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CCNA 2 Chapter 1 2011 V4.0 Answers

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June 13, 2011 by admin 17 Cmments

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CCNA 2 Chapter 1 2011 V4.0 Answers 100%

1. If a router cannot find a valid configuration file during thestartup

sequence, what will occur?

The startup sequence will reset.

The router will prompt the user for a response to enter setupmoe.

The startup sequence will halt until a !ali confi"uration fileis acquire.The router will "enerate a efault confi"uration file#ase on the last !ali

confi"uration.

The router will monitor local traffic to etermine routin"protocol confi"uration

requirements.

2.

Refer to the exhibit. The network adinistrator has configuredthe router

with the interface I! addresses shown for the directl" connectednetworks.

!ings fro the router to hosts on the connected networks orpings

between router interfaces are not working. #hat is the ostlikel"

proble?

The estination networ$s o not eist.

The &' aresses on the router interfaces must #e confi"ure asnetwor$ aresses an

not host aresses.

The interfaces must #e ena#le with the no shutown comman.

(ach interface must #e confi"ure with the cloc$ rate comman.

$.

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Refer to the exhibit. #hat can be concluded fro the routingtable output

in the exhibit? %&hoose two.'

This router onl) has two interfaces.

The router interfaces are not operational )et.

This router is confi"ure to forwar pac$ets to remotenetwor$s.

The *ast(thernet0+0 an Serial0+0+0 interfaces of this routerwere confi"ure with an

&' aress an the no shutown comman.

An &' pac$et recei!e #) this router with a estination aressof 1,-.1-.,.1 will #e

forware out of the Serial0+0+0 interface.

(.

Refer to the exhibit. The frae shown in the exhibit was receivedb" the

router. The router interfaces are operational. )ow will therouter processthis frae? %&hoose two.'

The router will chan"e the source an estination &' aress inthe pac$et #efore

forwarin" the frame.

The router will chan"e the frame t)pe to one supporte #) the ANlin$ #efore

forwarin" the frame.

The router will use the estination /AC aress to etermine whichinterface to

forwar the pac$et.

The router will loo$ up the /AC aress of the S0+0+0 interface inthe A' ta#le an

a it to the frame #efore forwarin".

The frame was recei!e on the *a0+0 interface of the router anwill #e switche to the

S0+0+0 interface.

The frame was recei!e on the S0+0+0 interface of the router anwill #e switche to

the *a0+0 interface.

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.#hich are functions of a router? %&hoose three.'

pac$et switchin"

etension of networ$ se"ments

se"mentation of #roacast omains

selection of #est path #ase on lo"ical aressin"

election of #est path #ase on ph)sical aressin"

3.

Refer to the exhibit. /ll routers have a route in its routingtable to each

network that is shown in the exhibit. 4efault routes have notbeen issued

on these routers. #hat can be concluded about how packets areforwarded

in this network? %&hoose two.'

&f outerC recei!es a pac$et that is estine for 10.5.1.16 itwill #e forware out

interface *a0+0.

&f outerA recei!es a pac$et that is estine for1,2.17-.8.1476 it will #e forware out

interface S0+0+1.

&f outer9 recei!es a pac$et that is estine for 10.5.2:.156it will #e forware out

interface S0+0+1.

&f outer9 recei!es a pac$et that is estine for 1:2.20.255.16it will #e forware out

interface S0+0+0.

&f outerC recei!es a pac$et that is estine for 1,2.17.5.1016it will #e forware out

interface S0+0+1.15.

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The serial connection shown in the graphic needs to beconfigured. #hich

configuration coands ust be ade on the "dne" router to

establishconnectivit" with the 6elbourne site? %&hoosethree.'

S)ne);confi" ip address 251.155.*$.2 2**.2**.2**.5

S)ne);confi" no shutdown

S)ne);confi" ip address 251.155.*$.1 2**.2**.2**.22(

S)ne);confi" clock rate *-555

S)ne);confi" ip host 6elbourne 251.155.*$.2

11.

Refer to the exhibit. #hat can be concluded fro the output ofthe

running7configuration of a router?

The passwors are encr)pte.

The current confi"uration was sa!e to NVA/.

The confi"uration that is shown will #e the one use on the netre#oot.

The commans that are ispla)e etermine the current operation ofthe router.

12.

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Refer to the exhibit. )ost / pings host 8. #hen R( accepts theping into

the 9thernet interface, what two pieces of header inforationare

included? %&hoose two.'

source &' aress? 1,2.17-.10.12,

source &' aress? 9999.8888.57::estination &' aress?1,2.17-.10.88

estination &' aress? 1,2.17-.10.184

estination /AC aress? ,,,,.@[emailprotected]

1$.#hat is the outcoe of entering these coands?

1;confi"=> line vt" 5 ( 1;confi" password check12$

1;confi" login

ensures that a passwor is entere #efore enterin" user ((Cmoe

sets the passwor to #e use for connectin" to this router !iaTelnet

requires chec$128 to #e entere #efore the confi"uration can #esa!e

creates a local user account for lo""in" in to a router orswitch

1(.#hich of the following is the correct flow of routines for arouter

startup?

loa #ootstrap6 loa &OS6 appl) confi"uration

loa #ootstrap6 appl) confi"uration6 loa &OS

loa &OS6 loa #ootstrap6 appl) confi"uration6 chec$harware

chec$ harware6 appl) confi"uration6 loa #ootstrap6 loa&OS

1*.#hat three processes does a router execute when it receives apacketfro one network that is destined for another network?%&hoose three.'

ecapsulates the a)er 8 pac$et #) strippin" off the a)er 2 frameheaer

uses the estination /AC Aress in the &' 3eaer to loo$ up thenet

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uses the estination &' Aress in the &' heaer to loo$ upthe net

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#hich interfaces in the exhibit could be used for a leased line#/

connection? %&hoose two.'

1

2

8

4

5

7

25. :ro what location can a router load the &isco I+ duringthe boot

process? %&hoose two.'

A/T*T' ser!er

NVA/

setup routine

*lash memor)

terminal

21./ network adinistrator has ;ust entered new configurationsinto

Router1. #hich coand should be executed to saveconfiguration

changes to cop" running7config flash

outer1;confi"=> cop" running7config flash

outer1> cop" running7config startup7config

outer1;confi"=> cop" running7config startup7config

outer1> cop" startup7config running7config

outer1;confi"=> cop" startup7config running7config

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22.#hat is the default sequence for loading the configurationfile?

NVA/6 *AS36 O/

*AS36 T*T'6CONSO(

NVA/6 T*T'6 CONSO(

*AS36 T*T'6 O/

2$.#hat header address inforation does a router change inthe

inforation it receives fro an attached 9thernet interfacebefore

inforation is transitted out another interface?

onl) the a)er 2 source aress

onl) the a)er 2 estination aress

onl) the a)er 8 source aress

onl) the a)er 8 estination aress

the a)er 2 source an estination aress

the a)er 8 source an estination aress

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OCT

1

Examen CCNA2 v4.0 Captulo 1

!"amen CCNA2 #4.0 Cap$tu 1

1. Cnsute a presenta&i'n. (espu)s de *ue e hst 2 es&ne&tad a swit&h de a +AN, estinhabiitad para&muni&arse &n e hst 1. -Cu es a &ausa de esteprbema

a. +a ms&ara de subred de hst 2 es in&rre&ta.b. Elhost 1 y el host 2 se encuentran en redes diferentes.&. !swit&h ne&esita una dire&&i'n / *ue n est&niurada.d. +a intera +AN de ruter y e hst 1 se en&uentranen redes dierentes.e. +a dire&&i'n / de hst 1 seen&uentra en una red dierente *ue a *ue se en&uentra a

intera +AN de ruter.2. i un ruter n en&uentra un ar&hi##id de &niura&i'n durante a se&uen&ia deini&i,

-*u) &urrea. e #ue#e a ini&iar a se&uen&ia deini&i.b. El router le indicar al usuario que d una respuestapara entrar en el modo de

configuracin.&. +a se&uen&ia de ini&i se detienehasta *ue se ad*uiere un ar&hi# de &niura&i'n #id.d. !ruter enera un ar&hi# de &niura&i'n pr dee&t apartir de a 5tima &niura&i'n

#ida.e. ! ruter mnitrea e tri& &a para determinar sre*uisits de a &niura&i'n de

prt& de enrutamient.3. Cnsute a presenta&i'n. -A *u)&n&usi'n se puede ear a bser#ar a taba de

enrutamient de a presenta&i'n 6!ia ds p&ines8.a. !steruter s' tiene ds intera&es.b. +as intera&es de ruter a5n nestn perati#as.

&. !ste ruter est &niurad para reen#iar pa*uetes a redesremtas.d. Las interfaces FastEthernet0/0 y erial0/0/0 de esterouter fueron configuradas con una

direccin !" y el comando no shutdo#n.e. $n paquete !" reci%idopor el router con una direccin de destino de 1&'.1'.&.1ser

reen(iado fuera de la interfa) erial0/0/0.4. -9u) inrma&i'nde dire&&i'n de en&abead &ambia un ruter en ainrma&i'n *ue re&ibe

desde una intera !thernet &ne&tada antes de *ue setransmita a inrma&i'n a traintera

a. s' a dire&&i'n rien de Capa 2b. s' adire&&i'n destin de Capa 2&. s' a dire&&i'nrien de Capa 3d. s' a dire&&i'n destin de Capa 3e. ladireccin origen y destino de *apa 2. a dire&&i'n rien ydestin de Capa 3:. -Cues sn as un&ines de un ruter 6!ia tresp&ines8.a. conmutacin de paquetesb. e"tensi'n de sem*nts dered&. segmentacin de los dominios de %roadcastd. seleccin de lame+or ruta %asada en un direccionamiento lgicoe. see&&i'nde a mer ruta basada en un dire&&inamient $si&;. !administradr de red ne&esita &ne&tar ds rutersdire&tamente a tra#)s de sus puerts

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a. dire&t 6straiht=thruh8b. transpuest&. de cone,incru)adad. seria7. >n administradr de red a&aba de inresarnue#as &niura&ines a ?uter 1. -9u)

&mands se deben ee&utar para uardar s &ambis en a&niura&i'n a NV?A@

a. ?uter1 &py runnin=&ni ashb. ?uter16&ni8 &pyrunnin=&ni ash&. ?uter1 &py runnin=&nistartup=&nid. -outer1config copy runningconfig startupconfige.?uter1 &py startup=&ni runnin=&ni. ?uter16&ni8&py startup=&ni runnin=&niB. Cnsute a presenta&i'n.ds s ruters tienen una ruta en su taba de enrutamient para

&ada red *ue apare&e en a presenta&i'n. +as rutas prdee&t n se han emitid en estsruters. -9u) &n&usi'n sepuede sa&ar sbre a manera en *ue s pa*uetes se reen#$an enestared 6!ia ds p&ines8.

a. i ?uterC re&ibe un pa*uete destinad a 10.:.1.1, sereen#iar uera de a intera

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b. esta%lece la contrase>a a utili)ar para conectar esterouter (ia :elnet&. re*uiere inresar &he&K123 antes deuardar a &niura&i'nd. &rea una &uenta de usuari&a para &ne&tarse a un ruter swit&h13. -Cu es ase&uen&ia pr dee&t para &arar e ar&hi# de&niura&i'na. NV?A@,

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a. ! baan&e de &ara se prdu&e &uand un ruteren#$a e mism pa*uete a dierentes redesde destin.

b. ! baan&e de &ara se prdu&e &uand se en#$a amisma &antidad de pa*uetes a tra#)s derutas estti&as ydinmi&as.

&. El %alanceo de carga permite que el router reen(Bepaquetes a la misma red de destinoa tra(s de (arias rutas.

d. E!D-" admite %alanceo de carga con distinto costo.e. ie"isten #arias rutas &n dierentes m)tri&as a destins, eruter n puede admitir baan&ede &ara.

20. -Cues sn as ds airma&ines *ue des&riben&rre&tamente s &mpnentes de unruter 6!ia dsp&ines8.

a. +a ?A@ ama&ena de manera permanente e ar&hi# de&niura&i'n utiiad durante ase&uen&ia deini&i.

b. La -A< contiene los diagnsticos e+ecutados en los mdulosde hard#are.&. +a NV?A@ ama&ena una &pia de respad de/G usad durante a se&uen&ia de inicio.d. La memoria Flashno pierde sus contenidos cuando se reinicia.e. +a ?G@ &ntiene a#ersi'n ms a&tua y ms &mpeta de /G..

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*hapter 2

1.Ghich of the follo#ing is true regarding *=" and the graphicsho#nH

C( runnin n ?uter ( wi ather inrmatin abut ruters A, E, C, and!.

7y default6 -outer #ill recei(e *=" ad(ertisem*nts from routers7 and *.

/ ruters ( and ! are runnin dierent rutin prt&s, they wi nte"&hane C( inrmatin.

?uter ! &an use C( t identiy the /G runnin n ?uter E.

2. Ghich address can %e used to summari)e net#orCs 192.13.0.0/25thru 192.13.9.0/25H

192.13.0.0/21

172.1;.1.0D22

172.1;.0.0 2::.2::.2::.24B

172.1;.0.0 2::.2::.2:2.0

4.

-efer to the e,hi%it. Io# #ill pacCets destined to the192.13.0.0 net#orC %e for#ardedH

-outer1 #ill perform recursi(e looCup and pacCet #ill e,it0/0.?uter1 wi perrm re&ursi#e Kup and pa&Ket wi e"it0D1.

here is n mat&hin intera&e ass&iated with netwrK172.1;.0.0 s pa&Kets wi be drpped.

here is n mat&hin intera&e ass&iated with netwrK172.1;.0.0 s pa&Kets wi taKe ateway ast resrt

and e"it ut 0D2.

5. static route that points to the ne,t hop !" #ill ha(e #hatadministrati(e distance and metric in the

routing ta%leH

administrati#e distan&e 0 and metri& 0

administrati#e distan&e 0 and metri& 1

administrati(e distance of 1 and metric of 0

administrati#e distan&e 1 and metri& 1

8. Iosts on t#o separate su%nets cannot communicate. :he net#orCadministrator suspects a missing

route in one of the routing ta%les. Ghich three commands can %eused to help trou%leshoot Layer 4

connecti(ity issuesH *hoose three.

ping

shw arp

traceroute

sho# ip route

shw &ntrers

shw &dp neihbr

3.

-efer to the e,hi%it. Ghich static route should %e configured on-outer1 so that host #ill %e a%le toreach host 7 on the 192.13.0.0net#orCH

ip rute 1F2.1;B.0.0 172.1;.0.0 2::.2::.0.0

ip rute 172.1;.0.0 2::.2::.0.0 1F2.1;B.0.1

ip rute 172.1;.0.0 2::.2::.0.0 0D0D1

ip route 192.13.0.0 288.288.0.0 0/0/0

9. Ghich of the follo#ing are displayed %y the -outer sho# cdpneigh%ors commandH *hoose three.

ad

platform

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reiabiity

holdtime

local interface

'. Ghy is it ad(isa%le to enter a ne,thop !" address #hencreating a static route #hose e,it interface

is an Ethernet net#orCH

Addin the ne"t=hp address eiminates the need r the ruter t d anyKups in the rutin tabe bere

rwardin a pa&Ket.!n a multiaccess net#orC6 the router cannotdetermine the ne,thop sin a ne"t=hp address in a stati& rutepr#ides a rute with a wer metri&.

/n muti=a&&ess netwrKs, usin a ne"t=hp address in astati& rute maKes that rute a &andidate deaut

rute.

&.

-efer to the e,hi%it. Ghich set of commands #ill configurestatic routes that #ill allo# the Ginter"arC

and the ltamonte routers to deli(er pacCets from each L? anddirect all other traffic to the !nternetH

Ginter"arCconfig ip route 0.0.0.0 0.0.0.0 1&2.13'.153.1

ltamonteconfig ip route 10.0.245.0 288.288.288.01&2.13'.153.2

ltamonteconfig ip route 0.0.0.0 0.0.0.0 s0/1

MinterarK6&ni8 ip rute 0.0.0.0 0.0.0.0 1F2.1;B.14;.1

Atamnte6&ni8 ip rute 10.0.234.0 2::.2::.2::.01F2.1;B.14;.2

Atamnte6&ni8 ip rute 1FB.1B.222.0 2::.2::.2::.2:: s0D1

MinterarK6&ni8 ip rute 172.1F1.;7.0 2::.2::.2::.01F2.1;B.14;.1

MinterarK6&ni8 ip rute 0.0.0.0 0.0.0.0 1F2.1;B.14;.1

Atamnte6&ni8 ip rute 10.0.234.0 2::.2::.2::.01F2.1;B.14;.2

MinterarK6&ni8 ip rute 172.1F1.;7.0 2::.2::.2::.01F2.1;B.14;.1

Atamnte6&ni8 ip rute 10.0.234.0 2::.2::.2::.01F2.1;B.14;.2

Atamnte6&ni8 ip rute 0.0.0.0 0.0.0.0 s0D0

10. Ghat happens to a static route entry in a routing ta%le #henthe outgoing interface is not a(aila%leH

:he route is remo(ed from the ta%le.

he ruter ps neihbrs r a repa&ement rute.he rute remains inthe tabe be&ause it was deined as stati&.

he ruter redire&ts the stati& rute t &mpensate r thess the ne"t hp de#i&e.

11.

-efer to the e,hi%it. Di(en the output in the e,hi%it6 ho# #oulda clocC rate %e determined for this linCH

he rate wud be netiated by bth ruters.

A rate wud nt be see&ted due t the (C!D(! &nne&tinmismat&h.

he rate &niured n the (! determines the &&Krate.

:he rate configured on the =*E determines the clocC rate.

12. Ghich piece of information is a(aila%le from e,amining theoutput of the command sho# ip

interface %riefH/ntera&e speed and dupe"

/ntera&e @>

!rrrs

/ntera&e @AC address

!nterface !" address

14. Ghat t#o de(ices are responsi%le for con(erting the datafrom the G? ser(ice pro(ider into a

form accepta%le %y the routerH *hoose t#o.

the seria prt the ruter

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a modem

a swit&h

the ethernet prt the ruter

a *$/=$ de(ice

a (! de#i&e

15.

-efer to the e,hi%it. Ghat t#o commands are required to pro(ideconnecti(ity %et#een the 1&2.13'.1.0

and 10.0.0.0 net#orCs #ithout requiring recursi(e looCupH *hooset#o.

config ip route 10.0.0.0 288.0.0.0 s 0/1/0

A6&ni8 ip rute 10.0.0.0 2::.0.0.0 172.1;.40.2

A 6&ni8 ip rute 10.0.0.0 2::.0.0.0 s 0D0D0

7config ip route 1&2.13'.1.0 288.288.288.0 s 0/0/0

E 6&ni8 ip rute 1F2.1;B.1.0 2::.2::.2::.0 172.1;.40.1

E6&ni8 ip rute 1F2.1;B.1.0 2::.2::.2::.0 s 0D1D0

18. router has one static route configured to each destinationnet#orC. Ghich t#o scenarios #ould

require an administrator to alter the static routes that areconfigured on that routerH *hoose t#o.

:he destination net#orC no longer e,ists.

he destinatin netwrK is m#ed t a dierent intera&e n the sameruter.

he path between the sur&e and destinatin is upraded with ahiher bandwidth inK.

he remte destinatin netwrK intera&e has t be dwn r 1:minutes maintenan&e.

topology change occurs #here the e,isting ne,thop address ore,it interface is not accessi%le.

13. net#orC administrator enters the follo#ing command into-outer1; ip route 1&2.13'.0.0

288.288.288.0 0/1/0. -outer1 then recei(es a pacCet that isdestined for 1&2.13'.0.22/25. fter finding

the recently configured static route in the routing ta%le6 #hatdoes -outer1 do ne,t to process the

pacCetH

drps the pa&Ket be&ause the destinatin hst is nt istedin the rutin tabe

Ks up the @AC address the 0D1D0 intera&e t determine thedestinatin @AC address the new rame

perrms a re&ursi#e Kup r the / address the 0D1D0intera&e bere rwardin the pa&Ket

encapsulates the pacCet into a frame for the G? linC andfor#ards the pacCet out the 0/1/0 interface

19.

-efer to the e,hi%it. company net#orC engineer is assigned toesta%lish connecti(ity %et#een the

t#o Ethernet net#orCs so that hosts on the 10.1.1.0/25 su%netcan contact hosts on the 10.1.2.0/25

su%net. :he engineer has %een told to use only static routingfor these company routers. Ghich set of

commands #ill esta%lish connecti(ity %et#een the t#o Ethernetnet#orCsH

?16&ni8 ip rute 10.1.2.0 2::.2::.2::.0 1F2.1;B.0.1

?26&ni8 ip rute 10.1.1.0 2::.2::.2::.0 1F2.1;B.0.2

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?16&ni8 ip rute 10.1.2.0 2::.2::.2::.0 1F2.1;B.0.2

?26&ni8 ip rute 10.1.1.0 2::.2::.2::.0 1F2.1;B.0.1

-1config ip route 10.1.1.0 288.288.288.0 1&2.13'.0.2

-2config ip route 10.1.2.0 288.288.288.0 1&2.13'.0.1

?16&ni8 ip rute 10.1.1.0 2::.2::.2::.0 1F2.1;B.0.1

?26&ni8 ip rute 10.1.2.0 2::.2::.2::.0 1F2.1;B.0.2

?16&ni8 ip rute 0.0.0.0 0.0.0.0 10.1.2.1

?26&ni8 ip rute 0.0.0.0 0.0.0.0 10.1.1.1

1'.

-efer to the e,hi%it. Ghat is the significance of the /' in theroute to the 10.0.0.0 net#orCH

/t indi&ates that there are B hps between this ruter and the10.0.0.0 netwrK.

/t represents the time, in miise&nds, it taKes r a pin trepy when sent t the 10.0.0.0 netwrK.

/t indi&ates that there are B subnets in the destinatinnetwrK t whi&h the ruter &an rward pa&Kets.

!t indicates the num%er of consecuti(e %its6 from the left6 inthe destination !" address of a pacCet that

must match 10.0.0.0 to use that route.

1&.

-efer to the e,hi%it. Ghat t#o commands #ill change the ne,thopaddress for the 10.0.0.0/' net#orC

from 192.13.50.2 to 1&2.13'.1.2H *hoose t#o.

A6&ni8 n netwrK 10.0.0.0 2::.0.0.0 172.1;.40.2

A6&ni8 n ip address 10.0.0.1 2::.0.0.0 172.1;.40.2

config no ip route 10.0.0.0 288.0.0.0 192.13.50.2

A6&ni8 ip rute 10.0.0.0 2::.0.0.0 s0D0D0

config ip route 10.0.0.0 288.0.0.0 1&2.13'.1.2

20. Ghich t#o statements descri%e functions or characteristicsof *="H *hoose t#o.

!t starts up automatically and allo#s the de(ice to detectdirectly connected neigh%or de(ices that use

*=".

/t perates at the netwrK ayer and aws tw systems t earn abutea&h ther.

/t &reates a tpy map the entire netwrK.!t allo#s systems tolearn a%out each other e(en if different net#orC layer protocolsare configured.

/t rwards ad#ertisem*nts abut rutes r aster&n#eren&e.

21. :he output of the -outer sho# interfaces serial 0/1 commanddisplays the follo#ing;

erial0/1 is up6 line protocol is do#n.

Mhat is the mst iKey &ause r the ine prt& bein dwn

eria0D1 is shutdwn.

here is n &abe &nne&tin the ruters.

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he remte ruter is usin seria 0D0.

?o clocC rate has %een set.

CCNA 2 - Examen Unidad 2

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CCNA 2 = !"amen >nidad 3

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1.#hich two stateents correctl" describe the concepts ofadinistrative

distance and etric? %&hoose two.'

Aministrati!e istance refers to the trustworthiness of aparticular route.

A router first installs routes with hi"her aministrati!eistances.

The !alue of the aministrati!e istance can not #e altere #) thenetwor$

aministrator.

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outes with the smallest metric to a estination inicate the #estpath.

The metric is alwa)s etermine #ase on hop count.

The metric !aries epenin" which a)er 8 protocol is #ein" route6such as &' or &'.

2.

Refer to the exhibit. #hichstateent correctl" describes how R1will deterine the best path to R2?

R1 will install a RI! route using network / in its routing tablebecause the

adinistrative distance of RI! is higher than 9I=R!.

1 will install a &' route usin" networ$ A in its routin"ta#le #ecause the path cost

from &' is lower than (&B'.

1 will install an (&B' route usin" networ$ 9 in its routin"ta#le #ecause the

aministrati!e istance of (&B' is lower than &'.

1 will install an (&B' route usin" networ$ 9 in its routin"ta#le #ecause the path

cost from (&B' is lower than &'.

1 will install an (&B' route an a &' route in itsroutin" ta#le an loa #alance

#etween them.

$.#hich two stateents are true regarding classless routingprotocols?

%&hoose two.'

sens su#net mas$ information in routin" upates

sens complete routin" ta#le upate to all nei"h#ors

is supporte #) &' !ersion 1

allows for use of #oth 1,2.17-.1.0+80 an 1,2.17-.1.17+2- su#netsin the sametopolo")

reuces the amount of aress space a!aila#le in anor"aniDation

(.#hich coand would the network adinistrator issue to deterineif

load balancing is in effect on a router?

show ip protocols

show ip route

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show ip interface #rief

show ip interface

*.#hich stateent is true regarding routing protocols?

&' uses hop count an #anwith as the metric for pathselection an sensupates

perioicall).

OS'* is a Cisco proprietar) protocol that sens upates tri""ere#) topolo") chan"es.

(&B' uses @A to calculate the shortest path an can #econfi"ure to o unequal

cost loa #alancin".

9B' is a path !ector interior routin" protocol.

-.#hich two conditions would create a setting where the use of adistance7

vector routing protocol would be efficient? %&hoosetwo.'

the networ$ requires a special hierarchical esi"n

fast con!er"ence of the networ$ is crucial

the networ$ is usin" a hu# an spo$e topolo")

the networ$ is usin" a flat esi"n

there are more than 15 hops #etween the most istant routers

.#hat is the purpose of a routing protocol?

&t is use to #uil an maintain A' ta#les.

&t pro!ies a metho for se"mentin" an reassem#lin" atapac$ets.

&t allows an aministrator to e!ise an aressin" scheme forthe networ$.

&t allows a router to share information a#out $nown networ$swith other routers.

&t pro!ies a proceure for encoin" an ecoin" ata into #itsfor pac$et forwarin".

.#hich of the following best describes the operation ofdistance

vectorrouting protocols?

The) use hop count as their onl) metric.

The) onl) sen out upates when a new networ$ is ae.

The) sen their routin" ta#les to irectl) connecte nei"h#ors.

The) floo the entire networ$ with routin" upates.

3.#hich of the following is associated with link7state routingprotocols?

low processor o!erhea

poison re!erse

routin" loops

split horiDon

shortest

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1*.#hat will be the result of the following coands?

O;confi"=> interface fastethernet 55 O;confi" ip address12.1-.$.1

2**.2**.2**.5 O;confi" no shutdown

The 1:2.17.8.0 networ$ will #e route #) an) )namic routin"protocol automaticall).

A routin" ta#le entr) is mae to the 1:2.17.8.0 networ$ with acoe of ECF.

A static route is require to route traffic to the 1:2.17.8.0networ$.

The commans will #e sa!e to the startup

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#hat does the nuber 123 indicate in this output?

The cost for this lin$ has a !alue of 12,.

The cloc$ rate on this serial interface is set to 12,6000.

The net

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destination network?

The router will install the first route it learne into theroutin" ta#le.

The router will install #oth routes in the routin" ta#le an loa#alance #etween the

two.

The router will put the first route in the routin" ta#le6 anenote the secon route as a

#ac$up route.

The router will pic$ the path with the hi"her #anwith an willplace it in the routin"

ta#le.

22.#hen ultiple routing protocols have a route to the saedestination

network, what deterines which route is installed in the routingtable?

#est metric

lowest hop count

"reatest a!aila#le #anwith

lowest aministrati!e istance

lowest cost

CCNA 2 = !"amen >nidad 4

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1.

#hat actions will occur after Router/ loses connectivit" tonetwork

11(.12*.1-.5? %&hoose two.'

outer9 will inclue networ$ 128.,2.:7.0 an 187.125.-5.0 in itsupate to outerA.

@urin" the net upate inter!al6 outer9 will sen a &' upateout #oth ports that

inclues the inaccessi#le networ$.@urin" the net upate inter!al6outerC will sen an upate to outer9 statin" that

networ$ 114.125.17.0 is accessi#le in 2 hops.

outer C will learn of the loss of connecti!it) to networ$114.125.17.0 from outer9.

outer9 will inclue networ$ 128.,2.:7.0 an 187.125.-5.0 in itsupate to outerC.

2.#hat does a router running RI! do first with a new route thatis

received fro an advertiseent?

places it immeiatel) in the routin" ta#le

aGusts the metric for the new route to show the ae istance forthe route

a!ertises this route out all other interfaces ecept the one thatit came in on

sens a pin" pac$et to !erif) that the path is a feasi#leroute

$.

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Refer to the exhibit. If all routers are using RI!, how an"rounds of

updates will occur before all routers know all networks?

1

2

8

4

5

7

(.#hich of the following ethods does split horiCon use toreduce

incorrectrouting inforation?

outin" upates are split in half to reuce the upate time.

&nformation learne from one source is not istri#ute #ac$ tothat source.

New route information must #e learne from multiple sources to #eaccepte.

The time #etween upates is split in half to speecon!er"ence.

New route information is suppresse until the s)stem hascon!er"e.

*.

Refer to the exhibit. The routers in this network are runningRI!. Router /

has not received an update fro Router 8 in over three inutes.)ow will

Router / respond?

The 3olown timer will wait to remo!e the route from the ta#lefor 70 secons.

The &n!ali timer will mar$ the route as unusa#le if an upatehas not #een recei!e in

1-0 secons.

The pate timer will request an upate for routes that were learnefrom outer 9.

The 3ello timer will epire after 10 secons an the route will #eflushe out of

the routin"ta#le.

-.

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The graphic shows a network that is configured to use

RI! routing protocol. Router2 detects that the link to Router1has gone

down. It then advertises the network for this link with a hopcount etric

of 1-. #hich routing loop prevention echanis is in effect?

split horiDon

error conition

hol

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15.#hich two stateents are true regarding the function ofthe

RI!v1 routingupdates? %&hoose two'.

upates are #roacast onl) when there are chan"es to thetopolo")

upates are #roacast at re"ular inter!als

#roacast are sent to 0.0.0.0

#roacasts are sent to 255.255.255.255

upates contain the entire networ$ topolo")

onl) chan"es are inclue in the upates

11./ network adinistrator is evaluating RI! versus 9I=R! for anew

network. The network will be sensitive to congestion and ustrespond

quickl" to topolog" changes. #hat are two good reasons to choose9I=R!

instead of RI! in this case? %&hoose two.'

(&B' uses perioic upates.

(&B' onl) upates affecte nei"h#ors.

(&B' uses #roacast upates.

(&B' upates are partial.

(&B' uses the efficient 9ellman

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instructs routers to i"nore upates6 for a specifie time ore!ent6 a#out possi#le

inaccessi#le routes

1*.

Refer to the exhibit. #hat path will packets fro the132.1-.1.52(

network travel to reach the 15.5.5.5 network if RI! is theactiverouting protocol?

The path will #e router A

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e!er reachin" its intene estination

the istri#ution of routes from one routin" protocol intoanother

1.#hich stateent is true regarding ciscoDs RI!EFITT9Rvariable?

&t pre!ents the s)nchroniDation of routin" upates #)#ufferin" the upates as the)

lea!e the router interface

&t pre!ents the s)nchroniDation of routin" upates #)su#tractin" a ranom len"th of

time ran"in" from 0% to 15% of the specifie inter!al time fromthe

net routin" upate

&t pre!ents the s)nchroniDation of routin" upates #) causin"the router to s$ip e!er)

other scheule upate time

&t pre!ents the s)nchroniDation of routin" upates #) forcin"the router to listen when

its time for other upates on the lines #efore senin" it

13.#hich three routing protocols are distance vector routingprotocols?

%&hoose three'.

&'!1

(&B'

OS'*

&S

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1.

Refer to the exhibit. The network that is shown is runningRI!v1. The

132.1-.15.52( network was recentl" added and will onl" containend

users. #hat coand or set of coands should be entered onRouter1

to prevent RI!v1 updates fro being sent to the end user deviceson the

new network while still allowing this new network to beadvertised toother routers?

outer1;confi" no router rip outer1;confi" networ$1,2.17-.10.0

outer1;confi" no networ$ 1,2.17-.10.0

outer1;confi" passi!e

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Refer to the exhibit. The 9thernet interface on Router2 goesdown and the

adinistrator notices that the route is still in the

Router1 routing table. )ow uch longer will Router1 keep thedown

network in its routing table before arking it as possibl"down?

80 secons

,0 secons

155 secons

1-0 secons

255 secons

(.#hat is the default update period in seconds for the

RI! routing protocol?

10

12

15

20

80

70

*.#hich of the following is considered a liitation of RI!v1?

&' !1 oes not sen su#net mas$ information in its upates.

&' !1 is not wiel) supporte #) networ$in" harware!enors.

&' !1 consumes ecessi!e #anwith #) multicastin" routin"upates usin" a Class @

aress.

&' !1 requires enhance router processors an etra A/ tofunction effecti!el).

&' !1 oes not support loa #alancin" across equal

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consiers a metric of 17 as infinit)

has an aministrati!e istance of 110 #) efault

inclues the estination &' aress an su#net mas$ in routin"upates

calculates metrics usin" the 9ellman *or al"orithm

.

#hich of the following would be the correct coand sequence toenable

RI! on Router 8 for all connected networks?

outer9> router rip

outer9;router=> network 215.$-..5 outer9;router=>network

225.1.23.5outer9;router=> network 211.1-.(.5

outer9;confi"=> router rip outer9;confi" network

13.1-.(.5outer9;confi" network 211.1-.(.5 outer9;confi" network133.(.$2.5

outer9;confi"=> configure router rip outer9;confi"network

215.$-..5outer9;confi" network 133.(.$2.5 outer9;confi" network211.1-.(.5

outer9;confi"=> router rip outer9;confi" network

13.1-.(.5outer9;confi" network 215.$-..5 outer9;confi" network211.1-.(.5

outer9;confi"=> router rip outer9;confi" network

13.1-.(.5outer9;confi" network 215.$-..5 outer9;confi" network225.1.23.5

3.

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Refer to the exhibit. /ll routers are configured with validinterface

addresses in the indicated networks and are running RI!v1. Thenetwork

is converged. #hich routes are present in the routingtables?

All routers ha!e all routes in their routin" ta#le.

All routers ha!e all +80 routes6 #ut o not ha!e +24 routes intheir routin" ta#le.

All routers ha!e all +80 routes. outers A an ( also ha!e some ofthe +24 routes in

theirroutin" ta#le.

All routers ha!e all +80 routes. outers 9 an @ also ha!e some ofthe +24 routes in

theirroutin" ta#le.

outers A an ( ha!e all routes. outers 9 an @ ha!e onl) +80routes in

their routin"ta#le.

outers A an ( ha!e onl) +24 routes. outers 9 an @ ha!e onl) +80routes in

theirroutin" ta#le.15.#hat will happen if an interface I!address is entered for the address

portion of the network coand in a RI!v1 configuration instead ofa

network address?

The router will reGect the comman.

A route to the host aress will #e ae to out"oin" &'upates.

A route to the host aress will #e ae to the routin" ta#le.

All interfaces in the same classful networ$ as the confi"urearess will #e inclue in

the &'!1 routin" process.

11.

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Refer to the exhibit. Router1 and Router2 are running the RI!v1protocol.

The network adinistrator configures the coand network 15.1.5.5on

Router1. #hat network will Router1 advertise to Router2?

10.1.0.0+17

10.1.0.0+-

10.0.0.0+17

10.0.0.0+-

12.

Refer to the exhibit. /ll routers in the exhibit are running RI!v1. The

network adinistrator issues the show ip route coand on router/.

#hat routes would appear in the routing table output if thenetwork

is converged? %&hoose two'.

1,2.17-.2.0+24 I120+1J

C 1,2.17-.2.0+24 I120+1J

10.10.8.0+24 I120+0J

C 10.10.8.0+24 I120+1J

10.10.1.0+24 I120+2J

10.10.1.0+24 I120+8J

1$.

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Refer to the exhibit. / network consists of ultiple routers.#hat can be

verified when the show ip protocols coand is issued on one ofthe

routers in the network?

whether all routes in the networ$ ha!e #een properl) ae to theroutin" ta#le

routin" protocol confi"uration in use for &' on thisrouter

operational status of routin" protocols in use on all routers inthe networ$

routin" metric of each networ$ that is liste in the routin"ta#le

1(.

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Refer to the exhibit. #hat can be concluded fro the routingtable output

of router 8?

A static efault route has #een confi"ure on 9.Theefault55>$5,

erial55 #hat is the value of the routing etric?

8

12

20

80

120

1-.

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Refer to the exhibit. /ll routers that are shown are runningthe

RI! routingprotocol. /ll unknown I! traffic ust be forwarded tothe I!.

#hat router or set of routers are recoended to have both adefault

route and the default7inforation originatecoand issued toipleent

this forwarding polic"?

onl) outer1

onl) the "atewa) router

all routers in the networ$

onl) the routers with ANs neein" &nternet access

1.

Refer to the exhibit. Router1 is running RI!v1. #hat coandwas

entered into Router1 to configure the gatewa" of lastresort?

no auto7suar"

ip default7network 5.5.5.5ip default7gatewa" 15.5.5.5

ip route 5.5.5.5 5.5.5.5 551

1.#hich coand or set of coands will stop the RI! routingprocess?

outer9;confi"=> router rip Router8%config7router'Bshutdown

outer9;confi"=> router rip Router8%config7router'B networkno

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132.1-.2.5

outer9;confi"=> no router rip

outer9;confi"=> router no rip

13.#hich two stateents are true regarding the characteristics ofRI!v1?

%&hoose two'.

&t is a istance !ector routin" protocol.

&t a!ertises the aress an su#net mas$ for routes in routin"upates.

The ata portion of a &' messa"e is encapsulate into a TC'se"ment.

The ata portion of a &' messa"e is encapsulate into a @'se"ment.

&t #roacasts upates e!er) 15 secons.

&t allows a maimum of 15 routers in the routin" omain.

25.

Refer to the exhibit. RI!v1 is running on all three routers. /llinterfaces

have been correctl" configured with addresses in the addressranges that

are shown. #hich route would "ou see in the routing table onrouter &)I if

the routers are configured with the coands that are displa"edin

the exhibit?

1,2.17-.0.4+80

1,2.17-.0.0+24

1,2.17-.0.0+17

1,2.17-.0.82+2:

21. Refer to the exhibit. The 9thernet interface on Router2 goesdown and

the adinistrator notices that the route is still valid in therouting table of

Router1.)ow uch longer will it take for Router1 to ark the routeinvalid

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b" setting the etric to 1-?

80 secons

,0 secons

155 secons

1-0 secons255 secons

CCNA 2 = !"amen >nidad :

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In the network shown in the graphic, three bits were borrowedfro the

host portion of a &lass & address. )ow an" valid hostaddresses will be

unused on the three point7to7point links cobined if

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255.255.255.24-

255.255.255.252

-.#hat does

1. pin"s from 1 to the S0+0+0 interface on 2K.successful

2. pin"s from 1 to the *a0+0 interface on 2K.successful

8. pin"s from host 9 to hosts on the 10.1.1.0+24networ$K.successful

4. pin"s from host 9 to the *a0+0 interface on 2K.successful

5. pin"s from 2 to host 9K.successful.

hat is the li$el) cause of the failure of the pin" from 1 tohost 9L

The efault "atewa) on host 9 is not correctl) set.

There are no routes #ac$ to networ$s connecte to 1 from 2.

There is a a)er 2 pro#lem #etween 2 an host 9.

3ost 9 has a efecti!e (thernet car.

15./ network adinistrator is tasked with dividing up a class& network

aong the H/, ales, and /dinistration departents. The H/

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departent is ade up of 15 people, the ales is ade up of 2people, and

the /dinistration has -. #hich two subnets asks adequatel"address

the H/ and ales departents? %&hoose two.'

255.255.255.252 for MA

255.255.255.224 for Sales

255.255.255.240 for MA

255.255.255.24- for MA

255.255.255.0 for Sales

11.

Refer to the exhibit. / network engineer is suariCing the twogroups of

routes on router R1 shown in the exhibit. #hich suariCation willwork

for all the subnets?

1,2.17-.0.0+28

1,2.17-.0.0+22

1,2.17-.0.0+21

1,2.17-.0.0+20

12

/ &lass & address has been assigned for use in thenetwork shown in the

graphic. sing

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be the total nuber of unused host addresses available?

7

14

2,

84

40

72

1-.

/n additional subnet is required for a new 9thernet link betweenRouter1

and Router2 as shown in the diagra. #hich of the followingsubnet

addresses can be configured in this network to provide a axiu of1(

useable addresses for this link while wasting the fewestaddresses?

1,2.1.1.17+271,2.1.1.,7+2-

1,2.1.1.170+2-

1,2.1.1.1,7+2:

1,2.1.1.224+2-

1,2.1.1.240+2-

1.#hat is a supernet?

the networ$ for a efault route

a summariDation of classful aresses

a networ$ that contains #oth pri!ate an pu#lic aresses

a set of isconti"uous networ$s that are controlle #) an&S'

1.

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VS/

C&@

pri!ate &' aresses

classful routin"

21.

Refer to the exhibit. #hat subnet ask will be applied b" router8 when it

receives a RI!v1 update for the network 12.1-.1.5?

none

-

17

24

22.

Refer to the exhibit. / network technician enters the staticroute in R1

needed to reach network 15.1.1.52(. / ping fro R1 to )ost 8fails. The

technician begins testing the network and has the followingresults>

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1. pin"s from 1 to the S0+0+0 interface on 2K.successful

2. pin"s from 1 to the *a0+0 interface on 2K.successful

8. pin"s from 3ost 9 to hosts on the 10.1.1.0+24networ$K.successful

4. pin"s from 3ost 9 to the *a0+0 interface on 2K.successful

5. pin"s from 2 to 3ost 9K.successful

2$. #hat is the likel" cause of the failure of the ping fro R1to )ost 8?

3ost 9 has a efecti!e (thernet car.

The efault "atewa) on 3ost 9 is not correctl) set.

There is a a)er 2 pro#lem #etween 2 an 3ost 9.

2 oes not ha!e routes #ac$ to networ$s connecte to 1.

Examen CCNA2 v4.0 Captulo 6

!"amen CCNA2 #4.0 Cap$tu ;1. -9u) es *ue V+@ e permite ha&era un administradr de reda. utiiar una ms&ara de subred en unsistema aut'nm%. Jutili)ar mKltiples msaras de su%red en el mismoespacio de direccin !"&. utiiar /? &m e prt& deenrutamient en td un sistema aut'nmd. utiiar m5tipes prt&s deenrutamient dentr de un sistema aut'nm2. >n administradr de redtiene &m tarea di#idir una red de &ase C entre sdepartaments

de Cntr de Caidad, Ventas y Administra&i'n. ! departament deCntr de Caidad estrmad pr 10 persnas, e de Ventas est rmad pr 2Bpersnas y a Administra&i'n tiene;. -Cues sn as ms&aras desubredes *ue dirien &rre&tamente s departaments deCntr deCaidad y de Ventas 6!ia ds p&ines8.

a. 2::.2::.2::.2:2 para Cntr de Caidad

%.

J288.288.288.225 para @entasc. J288.288.288.250 para *ontrol de*alidadd. 2::.2::.2::.24B para Cntr de Caidade. 2::.2::.2::.0 paraVentas3. e ha asinad una dire&&i'n Case C para ser utiiadaen a red *ue se iustra en e ri&.

i se usa V+@, -&u es a ms&ara de bits *ue se debe utiiarpara suministrar &nei&ien&ia a &antidad dedire&&ines de hst *ue se re*uieren en e ?uter A,desperdi&ianda menr &antidad de dire&&inespsibes

a. D31b. D30&. D2Fd. D2Be. J/29

. D2;4. -Cues sn as #entaas *ue e prpr&ina C/(? a una red6!ia ds p&ines8.a. Jtama>o reducido de la ta%la deenrutamientob. asina&i'n de dire&&inesdinmi&as&. redistribu&i'n de ruta autmti&ad.Jtrfico de actuali)acin de enrutamiento reducidoe. resumenautmti& en s brdes &n &ase:. e re*uiere una subredadi&ina para un nue# ena&e !thernet entre ?uter1 y?uter2,

&m se indi&a en e diarama. -Cu de as siuientesdire&&ines de subred se puede

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&niurar en esta red para suministrar una &antidad m"imade 14 dire&&ines utiiabes paraeste ena&edesperdi&iand a menr &antidad de dire&&inespsibe

a. 1F2.1.1.1;D2;b. 1F2.1.1.F;D2B&. 1F2.1.1.1;0D2Bd.1F2.1.1.1F;D27

e. J1&2.1.1.225/2'1F2.1.1.240D2B;. >n ruter tiene unaruta de resumen ha&ia a red 1F2.1;B.32.0D20 instaada en su tabade

enrutamient. -9u) ran de redes resume esta rutaa. 1F2.1;B.0.0 O1F2.1;B.32.0D24b. 1F2.1;B.0.0 O 1F2.1;B.47.0c. J1&2.13'.42.01&2.13'.59.0/25d. 1F2.1;B.32.0 O 1F2.1;B.4B.0D24e.1F2.1;B.32.0O 1F2.1;B.;3.0D24.7. Cnsute a presenta&i'n. -9u) ms&ara desubred se api&ar si e ?uter A en#$a una

a&tuaia&i'n ?/#1 para a red 172.1;.1.0 a ?uter Ea.Ninunb. B

&. 1;d.J25B. -9u) es una superreda. a red para una rutapredeterminadab. una red *ue &ntiene tant dire&&inespri#adas &m p5bi&as&. un &nunt de redes n&ntiuas &ntradas pr un /d. Juna sumari)acin de (arias redes!" con clase en un rango de direcciones !"F. Cnsute apresenta&i'n. ! administradr de red *uiere &rear una subredpara a &ne"i'n

punt a punt entre s ds ruters. -Cu de as siuientes ms&arasde subredprpr&inar$a sui&ientes dire&&ines para eena&e punt a punt &n e m$nim dedire&&inesdesperdi&iadas

a. 2::.2::.2::.1F2b. 2::.2::.2::.224&. 2::.2::.2::.240d.2::.2::.2::.24Be. J288.288.288.282.10. Cnsute a presenta&i'n.!n a presenta&i'n est enumerad e n5mer de dire&&inesde

hst re*uerids para &ada subred en una red. !ste n5merin&uye s re*uisits de dire&&i'nde hst para tds s puertsde ruter y hsts en esa subred. (espu)s dedeterminar tdas asasina&ines de s dispsiti#s y de as dire&&ines de puertde ruter,-&u ser e n5mer tta de dire&&ines de hstdispnibes *ue n se utiian

a. ;b. 14c. J2&d. 34

e. 40. ;211. !n a red *ue se iustra en e ri&, se pidiernprestads tres bits a a pr&i'n de hst de

una dire&&i'n Case C. -c*ntas dire&&ines de hst#idas n se utiiarn en s tresena&es punt a punt &mbinads sin se usa V+@

a. 3b. 4&. 12d. 3;

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CCNA 2 Chapter 7 2011 V4.0 Answers

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1./ network adinistrator has been told that the copan" I!address

infrastructure ust adhere to R:& 131. #hat three I! addressranges

fro R:& 131 could the adinistrator use on the network?%&hoose

three.'

10.0.0.0+-12:.0.0.0+-

17,.254.0.0+17

1:2.17.0.0+12

1,2.17-.0.0+17

20,.175.201.0+2:

2.

Refer to the exhibit. Routers 9ast and #est are configured usingRI!v1.

8oth routers are sending updates about their directl" connectedroutes.

The 9ast router can ping the #est router serial interface and#est can

ping the serial interface of 9ast. )owever, neither router hasd"naicall"

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learned routesfro the other. #hat is ost likel" the proble?

A "atewa) of last resort is require.

Su#nettin" is not supporte #) &'!1.

VS/ is not supporte #) &'!1.

One of the routers nees a cloc$ rate on the serialinterface.

$.

Refer to the exhibit. #hat effect will the coands that are shownhave

on RI! updates for Router1?

Onl) !ersion 2 upates are sent to 255.255.255.255.

Onl) !ersion 2 upates are sent to 224.0.0.,.

9oth !ersion 1 an !ersion 2 upates are sent to 224.0.0.,.

9oth !ersion 1 an !ersion 2 upates are sent to255.255.255.255.

(.

Refer to the exhibit. #hat can be concluded fro the output shownin

theexhibit?

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The routin" ta#le is limite to 2 routes.

The AN interfaces are participatin" in the routin" process.

One upate has #een sent out of each serial interface an 2 ha!e#een recei!e.

The no auto

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15.#hat are two functions of the network coand used when

configuringrouting protocols? %&hoose two.'

ientifies which networ$s will #e inclue in the routin"upates

ientifies the hosts aresses that can #e summariDe in thenetwor$

use to list all aresses for remote an local networ$s

etermines which su#net mas$ to appl) to routin" upates

etermines which interfaces can sen an recei!e routin" upates

11.

Refer to the exhibit. /ll routers are running RI!v1. #hatchanges will

occur in the routing table of router 8 if a loopback interfacewith an

address of 15.1-.1.1232 is configured on router 8?

outes to the 10.17.1.0+2:6 10.17.1.74+2:6 an 10.17.1.12-+2:networ$s are ae.

A connecte route to the 10.17.1.12-+2: networ$ is ae.

A thir route to the 10.0.0.0+- networ$ with &'!1 as thesource is ae.

The 10.0.0.0+- route is roppe immeiatel) from the routin" ta#leafter router 9 isconfi"ure.

12.

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Refer to the exhibit. The exhibited network contains a ixture of&isco and

non7&isco routers. The coand debug ip rip was entered on theF/J

router. /ll routers are running the sae version of RI!. Router&)I and

Router +R0 are not able to reach the 132.1-.1.1-2 network. #hatis a

possible solution to this proble?

(na#le split horiDon in the networ$.

Confi"ure &'!2 on routers.

A networ$ 1,2.17-.1.0 to the &' confi"uration on the PArouter.

Confi"ure PA *a0+0 as a passi!e interface.

(na#le the Serial0+0+0 interface on the PA router.

Chan"e the &' aress on the *a0+0 interface of the PA routerto 1,2.17-.1.1+24.

1-.#hat field was added to the RI! essage header b" R:& 12$to add

support for

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Refer to the exhibit. #hich coand on which router will allowRouter1

to learn about the 132.1-.5.525 network?

outer1;confi"=> ip classless

outer1;confi" no passi!e

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CCNA2 Examen 7 Corregido1 -Cues sn ds ranes para impementar ?/,#ersi'n 2, en uar de ?/, #ersi'n 1 6!ia ds

p&ines8.

J -!" (ersin 2 admite @L

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J e agrega una ruta conectada a la red 10.13.1.12'/29.

e area una ter&era ruta a a red 10.0.0.0DB &n ?/#1&m e rien.

+a ruta 10.0.0.0DB se des&ne&ta inmediatamente de a tabade enrutamient despu)s de *ue se&niura e ruter E.

8

Cnsute a presenta&i'n. +s ?uters !ast y Mest se &niuranusand e ?/#1. Ambs ruters en#$ana&tuaia&ines sbre sus rutasdire&tamente &ne&tadas. ! ruter !ast puede ha&erpin a a interaseria de ruter Mest y e ruter Mest puede ha&erpin a a intera seria de !ast. in embar, ninunde s ruters aprendi'de rma dinmi&a de tr. -Cu es psibemente e prbema

e re*uiere una ateway de 5tim re&urs.

! ?/#1 n admite a di#isi'n de redes.

J El -!"(1 no admite @Ln de s ruters ne&esita unare&uen&ia de re en a intera seria.

9 e e ha si&itad a un administradr de red *ue ainraestru&tura de a dire&&i'n / de a &mpaH$adebe&umpir &n ?

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Cnsute a presenta&i'n. ?/#1 est &niurad &m eprt& de enrutamient en a red *ue semuestra. !n &ada ruter,se utiian s siuientes &mands

router ripnet#orC 10.0.0.0net#orC 192.13.0.0

Cuand esta &niura&i'n est &mpeta, s usuaris en a +ANde &ada ruter n estn habiitads

para a&&eder a as +AN remtas. -r *u)

+as senten&ias de red estn &niuradas de manerain&rre&ta.

e ha &read un rutin p.

J -!"(1 no puede enrutar hacia las redes discontinuas de una redprincipal.

?/#1 n puede enrutar redes &n una ms&ara de subredD24.

1

1

Cnsute a presenta&i'n. -9u) &mand e permitir a ?uter2aprender de a red 1F2.1;B.1;.0D2B

?uter16&ni8 ip classless

J -outer1configrouter net#orC 1&2.13'.13.0

?uter16&ni=ruter8 no passi(einterface serial 0/1/1

?uter26&ni=ruter8 (ersion 2

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Cnsute a presenta&i'n. i tds s ruters estn ee&utand ?/#ersi'n 2, -pr *u) n hay una rutapara a red 1F2.1;B.1.32D27

?/ #ersi'n 2 n en#$a as ms&aras de subred en susa&tuaia&ines.

! ?uter A n est &niurad &n ?/ &m un prt& deenrutamient.

J -!" (ersin 2 autoresumir las rutas por defecto.

! ?uter E n est &niurad para pubi&ar a red1F2.1;B.1.;4D30.

1

5

-Cu es e dimetr de red m"im permitid pr a m)tri&a prdee&t de ?/#2

J 18 saltos

1; sats

100 sats

120 sats

2:: sats

1

6

Cnsute a presenta&i'n. >n t)&ni& debe arear unanue#a intera pba&K para prbar aun&inaidad de enrutamient ye diseH de red. ! t)&ni& inresa e siuiente &nunt de&mandsen e ruter

anrd6&ni8 interface loop%acC1anrd6&ni=i8 ip address1&2.13'.3.32 288.288.288.282

-r *u) e ruter respnde &n un errr

! ruter n permite &niura&ines de intera pba&K.

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Cnsute a presenta&i'n. ds s ruters estn ee&utand ?/#ersi'n 2. JAL est &niurad parapubi&ar s' a red10.0.0.0D24. CI/ est &niurad para pubi&ar a red172.1;.0.0D1;. >nadministradr de red inresa s &mands *ue semuestran en a presenta&i'n. -9u) &ambis seprdu&irn enesta red

! ruter JAL inrar as a&tuaia&ines para a red172.1;.0.0D1; pr &uestines de hrintedi#idid.

J El router *I! instalar una ruta a la red 1&2.13'.0.0/13 enla ta%la de enrutamiento.

+a taba de enrutamient de CI/ tendr a ruta 1F2.1;B.0.0D1; pertendr una unt a a ruta.

El router ORL aplicar una mscara de subred 255.255.0.0 a todaslas redes en las actualizaciones de enrutamiento

que reenve.

2

?ei)rase a bet e"puest. -Cu ds de&ara&ines sn #erdaderas6!s&a ds.8

J-outer1 instalar una ruta a 1&2.13'.0.0/20

?uter1 instaar una ruta a 1F2.1;B.0.0D24

?uter1 instaar una ruta a 1F2.1;B.1;.0D24

?uter2 instaar una ruta a 1F2.1;B.1;.0D24

J -outer2 no instalar una ruta a 1&2.13'.13.0/20

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a le!el 2 chil route

a le!el 2 ultimate chil route

-.#hat deterines if the router ipleents a classless routelookup

process?

Chil routes are present in the routin" ta#le.

A classless routin" protocol has #een confi"ure on therouter.

The comman ip classless is ena#le on the router.

/ultiple routes with ifferent mas$s to the same estination arein the routin" ta#le.

outin" ta#le entries ha!e a net

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Refer to the exhibit. Router1 is running I+ version 12.2. #hatwill the

network adinistrator need to do so that packets for unknown

child routes of 12.1-.5.52( will not be dropped?

issue the ip efault

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255.255.0.0

255.255.255.0

255.255.255.255

1-.

Refer to the exhibit. The network adinistrator has discoveredthat

packets destined for servers on the 12.1-.2*(.5 network arebeing

dropped b" Router2. #hat coand should the adinistrator issueto

ensure that these packets are sent out the gatewa" of lastresort, erial

551?

ip classless

no ip classless

ip efault

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searches for a efault route to forwar the pac$et

rops the pac$et since the static route oes not ha!e an eitinterface

performs a recursi!e loo$up to fin the eit interface use toforwar the pac$et

sens a request to nei"h#orin" routers for the location of the12-.10:.0.0 networ$

1.#hat occurs when no ip classless is ipleented on therouter?

The router will onl) support classful &' aressin".

The router will onl) support classful routin" protocols.

The router will use a efault route6 if present6 when a matchin"route is not foun in

theroutin" ta#le.

The router will assume it has $nowle"e of all su#nets in thenetwor$ an will not

search #e)on chil routes for a #etter match.

13./ route to a destination network is learned fro

ultiple routing protocols. #hat is used b" a &isco router toselect the

preferred route to the destination that will be installed in

the routing table?

metric

route prefi

upate timer

aministrati!e istance

(ste eQmen esta al ,4%6 recueren tomenlo como fuente e estuioasi apreneran mas.

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CCNA 2 Chapter F 2011 V4.0 Answers

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1.#hat two actions will the 9I=R! 4/0 :6 take if a link to anetwork

goes down? %&hoose two.'

put the route into passi!e moe

quer) nei"h#ors for a new route

search routin" ta#le for a feasi#le successorrun the S'*al"orithm to fin a new successor

search topolo") ta#le for a feasi#le successor

2.

)ost 132.1-.1.-- in the network illustrated is unable to pinghost

132.1-.1.1$5. )ow ust 9I=R! be configured to

enable connectivit" between the two hosts? %&hoose two.'

1;confi" network 132.1-.1.12

1;confi"auto7suar"

1;confi" no auto7suar"

2;confi" no auto7suar"2;confi" auto7suar"

2;confi" network 132.1-.1.-(

$.

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Refer to the exhibit. The copan" is using 9I=R! with

an autonoous s"ste nuber of 15. !ings between hosts onnetworks

that are connected to router / and those that are connected torouter 8 are

successful.)owever, users on the 132.1-.$.5 network are unableto reach users on

the 132.1-.1.$2 network. #hat is the ost likel" cause of thisproble?

&' classless is ena#le an is causin" the pac$et to rop.

The comman networ$ 1,2.17-.1.82 was not issue on router C.

The routers are not confi"ure in the same (&B' routin"omain.

Automatic summariDation of the networ$s is causin" the su#netteroutes to #e

roppe.

(.#hat inforation is aintained in the 9I=R! topolog" databasefor a

destination route? %&hoose three.'

the routin" protocol

the feasi#le istance of the route

the hi"hest cost of the route

the STT !alue for the route

the route cost as a!ertise #) the nei"h#orin" router

the ph)sical aress of the "atewa) interface

*. +n a router running 9I=R!, what database would aintain a listof

feasible successors?routin" ta#le

nei"h#or ta#le

topolo") ta#le

aGacenc) ta#le

-.

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Refer to the exhibit. #hat is indicated b" the ! at thebeginning of the

topolog" entr"?

the route is in a sta#le state

the route is a preferre route

@A is searchin" for a #etter route to this estination

the eit interface is in passi!e moe an (&B' a!ertisem*ntsare #loc$e

.In the coand router eigrp 25, what is the purpose of the nuber25?

specifies the aministrati!e istance for all (&B'routesientifies the autonomous s)stem num#er this (&B' processwill a!ertise

etermines what metric is ae to all a!ertise routes

inicates the num#er of aresses in the (&B' routin" omain

.

Refer to the exhibit. In the topolog" table, what do the nubers$511(5

and $12-3* represent?

the route metric that is applie to those (&B' routes forthis router

the trustworthiness of the routin" information source

the composite of the hop count an #anwith to that estinationnetwor$

the total metric for that networ$ as a!ertise #) the (&B'nei"h#or

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3.#hich two stateents describe characteristics of 9I=R!?%&hoose two.'

(&B' is a istance !ector routin" protocol.

(&B' supports classless routin" an VS/.

(&B' is classifie as a lin$

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will packets take fro the 12.1-.1.51- network to the132.1-.255.52(

network?

A696(

A6C6(

A6@6(

'ac$ets will loa #alance across the A696( an A6C6( paths.

'ac$ets will loa #alance across the A696( an A6@6( paths.

'ac$ets will loa #alance across the A6C6( an A6@6( paths.

1.8" default, which two etrics are used b" 9I=R! to deterine thebest

path between networks?

/T

loa

ela)

#anwith

relia#ilit)

13.#hich of the following stateents describes the boundedupdates used

b" 9I=R!?

9oune upates are sent to all routers within an autonomouss)stem.

'artial upates are sent onl) to routers that nee theinformation.

The upates are sent to all routers in the routin" ta#le.

pates are #oune #) the routers in the topolo") ta#le.

25. The show ip eigrp topolog" coand output on a router displa"sa

successor route and a feasible successor route to network132.1-.1.52(.

In order to reduce processor utiliCation, what does 9I=R! dowhen the

priar" route to this network fails?

The router sens quer) pac$ets to all (&B' nei"h#ors for a#etter route to networ$

1,2.17-.1.0+24.

The @A *S/ immeiatel) recomputes the al"orithm to calculate thenet #ac$up

route.

'ac$ets that are estine for networ$ 1,2.17-.1.0+24 are sent outthe efault

"atewa)instea.

The #ac$up route to networ$ 1,2.17-.1.0+24 is installe in theroutin" ta#le.

21.

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Refer to the exhibit. 8ased on the output of show ip eigrpneighbors, what

are two possible probles with ad;acencies between Router1 andRouter2?

%&hoose two.'

The routers are confi"ure with ifferent (&B' process&@s.Automatic summariDation was isa#le.

The hello timer for 1 was altere.

The serial interfaces for #oth routers are in ifferentnetwor$s.

No feasi#le successors were foun.

22.

Refer to the exhibit. This is the debug output fro 2

directl" connected 9I=R! routers. The" are not foring anad;acenc".

#hat is the cause?one router is a non

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Examen CCNA2 v4.0 Captulo 10

E,amen **?2 (5.0 *apBtulo 10

1 -Cues sn as #entaas de usar un prt& de enrutamient deinK=state en uar de un

#e&tr distan&ia 6!ia ds p&ines8.a. +a base de datsde tp$a eimina a ne&esidad de una taba de enrutamient.%. J*adarouter determina de manera independiente la ruta a cada red.&.+s prt&s de inK=state re*uieren menr pten&ia depr&esadr de ruter *ue s

prt&s #e&tr distan&ia.d. J=espus de la inundacin L"inicial6 generalmente requieren menos ancho de %anda

para comunicar cam%ios en una topologBa.e. e en#$ana&tuaia&ines peri'di&as re&uentes para minimiar a&antidad de rutas

in&rre&tas en a base de dats tp'i&a.2 A unadministradr de red se e asina a tarea de see&&inar unprt& de enrutamientdinmi& aprpiad para una &mpaH$a dedesarr de stware. +a &mpaH$a psee ms de100 ruters, utiia C/(? yV+@, re*uiere &n#eren&ia rpida y utiia e*uips Cis& ytrs

*ue n sn Cis&. -9u) prt& de enrutamient es ade&uadpara esta &mpaH$aa. ?/ #ersi'n 2b. /?&. !/?d. JA"Fe. E

3 Cnsute a presenta&i'n. -9u) tip de inrma&i'n se #er$aen un + en#iad desde eruter JAL a ruter A+

a. &nte de satsb. tiemp de a&ti#idad de a rutac. Jcostodel enlaced. una ista de tds s prt&s de enrutamient en us

4 Cnsute a presenta&i'n. Cuand se &niura e ?uter ( parautiiar un prt& de

enrutamient de estad de ena&e y se area a a red, -*u) esprimer *ue ha&e para&menar a aprender a tp$a de red

a. !n#$a s pa*uetes + a s ?uters E y C.b. !n#$a s pa*uetes + atds s ruters en a red.&. !n#$a s pa*uetes de saud a tds sruters en a red.d. !n#$a inrma&i'n sbre sus #e&insdire&tamente &ne&tads a s ?uters A y !.e. !n#$ainrma&i'n sbre sus #e&ins dire&tamente &ne&tadsa tds s ruters en a red.f. Jprende so%re las redes directamenteconectadas cuando las interfaces alcan)an el

estado de completo.: -9u) aritm ee&utan s prt&s deenrutamient de estad de ena&e para &a&uara ruta ms&rta ha&ia as redes de destin

a. (>A+%. J=i+Cstra

&. Eeman=

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b. taba de adya&en&iac. J%ase de datos de estado deenlaced. taba de #e&ine. base de dats de tp$a

1: -9u) ds prt&s de enrutamient utiian e primer aritm deruta ms &rta de(iKstra. 6!ia ds p&ines8.

a. ?/#1b. ?/#2c. J!!d. Ee. !/?f. JA"F

1; -Cu es e 5tim pas en e pr&es de enrutamient de estad deena&ea. s su&esres se &&an en a taba deenrutamient%. J"F calcula la me+or ruta a cada red destino&. +s+ se inundan ha&ia tds s #e&ins para &n#erer a redd. !aritm (>A+ se ee&uta para haar a mer ruta ha&ia as redesde destin

17 -Cues sn as airma&ines *ue des&riben&rre&tamente e pr&es de enrutamient deinK=state 6!ia dsp&ines8.

a. Jtodos los routers en el rea tienen %ases de datos delinCstate%. Jcada router en el rea inunda los L" hacia todos los(ecinos&. s + utiian a dire&&i'n muti&ast reser#adade 224.0.0.10 para a&anar s #e&insd. s rutin ps se e#itan aee&utar e aritm de a&tuaia&i'n diusa 6(>A+8e. ert& de ransprte Cniabe 6?8 es e prt& utiiad para e en#$ ya

re&ep&i'n de +1B -9u) a&&i'n tma inmediatamenteun ruter de estad de ena&e a re&ibir un + de unruter#e&in

a. Jsatura el L" a los (ecinosb. &a&ua e aritm ip route5.5.5.5 5.5.5.5 serial 555

outer9;confi"=> ip route 5.5.5.5 5.5.5.5 12.1-.-.-

outer9;confi"=>router ospf 15

outer9;confi" default7inforation originate

outer9;confi"=> router ospf 15

outer9;confi" default7network 12.1-.-.- 5.5.5.$ area 5

outer9;confi"=>ip route 5.5.5.5 5.5.5.5 12.1-.-.-

outer9;confi"=>ip default7route 5.5.5.5 5.5.5.5 12.1-.-.-

outer9;confi"=> router ospf 15

outer9;confi" redistribute ip default7route

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1.#hich two stateents describe the use of +!: 4R84Relections?

%&hoose two.'

(lections are alwa)s optional.

(lections are require in all AN networ$s.

(lections are require in point

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21.

Refer to the exhibit. #hat ust be received between neighbors toprevent

the dead tie that is shown in the exhibit fro reaching Cero?

an) traffic throu"h the router interfaces

routin" ata#ase upates

hello pac$ets

9'@ pac$ets

22.

Refer to the exhibit. #hat does the K+M92L fro the K+M925.5.5.55

@1151A via 132.1-.1.1, 55>5*>$(, erial55L linerepresent?

an internal t)pe 2 OS'* route.

an eternal OS'* route at least two hops awa).

an eternal OS'* route from two ifferent sources.

an eternal OS'* route that will not increment in cost.

a efault route.

The route was istri#ute into OS'* from a t)pe 2 router.2$.

Refer to the exhibit. #hich network coand or set of coandswill

cause +!: to be enabled for an" R1 interface connected to theexhibited

subnets?

1;confi" network 15.5.5.5 5.5.5.5 area 51;confi" network15.1.5.5 5.5.5.2** area 5 1;confi" network 15.1.1.5 5.5.5.2** area5 1;confi" network

15.1.2.( 5.5.5.$ area 5

1;confi" network 15.1.5.5 5.5.5.2** area 5

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1;confi" network 15.2.5.5 5.5.5.2** area 5

1;confi" network 15.5.5.5 5.5.2**.2** area 5

2(.

Refer to the exhibit. #hat is the cost of the route to the15.5.5.5 network?

2

110

1:-7

1.5442*.#hat three paraeters ust be indentical between +!:routers in

order to for an ad;acenc"? %&hoose three.'

area i

R

metric !alue

hello inter!al

networ$ t)pe

interface t)pe

1 Cnsute a presenta&i'n. -9u) senten&ias de&niura&i'n darn s resutads *ue se

muestran en e resutad de &mand shw ip prt&s

a. E6&ni8 int a0D0

E6&ni=i8 ruter=id 1F2.1;B.1.:

b. E6&ni8 int 0

E6&ni=i8 ip address 1F2.1;B.1.:

c. J7config router ospf 1

7configrouter routerid 1&2.13'.1.8

d. E 6&ni8 ruter sp 1

E6&ni=ruter8 ip address 1F2.1;B.1.:

2 Cnsute a presenta&i'n. -9u) es *ue se debe re&ibirentre #e&ins para e#itar *ue e

tiemp muert *ue se muestra en a presenta&i'n eue a&er

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a. &ua*uier tri& a tra#)s de as intera&es de sruters

b. as a&tuaia&ines de a base de dats de enrutamient

c. Jlos paquetes de saludo

d. s pa*uetes E(>

3 Cnsute a presenta&i'n. -c*ntas adya&en&ias G<se deben rmar para &rear a

tp$a &mpeta si n ueran eeids un (? E(? en esta red G

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&. ruter de dmini

d. ruter de dmini de respad

e. Jrouter designado

f. Jrouter designado de respaldo

F Cnsute a presenta&i'n. -9u) representa SGR!2S en a $neaSGR!2 0.0.0.0D0 T110D1U #ia

1F2.1;B.1.1, 000:34, eria0D0Sa. una ruta G< tip 2interna.

b. una ruta G< e"terna a ds sats de distan&ia &mm$nim.

&. una ruta G< e"terna desde ds r$enes dierentes.

d. Juna ruta A"F e,terna que no se incrementar en costo.

e. una ruta pr dee&t.

. +a ruta se distribuy' en G< desde un ruter tip 2.

10 Cnsute a presenta&i'n. -9u) se&uen&ia de&mands de ?uterE redistribuye a

ateway de 5tim re&urs a s trs ruters de G< rea 0

a. ?uterE6&ni8 ruter sp 10

?uterE6&ni=ruter8 ateway==ast=resrt 172.1;.;.;

b. ?uterE6&ni8 ip rute 0.0.0.0 0.0.0.0 seria 0D0D0c.J-outer7config ip route 0.0.0.0 0.0.0.0 192.13.3.3

-outer7config router ospf 10

-outer7configrouter defaultinformation originate

d. ?uterE6&ni8 ruter sp 10

?uterE6&ni=ruter8 deaut=netwrK 172.1;.;.; 0.0.0.3 area 0

e. ?uterE6&ni8 ip rute 0.0.0.0 0.0.0.0 172.1;.;.;

. ?uterE6&ni8 ip deaut=rute 0.0.0.0 0.0.0.0 172.1;.;.;

?uterE6&ni8 ruter sp 10

?uterE6&ni=ruter8 redistribute ip deaut=rute

11 Cnsute a presenta&i'n. ! ?uter1 y e ?uter2 estnee&utand Gna red G< de &in& ruters &mpetamente&n#erentes se ha ee&utad &n )"it

durante #arias semanas. das as &niura&ines se han uardady n se utiian rutas

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estti&as. i un ruter se apaa y se reini&ia, -*u)inrma&i'n habr en a taba de

enrutamient despu)s de *ue e ar&hi# de &niura&i'n se&arue per antes de *ue Gna ruta de resumen para tdas as redesaprendidas anterirmente apare&er

autmti&amente en a taba de enrutamient hasta *ue e ruterhaya re&ibid tds s +.

14 Cnsute a presenta&i'n. ! ?uter A est &rre&tamente&niurad para G

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%. J-outer ser el =- para 10.5.0.0/13.

c. JIO ser el 7=- para 10.5.0.0/13.

d. ?uter A ser e (? para 10.:.0.0D1;.

e. J-emoto ser el =- para 10.8.0.0/13.

. ?emt ser e E(? para 10.:.0.0D1;.