152
Youhavefinishedphysicallyinstallinganaccesspointontheceilingatyouroffice.Ataminimum,which
paramentermustbeconfiguredontheaccesspointinordertoallowawirelessclienttooperateonit?
A.AES
B.PSK
C.SSID
D.TKIP
E.WEP
QUESTION153
Refertotheexhibit.AnetworkadministratorneedstoaddanewVLAN,namedVLAN3,tothenetwork
shown.Unfortunately,thereisnotanotherFastEthernetinterfaceonR1toconnecttothenewVLAN3.
Whichapproachisthemostcosteffectivesolutionforthisproblem
A.PurchaseanewFastEthernetmoduleandinstallitonR1
B.ReplaceR1withanewrouterthathasatleastthreeFastEthernetinterfaces.
C.ConfigureasecondswitchtosupportVLAN3withaVLANtrunkbetweenSW1andthenewswitch.
D.ConfigureasingleVLANtrunkbetweenR1andSW1andconfiguresubinterfaceonR1interfacefor
eachVLAN.
E.ConnectanotherroutertoaserialinterfaceofR1.UseaFastEthernetinterfaceonthenewrouterfor
VLAN3
QUESTION154
Refertotheexhibit.WhenrunningEIGRP,WhatisrequiredforRouterAtoexchangeroutingupdateswith
RouterC
A.Asnumbersmustbechangedtomatchonalltherouters.
B.LoopbackinterfacemustbeconfiguredsoaDRiselected.
C.Thenoauto-summarycommandisneededonRouterAandRouterC.
D.RouterBneedstohavetwonetworkstatements,oneforeachconnectednetwork
QUESTION155
Refertotheexhibit.ThetwoexhibitdevicesaretheonlyCiscodevicesonthenetwork.Theserialnetwork
betweenthetwodeviceshasamaskof255.255.255.252.Giventheoutputthatisshown,whatthree
statementsaretrueofthesedevices?
(Choosethree.)
A.TheManchesterserialaddressis10.1.1.1
B.TheManchesterserialaddressis10.1.1.2
C.TheLondonrouterisaCisco2610.
D.TheManchesterrouterisaCisco2610.
E.TheCDPinformationwasreceivedonportSerial0/0oftheManchesterrouter.
F.TheCDPinformationwassentbyportSerial0/0oftheLondonRouter.
QUESTION156
HowisanEUI-64formatinterfaceIDcreatedfroma48-bitMACaddress?
A.byappending0xFFtotheMACaddress.
B.byprefixingtheMACaddresswith0xFFEE.
C.byprefixingtheMACaddresswith0xFFandappending0xFFtoit.
D.byinserting0xFFFEbetweentheupperthreebytesandthelowerthreebytesoftheMACaddress
E.byprefixingtheMACaddresswith0xFandinserting0xFaftereachofitsfirstthreebytes.
QUESTION157
Refertotheexhibit.AfteraRIProuteismarkedinvalidonRouter_1,howmuchtimewillelapsebeforethat
routeisremovedfromtheroutingtable?
QUESTION158
Refertotheexhibit.Anetworkassociatehasconfiguredtheinternetworkthatisshownintheexhibit,but
hasfailedtoconfigureroutingproperly.
WhichconfigurationwillallowthehostsontheBranchLANtoaccessresourcesontheHQLANwiththe
leastimpactonrouterprocessingandWANbandwidth?
A.HQ(config)#iproute192.168.1.0255.255.255.0192.168.2.5
Branch(config)#iproute172.16.25.0255.255.255.0192.168.2.6
B.HQ(config)#routerrip
HQ(config-router)#network192.168.2.0
HQ(config-router)#network172.16.0.0
Branch(config)#routerrip
Branch(config-router)#network192.168.1.0
Branch(config-router)#network192.168.2.0
C.HQ(config)#routereigrp56
HQ(config-router)#network192.168.2.4
HQ(config-router)#network172.16.25.0
Branch(config)#routereigrp56
Branch(config-router)#network192.168.1.0
Branch(config-router)#network192.168.2.4
D.HQ(config)#routerospf1
HQ(config-router)#network192.168.2.40.0.0.3area0
HQ(config-router)#network172.16.25.00.0.0.255area0
Branch(config)#routerospf1
Branch(config-router)#network192.168.1.00.0.0.255area0
QUESTION159
WhichadditionalconfigurationstepisnecessaryinordertoconnecttoanaccesspointthathasSSID
broadcastingdisabled?
A.SettheSSIDvalueintheclientsoftwaretopublic.
B.ConfigureopenauthenticationontheAPandtheclient.
C.SettheSSIDvalueontheclienttotheSSIDconfiguredontheAP.
D.ConfiguredMACaddressfilteringtopermittheclienttoconnecttotheAP.
QUESTION160
WhatisonereasonthatWPAencryptionispreferredoverWEP?
A.AWPAkeyislongerandrequiresmorespecialcharactersthantheWEPkey.
B.TheaccesspointandtheclientaremanuallyconfiguredwithdifferentWPAkeyvalues.
C.WPAkeyvaluesremainthesameuntiltheclientconfigurationischanged.
D.ThevaluesofWPAkeyscanchangedynamicallywhilethesystemisused.
QUESTION161
AnetworkadministratoristroubleshooinganEIGRPproblemonarouterandneedstoconfirmtheIP
addressesofthedeviceswithwhichtherouterhasestablishedadjacency.Theretransmitintervalandthe
queuecountsfortheadjacentroutersalsoneedtobechecked.Whatcommandwilldisplaytherequired
information?
A.Router#showipeigrpadjacency
B.Router#showipeigrptopology
C.Router#showipeigrpinterfaces
D.Router#showipeigrpneighbors
QUESTION162
AllWANlinksinsidetheABCUniversitynetworkusePPPwithCHAPforauthenticationsecurity.Which
commandwilldisplaytheCHAPauthenticationprocessasitoccurbetweentworoutersinthenetwork?
A.showchapauthentication
B.showinterfaceserial0
C.debugpppauthentication
D.debugchapauthentication
E.showpppauthenticationchap
QUESTION163
Refertotheexhibit.Anetworktechnicianisaskedtodesignasmallnetworkwithredundancy.Theexhibit
representsthisdesign,withallhostsconfiguredinthesameVLAN.Whatconclusionscanbemadeabout
thisdesign?
A.Thedesignwillfunctionasintended
B.Spanning-treewillneedtobeused.
C.Therouterwillnotaccepttheaddressingscheme.
D.Theconnectionbetweenswitchesshouldbeatrunk.
E.Therouterinterfacesmustbeencapsulatedwiththe802.1Qprotocol.
QUESTION164
Refertotheexhibit.HowshouldtheFastEthernet0/1portonthe2950modelswitchesthatareshowninthe
exhibitbeconfiguredtoallowconnectivitybetweenalldevices?
A.Theportsonlyneedtobeconnectedbyacrossovercable.
B.SwitchX(config)#interfaceFastEthernet0/1
SwitchX(config-if)#switchportmodetrunk
C.SwitchX(config)#interfaceFastEthernet0/1
SwitchX(config-if)#switchportmodeaccess
SwitchX(config-if)#switchportaccessvlan1
D.SwitchX(config)#interfaceFastEthernet0/1
SwitchX(config-if)#switchportmodetrunk
SwitchX(config-if)#switchporttrunkvlan1
SwitchX(config-if)#switchporttrunkvlan10
SwitchX(config-if)#switchporttrunkvlan20
QUESTION165
IPaddressandroutingforthenetworkareconfiguredasshownintheexhibit.Thenetworkadministrator
issuestheshowipeigrpneighborscommandfromRouter1andreceivestheoutputshownbelowthe
topology.Whichstatementistrue?
A.ItisnormalforRouter1toshowoneactiveneighboratatimetopreventroutingloops.
B.RoutingisnotcompletelyconfiguredonRouter3.
C.TheIPaddressesarenotconfiguredproperlyontheRouter1andRouter3interfaces.
D.Thenoauto-summarycommandconfiguredontherouterspreventsRouter1andRouter2fromforming
aneighborrelationship.
QUESTION167
Refertotheexhibit.Theoutputthatisshownisgeneratedataswitch.Whichthreeofthesestatementsare
true?
(Choosethree.)
A.Allportswillbeinastateofdiscarding,learning,orforwarding.
B.ThiryVLANshavebeenconfiguredonthisswitch.
C.Thebridgepriorityislowerthanthedefaultvalueforspanningtree.
D.Allinterfacesthatareshownareonsharedmedia.
E.Alldesignatedportsareinaforwardingstate.
F.TheswitchmustbetherootbridgeforallVLANsonthisswitch.
QUESTION168
Refertotheexhibit.AnetworkadministratorattemptstopingHost1fromHost1andreceivestheresultthat
areshown.Whatisapossibleproblem?
A.ThelinkbetweenHost1andSwitch1isdown.
B.TCP/IPisnotfunctioningonHost1.
C.ThelinkbetweenRouter1andRouter2isdown.
D.ThedefaultgatewayonHost1isincorrect.
E.InterfaceFa0/0onRouter1isshudown.
F.ThelinkbetweenSwitch1andRouter1isdown.
QUESTION169
Refertotheexhibit.TheBigtimerouterisunabletoauthenticatetotheLittletime
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