CCNA考試試題含答案

QUESTION1

Whenyouareloggedintoaswitch,whichpromptindicatesthatyouareinprivilegedmode?

A.%

B.@

C.>

D.$

E.#

Answer:E

Explanation/Reference:

特權(quán)模式就是#提示符

QUESTION2

Whichcommandshowssystemhardwareandsoftwareversioninformation?

A.showconfiguration

B.showenvironment

C.showinventory

D.showplatform

E.showversion

Answer:E

Explanation/Reference:

查看系統(tǒng)的軟件和硬件仁;息使用的命令是showversion

QUESTION3

CiscoCatalystswitchesCAT1andCAT2haveaconnectionbetweenthemusingportsFAO/13.An802.1Qtrunk

isconfiguredbetweenthetwoswitches.OnCAT1,VLAN10ischosenasnative,butonCAT2thenativeVLANis

notspecified.Whatwillhappeninthisscenario?

A.802.1Qgiantsframescouldsaturatethelink.

B.VLAN10onCAT1andVLAN1onCAT2w川senduntaggedframes.

C.AnativeVLANmismatcherrormessagewillappear.

D.VLAN10onCAT1andVLAN1onCAT2willsendtaggedframes.

Answer:C

Explanation/Reference:

如果兩邊native^匹配的話.switch將報(bào)native不匹配的日志信息

QUESTION4

Whichcommandwouldcorrectlyconfigureaserialportonarouterwiththelastusablehostaddressinthe

2/29subnet?

A.Router(config-if)#ipaddress840

B.Router(config-if)#ipaddress924

C.Router(config-if)#ipaddress348

D.Router(config-if)#ipaddress948

E.Router(config-if)#ipaddress348

F.Router(config-if)#ipaddress848

Answer:F

Explanation/Reference:

2/29它的塊大d、為8掩石馬為48地址范圍為2-40

QUESTION5

ThenetworkdefaultgatewayapplyingtoahostbyDHCPis3/28.WhichoptionisthevalidIP

addressofthishost?

A.5

B.7

C.0

D.2

E.4

Answer:C

Explanation/Reference:

考點(diǎn)：考查VLSM

3/28所在網(wǎng)段的范圍是

2-7/28A：超出范圍

B：廣播地址

C：正確

D：網(wǎng)號(hào)

E：超出范圍

QUESTION6

Whichtwoaddressescanbeassignedtoahostwithasubnetmaskof?(Choosetwo.)

A.

B.

C.55

D.55

E.

Answer:BD

Explanation/Reference:

考點(diǎn)：考查VLSM

A：網(wǎng)絡(luò)號(hào)

B/D：正確

C：廣播地址

E：網(wǎng)絡(luò)號(hào)

QUESTION7

Thenetworkadministratorhasaskedyoutocheckthestatusoftheworkstation'sIPstackbypingingthe

loopbackaddress.Whichaddresswouldyoupingtoperformthistask?

A.

B.

C.

D.

Answer:B

Explanation/Reference:

考點(diǎn)：使用ping來檢測(cè)主機(jī)的IP棧。

ping實(shí)現(xiàn)。

QUESTION8

WorkstationAhasbeenassignedanIPaddressof4/28.WorkstationBhasbeenassignedanIP

addressof00/28.Thetwoworkstationsareconnectedwithastraight-throughcable.Attemptstoping

betweenthehostsareunsuccessful.Whattwothingscanbedonetoallowcommunicationsbetweenthehosts?

(Choosetwo.)

A.Replacethestraight-throughcablewithacrossovercable.

B.Changethesubnetmaskofthehoststo/25.

C.Changethesubnetmaskofthehoststo/26.

D.ChangetheaddressofWorkstationAto5.

E.ChangetheaddressofWorkstationBto11.

Answer:AB

Explanation/Reference:

考點(diǎn)：同構(gòu)設(shè)備使用交叉線，兩端的IP

需要在同一個(gè)子網(wǎng)。

A：使用交叉線替換現(xiàn)有的直通線。正

確。

B：修改掩碼為25位，正確。

C：修改掩石馬為26為，錯(cuò)誤。不能使他

們?cè)谕粋€(gè)子網(wǎng)。D/E：錯(cuò)誤，都不

能使他們?cè)谕粋€(gè)子網(wǎng)o

QUESTION9

YourISPhasgivenyoutheaddress/29toassigntoyourrouter'sinterface.Theyhavealso

givenyouthedefaultgatewayaddressof.Afteryouhaveconfiguredtheaddress,therouteris

unabletopinganyremotedevices.Whatispreventingtherouterfrompingingremotedevices?

A.Thedefaultgatewayisnotanaddressonthissubnet.

B.Thedefaultgatewayisthebroadcastaddressforthissubnet.

C.TheIPaddressisthebroadcastaddressforthissubnet.

D.TheIPaddressisaninvalidclassDmulticastaddress.

Answer:B

Explanation/Reference:

考點(diǎn)：考查VLSM。

/29所在網(wǎng)段的范圍是：

-/29A：默認(rèn)網(wǎng)關(guān)不屬于這個(gè)子網(wǎng)，

錯(cuò)誤

B：默認(rèn)網(wǎng)關(guān)是這個(gè)子網(wǎng)的廣播地址，正確

C：這個(gè)地址是子網(wǎng)的廣播地址，錯(cuò)誤

D：這個(gè)地址是組播地址，錯(cuò)誤。

QUESTION10

WhichcommandisusedtocopytheconfigurationfromRAMintoNVRAM?

A.copyrunning-configstartup-config

B.copystartup-config:running-config:

C.copyrunningconfigstartupconfig

D.copystartupconfigrunningconfig

E.writeterminal

Answer:A

Explanation/Reference:

QUESTION11

WhichcommandisusedtoloadaconfigurationfromaTFTPserverandmergetheconfigurationinto

RAM?

A.copyrunning-config:TFTP:

B.copyTFTP:running-config

C.copyTFTP:startup-config

D.copystartup-config:TFTP:

Answer:B

Explanation/Reference:

QUESTION12

Asystemadministratortypesthecommandtochangethehostnameofarouter.WhereontheCiscoIFSisthat

changestored?

A.NVRAM

B.RAM

C.FLASH

D.ROM

E.PCMCIA

Answer:B

Explanation/Reference:

running-config保存在RAM中

startup-config保存在NVRAM中

QUESTION13

Whichcommandisusedtoconfigureadefaultroute?

A.iproute

B.iproute

C.iproute

D.iproute

Answer:D

Explanation/Reference:

QUESTION14

IfIProutingisenabled,whichtwocommandssetthegatewayoflastresorttothedefaultgateway?

(Choosetwo.)

A.ipdefault-gateway

B.iproute

C.ipdefault-network

D.ipdefault-route

E.iproute

Answer:CE

Explanation/Reference:

產(chǎn)生默認(rèn)網(wǎng)關(guān)的兩種方式

ipdefault-network

iproute

QUESTION15

WhichcommandwouldyouconfiguregloballyonaCiscorouterthatwouldallowyoutoviewdirectly

connectedCiscodevices?

A.enablecdp

B.cdpenable

C.cdprun

D.runcdp

Answer:C

Explanation/Reference:

QUESTION16

WhichcommandisusedtoseethepathtakenbypacketsacrossanIPnetwork?

A.showiproute

B.showroute

C.traceroute

D.traceiproute

Answer:C

Explanation/Reference:

哪條命令用于查看數(shù)甥包轉(zhuǎn)發(fā)所經(jīng)過的路徑

A:查看路由表

B：沒有這條命令

C：正確

D：沒這條命令

QUESTION17

Whichcommandisusedtodebugapingcommand?

A.debugicmp

B.debugipicmp

C.debugtcp

D.debugpacket

Answer:B

Explanation/Reference:

ping調(diào)用了icmp協(xié)議，而icmp數(shù)據(jù)包封裝在ip包中。

QUESTION18

WhichcommanddisplaysCPUutilization?

A.showprotocols

B.showprocess

C.showsystem

D.showversion

Answer:B

Explanation/Reference:

杳看CPU利用率。

QUESTION19

Whenconfiguringaserialinterfaceonarouter,whatisthedefaultencapsulation?

A.atm-dxi

B.frame-relay

C.hdlc

D.lapb

E.ppp

Answer:C

Explanation/Reference:

缺省封裝是HDLC

QUESTION20

Whatmustbesetcorrectlywhenconfiguringaserialinterfacesothathigher-levelprotocolscalculatethebest

route?

A.bandwidth

B.delay

C.load

D.reliability

Answer:A

Explanation/Reference:

為了使高層路由協(xié)議計(jì)算最佳是各由，串口的什么東西必須被設(shè)置正確？在接

口下，只有帶寬是可以配置的。

QUESTION21

AcompanyimplementsvideoconferencingoverIPontheirEthernetLAN.Theusersnoticethatthe

networkslowsdown,andthevideoeitherstuttersorfailscompletely.Whatisthemostlikelyreasonfor

this?

A.minimumcellrate(MCR)

B.qualityofservice(QoS)

C.modulation

D.packetswitchingexchange(PSE)

E.reliabletransportprotocol(RTP)

Answer:B

Explanation/Reference:

考點(diǎn)：當(dāng)網(wǎng)絡(luò)中使用視頻會(huì)議后發(fā)現(xiàn)網(wǎng)絡(luò)非

常慢，什么原因弓I起的？QoS：用于定制第

略對(duì)不同流量進(jìn)行控制。

QUESTION22

WhichlayerintheOSIreferencemodelisresponsiblefordeterminingtheavailabilityofthereceiving

programandcheckingtoseeifenoughresourcesexistforthatcommunication?

A.transport

B.network

C.presentation

D.session

E.application

Answer:E

Explanation/Reference:

哪一層確定的接收程序的可用性？

應(yīng)用層提供

QUESTION23

Datatransferisslowbetweenthesourceanddestination.Thequalityofservicerequestedbythetransportlayer

intheOSIreferencemodelisnotbeingmaintained.Tofixthisissue,atwhichlayershouldthe

troubleshootingprocessbegin?

A.presentation

B.session

C.transport

D.network

E.physical

Answer:D

Explanation/Reference:

解決網(wǎng)絡(luò)問題，先確保網(wǎng)絡(luò)層通信。

QUESTION24

WhichprotocolsarefoundinthenetworklayeroftheOSIreferencemodelandareresponsibleforpath

determinationandtrafficswitching?

A.LAN

B.routing

C.WAN

D.network

Answer:B

Explanation/Reference:

0sl網(wǎng)絡(luò)層中什么提供了路徑選擇和流量轉(zhuǎn)發(fā)：？

山蹈山協(xié)議提供。通過手工或者動(dòng)態(tài)學(xué)習(xí)路由條目實(shí)現(xiàn)。

QUESTION25

Whichcommandrevealsthelastmethodusedtopowercyclearouter?

A.showreload

B.showboot

C.showrunning-config

D.showversion

Answer:D

Explanation/Reference:

哪一個(gè)命令可以顯示最近一次被用來重啟路由器的方法？

QUESTION26

WhichthreeoptionsarevalidWANconnectivitymethods?(Choosethree.)

A.PPP

B.WAP

C.HDLC

D.MPLS

E.L2TPv3

F.ATM

Answer:ACF

Explanation/Reference:

哪三種封裝屬于WAN鏈路的？

A:點(diǎn)到點(diǎn)協(xié)議，正確

B：無線加密技術(shù)，錯(cuò)誤

C：思科缺省封裝格式，正確。

D：多協(xié)議標(biāo)簽轉(zhuǎn)換，錯(cuò)誤

E：隧遒協(xié)議，錯(cuò)誤

F：正確。

QUESTION27

Refertotheexhibit.WhichWANprotocolisbeingused?

RouterA#sbo*,imertacepo53/0/0

POSS/0/01sup,limprotocolisup

K>rdKare1sPacketovtrSonet

Keepaliveset(10$?c)

scraiabl,disabled

UMIenqsent5X3treevd2474M9.LMX.LMXup

Broadcastqueue0/236.broadcastssene/dropped2574rfac?broadcasts2514S176

lastinput00:00:00.output00:00:00.outputh*ng

LISTclearingof-showInxerfac<*'c<r$

5alnuttInputrate0bics/s?ct0pa

5■inureoutputrare39000blt5/sectsAec

63153396packetsInput.。89中40nobuffer

Received0broaden”$(0、AwMt

0rums.0glam，Q5華

0parityJJ

4477JInputerrors,CftC.0frame.0overrun.027abort

XS3962s>pMketsoutput.e2751244360b/X”.。undtrruns

0outputerrors.0“plSqg.0Interfaceresets

0outputbufferfailures.0outputbuffersswappedout

0c>rr1<rtramitfom

A.ATM

B.HDLC

C.FrameRelay

D.PPP

Answer:C

Explanation/Reference:

由圖中的紅線可看到發(fā)送接受LMI信息。屬于FR的數(shù)據(jù)包。

QUESTION28

WhatisthedifferencebetweenaCSU/DSUandamodem?

A.ACSU/DSUconvertsanalogsignalsfromaroutertoaleasedline;amodemconvertsanalogsignals

fromaroutertoaleasedline.

B.ACSU/DSUconvertsanalogsignalsfromaroutertoaphoneline;amodemconvertsdigitalsignals

fromaroutertoaleasedline.

C.ACSU/DSUconvertsdigitalsignalsfromaroutertoaphoneline;amodemconvertsanalogsignals

fromaroutertoaphoneline.

D.ACSU/DSUconvertsdigitalsignalsfromaroutertoaleasedline;amodemconvertsdigitalsignals

fromaroutertoaphoneline.

Answer:D

Explanation/Reference:

CSU/DSU一般是專線，MODEN是將模擬信號(hào)與數(shù)字信號(hào)轉(zhuǎn)換

QUESTION29

Anetworkadministratormustconfigure200switchportstoaccepttrafficfromonlythecurrentlyattached

hostdevices.WhatwouldbethemostefficientwaytoconfigureMAC-levelsecurityonalltheseports?

A.VisuallyverifytheMACaddressesandthentelnettotheswitchestoentertheswitchport-portsecurity

mac-addresscommand.

B.Haveenduserse-mailtheirMACaddresses.Telnettotheswitchtoentertheswitchport-portsecurity

mac-addresscommand.

C.Usetheswitchportport-securityMACaddressstickycommandonalltheswitchportsthathaveend

devicesconnectedtothem.

D.Useshowmac-address-tabletodeterminetheaddressesthatareassociatedwitheachportandthen

enterthecommandsoneachswitchforMACaddressport-security.

Answer:C

Explanation/Reference:

考點(diǎn)：有200臺(tái)主機(jī)需要接入，采用什么方

式來增弓雖網(wǎng)絡(luò)安全性？A：先驗(yàn)證mac安全

性，然后在交換機(jī)上綁定。錯(cuò)誤，工作量太

大B：用戶發(fā):送郵件認(rèn)證再在交換機(jī)上配

置，錯(cuò)誤，不科學(xué)。

C：使用port-security,正確。

D：錯(cuò)誤，工作量太大。

QUESTION30

WhentroubleshootingaFrameRelayconnection,whatisthefirststepwhenperformingaloopbacktest?

A.SettheencapsulationoftheinterfacetoHDLC.

B.PlacetheCSU/DSUinlocal-loopmode.

C.Enablelocal-loopmodeontheDCEFrameRelayrouter.

D.VerifythattheencapsulationissettoFrameRelay.

Answer:A

Explanation/Reference:

在對(duì)FR進(jìn)彳亍排錯(cuò)的日寸候，當(dāng)做回環(huán)測(cè)試的口寸

候，第一步如何處理？

A：講接口配置成HDLC,正確，F(xiàn)R封裝下無法正

常ping自己端口

QUESTION31

WhatoccursonaFrameRelaynetworkwhentheCIRisexceeded?

A.AllTCPtrafficismarkeddiscardeligible.

B.AllUDPtrafficismarkeddiscardeligibleandaBECNissent.

C.AllTCPtrafficismarkeddiscardeligibleandaBECNissent.

D.AlltrafficexceedingtheCIRismarkeddiscardeligible.

Answer:D

Explanation/Reference:

在FR網(wǎng)絡(luò)中，當(dāng)CIR超過時(shí)會(huì)發(fā)生什么情況？

D：所有超過的流量都丟棄。

QUESTION32

WhataretwocharacteristicsofFrameRelaypoint-to-pointsubinterfaces?(Choosetwo.)

A.Theycreatesplit-horizonissues.

B.Theyrequireauniquesubnetwithinaroutingdomain.

C.Theyemulateleasedlines.

D.Theyareidealforfull-meshtopologies.

E.TheyrequiretheuseofNBMAoptionswhenusingOSPF.

Answer:BC

Explanation/Reference:

幀中繼點(diǎn)到點(diǎn)子接口的特點(diǎn)？

A：水平分割，錯(cuò)誤。

B：每個(gè)子接口需要一個(gè)獨(dú)立的網(wǎng)段，正確。

C：類似專線，正確。

D:全網(wǎng)互聯(lián)是理想拓?fù)洌e(cuò)誤。通常是hub-spoke

E：NBMA不支持OSPF,錯(cuò)誤。

QUESTION33

Refertotheexhibit.Addresseswithintherange/24arenotbeingtranslatedtothe1.128.0/16range.

Whichcommandshowsif/24areallowedinsideaddresses?

RouterA#showrunning-config

i

ipnatpoolinside_green54

ipnatinsidesourcelist101poolinside_green

A.debugipnat

B.showaccess-list

C.showipnattranslation

D.showipnatstatistics

Answer:B

Explanation/Reference:

那條命令可以看至/24是否在允許轉(zhuǎn)換范圍

O允許的范圍是通過ACL定義的。

A：打開NAT轉(zhuǎn)換的debug信息，錯(cuò)誤

B：查看acl信息，正確。

C：查看NAT轉(zhuǎn)換表，錯(cuò)誤。

D：查看靜態(tài)NAT。錯(cuò)誤

QUESTION34

Awirelessclientcannotconnecttoan802.11b/gBSSwithab/gwirelesscard.Theclientsectionofthe

accesspointdoesnotlistanyactiveWLANclients.Whatisapossiblereasonforthis?

A.Theincorrectchannelisconfiguredontheclient.

B.Theclient'sIPaddressisonthewrongsubnet.

C.Theclienthasanincorrectpre-sharedkey.

D.TheSSIDisconfiguredincorrectlyontheclient.

Answer:D

Explanation/Reference:

客戶端無法連接到無限接入點(diǎn)，查看不到可用的無線信號(hào)。這

通常是SSID信號(hào)沒有配置正確。A：不正確的信道。錯(cuò)誤

B=客戶端的IP地址配置錯(cuò)誤

C：客戶端的共享key錯(cuò)誤。

D：SSID配置不正確。

QUESTION35

WhichtwofeaturesdidWPAvladdtoaddresstheinherentweaknessesfoundinWEP?(Choosetwo.)

A.astrongerencryptionalgorithm

B.keymixingusingtemporalkeys

C.sharedkeyauthentication

D.ashorterinitializationvector

E.perframesequencecounters

Answe匚BE

Explanation/Reference:

考點(diǎn)：WPA1中增強(qiáng)?哪兩個(gè)在WEP中發(fā)現(xiàn)的弱點(diǎn)？WEP存在的

隱患主要是依賴共享忠銅A：更強(qiáng)的加密算法

B：混合使用的宙鑰

C：共享密鑰認(rèn)證

D：較短的初始化向量

E：一個(gè)幀一個(gè)序列計(jì)數(shù)器。

QUESTION36

WhichtwowirelessencryptionmethodsarebasedontheRC4encryptionalgorithm?(Choosetwo.)

A.WEP

B.CCKM

C.AES

D.TKIP

E.CCMP

Answer:AD

Explanation/Reference:

考點(diǎn)：咖兩種無限力口密技術(shù)依賴RC4

A:行線等效保密協(xié)議

B：英特爾開走一種協(xié)議

C：高級(jí)加密標(biāo)準(zhǔn)

D：暫時(shí)卷鑰集成協(xié)議

E:基于AES的加密方式

QUESTION37

WhataretwocharacteristicsofRIPv2?(Choosetwo.)

A.classfulroutingprotocol

B.variable-lengthsubnetmasks

C.broadcastaddressing

D.manualroutesummarization

E.usesSPFalgorithmtocomputepath

Answer:BD

Explanation/Reference:

A：有類路由協(xié)議，錯(cuò)誤

B：可變長(zhǎng)度子網(wǎng)掩碼，正確

C:采用廣播地址更新，錯(cuò)誤

D：手動(dòng)路由匯總，正確

E：使用spf算法計(jì)算路徑，錯(cuò)誤。

QUESTION38

WhichtwoEthernetfiber-opticmodessupportdistancesofgreaterthan550meters?

A.1000BASE-CX

B.100BASE-FX

C.1000BASE-LX

D.1000BASE-SX

E.1000BASE-ZX

Answer:CE

Explanation/Reference:

A：最長(zhǎng)距離25米

B：最長(zhǎng)距離100米

C：最長(zhǎng)距離3000米

D：最長(zhǎng)距離550米

E：最長(zhǎng)距離70千米

QUESTION39

Whattwothingswillarouterdowhenrunningadistancevectorroutingprotocol?(Choosetwo.)

A.Sendperiodicupdatesregardlessoftopologychanges.

B.Sendentireroutingtabletoallroutersintheroutingdomain.

C.Usetheshortest-pathalgorithmtothedeterminebestpath.

D.Updatetheroutingtablebasedonupdatesfromtheirneighbors.

E.Maintainthetopologyoftheentirenetworkinitsdatabase.

Answer:AD

Explanation/Reference:

考點(diǎn)：考查距離欠量路由協(xié)議耨性

A：周期性更新，正確

B：發(fā)送整個(gè)蹈由表到整個(gè)路山域，

錯(cuò)誤，只發(fā)送給鄰居C：使用SPF算法，

錯(cuò)誤

D：依靠鄰居發(fā)送更新來更新路由表，正確

E：在數(shù)據(jù)庫中維護(hù)整個(gè)網(wǎng)絡(luò)的拓?fù)?。錯(cuò)誤

QUESTION40

Refertotheexhibit.Accordingtotheroutingtable,wherewilltheroutersendapacketdestinedfor

5?

NetworkInterfaceNext*hop

/24eOdirectlyconnected

/24eldirectlyconnected

/25SOdirectlyconnected

/24Sidirectlyconnected

/24eO10.1.L2

4/28el10.122

4/29$0

10.1564/27si

A.

B.

C.

D.

Answer:C

Explanation/Reference:

路由查找原貝U：最長(zhǎng)掩碼匹配原則

QUESTION41

Whichcommandshowsifanaccesslistisassignedtoaninterface?

A.showipinterface[interface]access-lists

B.showipaccess-listsinterface[interface]

C.showipinterface[interface]

D.showipaccess-lists[interface]

AnswersC

Explanation/Reference:

QUESTION42

Refertotheexhibit.WhichruledoestheDHCPserverusewhenthereisanIPaddressconflict?

Routecfthouipdhcpconflict

IPaddressDetectionmethodDetectionelse

2PingFeb16199812:28PH

4GcatultousARPFeb23199808:12AN

A.Theaddressisremovedfromthepooluntiltheconflictisresolved.

B.Theaddressremainsinthepooluntiltheconflictisresolved.

C.OnlytheIPdetectedbyGratuitousARPisremovedfromthepool.

D.OnlytheIPdetectedbyPingisremovedfromthepool.

E.TheIPwillbeshown,evenaftertheconflictisresolved.

Answer:A

Explanation/Reference:

showipdhepconflict命令可以查看哪些ip地址在使

用上有沖突。有沖突的地址不再分配出去。

A：地址被冊(cè)I」除直到7中突解決，正確

B:地址保留直到?jīng)_突解決，錯(cuò)誤

C/D：答案片面。

E：?當(dāng)7中突解決后，地址會(huì)被顯示。錯(cuò)誤。

QUESTION43

Refertotheexhibit.YouareconnectedtotherouterasuserMike.Whichcommandallowsyoutoseeoutput

fromtheOSPFdebugcommand?

Routertfshowusers

LineUserHost(s)IdleLocation

?322vty0Mikeidle00:00:00laptop

InterfaceUserModeIdlePeerAddress

Routerdebugipospfevents

OSPFeventsdebuggingison

Router#

A.terminalmonitor

B.showdebugging

C.showsessions

D.showipospfinterface

Answer:A

Explanation/Reference:

A：讓debug信息在終端上顯示出來

B：沒這條命令

C：查看會(huì)話信息。

D:查看啟用了ospf的接口的相關(guān)信息。

QUESTION44

Refertotheexhibit.Ifnumber2isselectedfromthesetupscript,whathappenswhentheuserrunssetupfroma

privilegedprompt?

[0]GototheIOScommandpromptwithoutsavingthisconfig.

[1]Returnbacktothesetupwithoutsavingthisconfig.

[2]Savethisconfigurationtonvramandexit.

Enteryourselection[2]:

A.Setupisadditiveandanychangeswillbeaddedtotheconfigscript.

B.Setupeffectivelystartstheconfigurationoverasiftherouterwasbootedforthefirsttime.

C.Setupwillnotrunifanenablesecretpasswordexistsontherouter.

D.Setupw川notrun,becauseitisonlyviablewhennoconfigurationexistsontherouter.

Answer:A

Explanation/Reference:

[O]不保存進(jìn)入IOS命令配置模式

[1]不保存返回設(shè)置模式

[2]保存退出

A：設(shè)置和改動(dòng)被保存到配置腳本

B：為右效地重新開始配置，如果是各山黯

是第一次啟動(dòng)的四己置。C：如果配置了留

碼，設(shè)置不會(huì)運(yùn)行

D：設(shè)置不可用，因?yàn)樗荒茉跊]有配置存在時(shí)才有效。

QUESTION45

Refertotheexhibit.Which(config-router)commandwillallowthenetworkrepresentedontheinterfacetobe

advertisedbyRIP?

routerrip

version2

noauto-summary

i

interfaceethernetO

ipaddress

A.redistributeethernetO

B.networkethernetO

C.redistribute

D.network

Answer:D

Explanation/Reference:

考點(diǎn)：怎么才能讓接口通告RIP路山。

通告network網(wǎng)段實(shí)現(xiàn)。

QUESTION46

Refertotheexhibit.Whatinformationcanbegatheredfromtheoutput?

RouterAWdebugIprip

RIPprotocoldebuggingIson

vA4:432

A3432RIP:sendingv2flashupdatetoviaFastEthernetG/e()

v:

e332RIP:buildflashupdateentries

4:32ie.ie.i.e/24viae.e.o.e,netrici,tage

34:32RIP:sendingv2flashupdateto2viaLoopbacke(ie.16.1.1)

4:

A332RIP:buildflashupdateentries

w4:ie.e.e.0/8viae.e.e.e,wtric2,tage

4:32

332/24viae.0.0.0,metricI,tag0

。4:

e3

44:33RIP:ignoredv2packetfrom(sourcedfro?oneofouraddresses)

e3:

0r'H433RIP:receivedv2updatefromonFastEthernet0/e

utc:

6444ie.6.0.0/8viae.e.0.6in1hops

61

6r44RIP:sendingv2updatetoviaFastEthernetB/d()

644

34:RIP:buildupdateentries

/24viae.e.0.0,netrlc1.tage

A.OnerouterisrunningRIPvl.

B.RIPneighboris.

C.Thenetworkcontainsaloop.

D.Networkisreachable.

Answer:D

Explanation/Reference:

由圖中可以看出本地已經(jīng)存在這條路由。

QUESTION47

Refertottieexhibi].Whattypeofconnectionwouldbesupportedbythecablediagramshown?

Fundion

1『White/GreenTX*1White/GreenTX*

2GreenTX-2GreenTX-

3White/OrangeRX>3White/OrangeRX>

6OrangeRX-6OrangeRX?

A.PCtorouter

B.PCtoswitch

C.servertorouter

D.routertorouter

Answer:B

Explanation/Reference:

從圖中可以看出這是一條直通線。同構(gòu)設(shè)備使用交

叉線，異構(gòu)設(shè)備使用直通線。B：直通線

AC/D同構(gòu)設(shè)備使用交叉線

QUESTION48

Refertotheexhibit.Whattypeofconnectionwouldbesupportedbythecablediagramshown?

PmNurnbPrColorFunction

1White/GreenTX*3OrangeRX*

2GreenTX-6White/OrangeRX?

3White/OrangeRX*1GreenTX>

6OrangeRX-2White/GreenTX-

A.PCtorouter

B.PCtoswitch

C.servertoswitch

D.switchtorouter

Answer:A

Explanation/Reference:

QUESTION49

WhichtwostatementsdescribetheCiscoimplementationofVLANs?(Choosetwo.)

A.VLAN1isthedefaultEthernetVLAN.

B.CDPadvertisementsareonlysentonVLAN1002.

C.Bydefault,themanagementVLANisVLAN1005.

D.Bydefault,theswitchIPaddressisinVLAN1005.

E.VLAN1002through1005areautomaticallycreatedandcannotbedeleted.

Answer*:AE

Explanation/Reference:

考點(diǎn)：考查vlan知識(shí)點(diǎn)。

A：缺省都存在vlard,端口都屬于vlarh,正確

B：CDP信息只發(fā)送到vlan1002,錯(cuò)誤，vlan1002是fddi網(wǎng)絡(luò)的vlan號(hào)。

C：缺省情況交換機(jī)IP配置在vlanl005,錯(cuò)誤，vlanl005tmet網(wǎng)絡(luò)的vlan號(hào)。

缺省在vlanl里面。D：vlanl002-1005自動(dòng)生成并不能被刪除，正確，他們

都是被保留的特殊vlan。

QUESTION50

Refertotheexhibit.Whatcanbedeterminedabouttherouterfromtheconsoleoutput?

1FastEthernet/IEEE802.3interface(s)

125Kbytesofnon-volatileconfigurationm*。投.

65536KbytesofATAPCMCIAcardat?la、tj八0(/Sectorsize512bytes).

8192KbytesofFlash、'S尚ectorsize256K).

----System盤工ionDialog-----

Wouldyouliketoentertheinitialconfigurationdialog?[yes/no]:

A.NoconfigurationfilewasfoundinNVRAM.

B.Noconfigurationfilewasfoundinflash.

C.NoconfigurationfilewasfoundinthePCMCIAcard.

D.Configurationfileisnormalandwillloadin15seconds.

Answer:A

Explanation/Reference:

啟動(dòng)時(shí)缺省讀取保存在NVRAM里面的配置文件。提示進(jìn)入對(duì)話模式，說明沒行

保存配置文件。

QUESTION51

Refertotheexhibit.Whatcanbedeterminedfromtheoutput?

RoutervshowIparp

ProtocolAddress*??Hardware