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NewCCNAFrameRelaySeptember27th,2013Gotocomments

Note:IfyouarenotsureaboutFrameRelay,pleasereadourFrameRelayTutorial.

Question1

TheoutputoftheshowframerelaypvccommandshowsPVCSTATUS=INACTIVE.Whatdoesthismean?

A.ThePVCisconfiguredcorrectlyandisoperatingnormally,butnodatapacketshavebeendetectedformorethanfiveminutes.B.ThePVCisconfiguredcorrectly,isoperatingnormallyandisnolongeractivelyseekingtheaddresstheremoteroute.C.ThePVCisconfiguredcorrectly,isoperatingnormallyandiswaitingforinterestingtotriggeracalltotheremoterouter.D.ThePVCisconfiguredcorrectlyonthelocalswitch,butthereisaproblemontheremoteendofthePVC.E.ThePVCisnotconfiguredontheswitch.

Answer:D

Explanation

ThePVCSTATUSdisplaysthestatusofthePVC.TheDCEdevicecreatesandsendsthereporttotheDTEdevices.Thereare4statuses:

+ACTIVE:thePVCisoperationalandcantransmitdata+INACTIVE:theconnectionfromthelocalroutertotheswitchisworking,buttheconnectiontotheremoterouterisnotavailable+DELETED:thePVCisnotpresentandnoLMIinformationisbeingreceivedfromtheFrameRelayswitch+STATIC:theLocalManagementInterface(LMI)mechanismontheinterfaceisdisabled(byusingthenokeepalivecommand).Thisstatusisrarelyseensoitisignoredinsomebooks.

Question2

Whichcommandallowsyoutoverifytheencapsulationtype(CISCOorIETF)foraframerelaylink?



A.showframerelaymapB.showframerelaylmiC.showinterserialD.showframerelaypvc

Answer:A

Explanation

Theshowframerelaymapcommanddisplaysthecurrentmapentriesandinformationabouttheconnections,includingencapsulationtype.

YoucancheckTable33inthefollowinglink:http://www.cisco.com/en/US/docs/ios/12_2/wan/command/reference/wrffr4.html#wp1029343

ItclearlystatesthereisaFieldwhichcanbeCiscoorIETF,whichindicatestheencapsulationtypeforthismap.WequotethatTable33hereforyourquickreference(youwillseewhatwewanttoimplyinbold):

Field DescriptionSerial1(administrativelydown)

IdentifiesaFrameRelayinterfaceanditsstatus(upordown).

ip131.108.177.177 DestinationIPaddress.

dlci177(0xB1,0x2C10)

DLCIthatidentifiesthelogicalconnectionbeingusedtoreachthisinterface.Thisvalueisdisplayedinthreeways:itsdecimalvalue(177),itshexadecimalvalue(0xB1),anditsvalueasitwouldappearonthewire(0x2C10).

static Indicateswhetherthisisastaticordynamicentry.CISCO IndicatestheencapsulationtypeforthismapeitherCISCOorIETF.TCP/IPHeaderCompression(inherited),passive(inherited)

IndicateswhethertheTCP/IPheadercompressioncharacteristicswereinheritedfromtheinterfaceorwereexplicitlyconfiguredfortheIPmap.

TheshowframerelaylmigivesusinformationabouttheLMIencapsulationtypeusedbytheFrameRelayinterface,whichcanbeANSI,CISCOorQ933a.Thereforeitisnotwhatthequestionrequires(CISCOorIETF).

Question3

Refertotheexhibit.WhichstatementdescribesDLCI17?



A:DLCI17describestheISDNcircuitbetweenR2andR3.B:DLCI17describesaPVConR2.ItcannotbeusedonR3orR1.C:DLCI17istheLayer2addressusedbyR2todescribeaPVCtoR3.D:DLCI17describesthedialupcircuitfromR2andR3totheserviceprovider.

Answer:C

Explanation

DLCIstandsforDataLinkConnectionIdentifier.DLCIvaluesareusedonFrameRelayinterfacestodistinguishbetweendifferentvirtualcircuits.DLCIshavelocalsignificancebecausetheidentifierreferencesthepointbetweenthelocalrouterandthelocalFrameRelayswitchtowhichtheDLCIisconnected.

Question4

UsershavebeencomplainingthattheirFrameRelayconnectiontothecorporatesiteisveryslow.Thenetworkadministratorsuspectsthatthelinkisoverloaded.BasedonthepartialoutputoftheRouter#showframerelaypvccommandshowninthegraphic,whichoutputvalueindicatestothelocalrouterthattrafficsenttothecorporatesiteisexperiencingcongestion?

A.DLCI=100



B.lasttimePVCstatuschanged00:25:40C.inBECNpackets192D.inFECNpackets147E.inDFpackets0

Answer:C

Explanation

FirstweshouldgrasptheconceptofBECN&FECNthroughanexample:

SupposeRouterAwantstosenddatatoRouterBthroughaFrameRelaynetwork.Ifthenetworkiscongested,Switch1(aDCEdevice)willsettheFECNbitvalueofthatframeto1,indicatingthatframeexperiencedcongestioninthepathfromsourcetodestination.ThisframeisforwardedtoSwitch2andtoRouterB(withtheFECNbit=1).

Switch1knowsthatthenetworkiscongestingsoitalsosendsframesbacktoRouterAwithBECNbitsetto1toinformthatpaththroughthenetworkiscongested.

Ingeneral,BECNisusedonframestravelingawayfromthecongestedareatowarnsourcedevicesthatcongestionhasoccurredonthatpathwhileFECNisusedtoalertreceivingdevicesiftheframeexperiencescongestion.

BECNalsoinformsthetransmittingdevicestoslowdownthetrafficabituntilthenetworkreturnstonormalstate.

Thequestionaskswhichoutputvalueindicatestothelocalrouterthattrafficsenttothecorporatesiteisexperiencingcongestionwhichmeansitasksaboutthereturnedparameterwhichindicatescongestion>BECN.

Question5



WhatoccursonaFrameRelaynetworkwhentheCIRisexceeded?

A.AllTCPtrafficismarkeddiscardeligible.B.AllUDPtrafficismarkeddiscardeligibleandaBECNissent.C.AllTCPtrafficismarkeddiscardeligibleandaBECNissent.D.AlltrafficexceedingtheCIRismarkeddiscardeligible.

Answer:D

Explanation

Committedinformationrate(CIR):TheminimumguaranteeddatatransferrateagreedtobytheFrameRelayswitch.FramesthataresentinexcessoftheCIRaremarkedasdiscardeligible(DE)whichmeanstheycanbedroppedifthecongestionoccurswithintheFrameRelaynetwork.

Note:IntheFrameRelayframeformat,thereisabitcalledDiscardeligible(DE)bitthatisusedtoidentifyframesthatarefirsttobedroppedwhentheCIRisexceeded.

Question6

WhatcommandisusedtoverifytheDLCIdestinationaddressinaFrameRelaystaticconfiguration?

AshowframerelaypvcB.showframerelaylmiC.showframerelaymapD.showframerelayendtoend

Answer:C

Question7

Router1#showrunningconfig

interfaceserial0/0bandwidth64ipaddress172.16.100.2255.255.0.0encapsulationframerelayframerelaymapip172.16.100.1100broadcast

Asatechnician,youfoundtherouter1isunabletoreachthesecondrouter.BothroutersarerunningIOSversion12.0.



Basedonthisinformation,whatisthemostlikelycauseoftheproblem?

A.incorrectIPaddressB.incorrectbandwidthconfigurationC.incorrectmapstatementD.incorrectLMIconfiguration

Answer:C(Infactnoneiscorrect)

Explanation

Firstwehavetosaythisisanunclearquestionanditiswrong.Theframerelaymapipstatementiscorrectthusnoneofthefouranswersaboveiscorrect.Butweguessthereisatypointheoutput.Maybetheipaddress172.16.100.2255.255.0.0commandshouldbeipaddress172.16.100.1255.255.0.0.ThatmakesanswerCcorrect.

Question8

Refertotheexhibit.Whatisthemeaningofthetermdynamicasdisplayedintheoutputoftheshowframerelaymapcommandshown?

A.TheSerial0/0interfaceispassingtraffic.B.TheDLCI100wasdynamicallyallocatedbytherouterC.TheSerial0/0interfaceacquiredtheIPaddressof172.16.3.1fromaDHCPserverD.TheDLCI100willbedynamicallychangedasrequiredtoadapttochangesintheFrameRelaycloudE.ThemappingbetweenDLCI100andtheendstationIPaddress172.16.3.1waslearnedthroughInverseARP

Answer:E

Explanation

ThetermdynamicindicatesthattheDLCInumberandtheremoterouterIPaddress172.16.3.1arelearnedviatheInverseARPprocess.

InverseARPisatechniquebywhichdynamicmappingsareconstructedinanetwork,allowingadevicesuchasaroutertolocatethelogicalnetworkaddressandassociateitwithapermanentvirtualcircuit(PVC).

Question9

Refertotheexhibit.WhichWANprotocolisbeingused?



A.ATMB.HDLCC.FrameRelayD.PPP

Answer:C

Explanation

LocalManagementInterface(LMI)isasignalingstandardprotocolusedbetweenyourrouter(DTE)andthefirstFrameRelayswitch.FromtheoutputwelearnthisinterfaceissendingandreceivingLMImessages>FrameRelayisbeingused.

Question10

Thecommandframerelaymapip10.121.16.8102broadcastwasenteredontherouter.Whichofthefollowingstatementsistrueconcerningthiscommand?

A.Thiscommandshouldbeexecutedfromtheglobalconfigurationmode.B.TheIPaddress10.121.16.8isthelocalrouterportusedtoforwarddata.C.102istheremoteDLCIthatwillreceivetheinformation.D.ThiscommandisrequiredforallFrameRelayconfigurations.E.Thebroadcastoptionallowspackets,suchasRIPupdates,tobeforwardedacrossthePVC.

Answer:E

Explanation



Thecommandframerelaymapip10.121.16.8102broadcastmeanstomappingthedistalIP10.121.16.8102tothelocalDLCI102.Whenthebroadcastkeywordisincluded,itturnsFrameRelaynetworkasabroadcastnetwork,whichcanforwardbroadcasts.

Comments(91)CommentsCommentpagesPrevious121776

1. BroadcastJune23rd,2014

hey!checkoutmysiteforthelatestCCNAQuestions.ciscoexamz.blogspot.com

2. SinghJuly3rd,2014

ithinkQ2isCIdidthelabandverifiedthecommands.R3#shframerelaymapSerial2/1.200(up):pointtopointdlci,dlci200(0xC8,03080),broadcaststatusdefined,active

R1#shints1/1Serial1/1isup,lineprotocolisupHardwareisM8TX.21MTU1500bytes,BW1544Kbit/sec,DLY20000usec,reliability255/255,txload1/255,rxload1/255EncapsulationFRAMERELAYIETF,crc16,loopbacknotsetKeepaliveset(10sec)RestartDelayis0secs

3. SinghJuly3rd,2014

Q2isC.

R1#shints1/1Serial1/1isup,lineprotocolisupHardwareisM8TX.21MTU1500bytes,BW1544Kbit/sec,DLY20000usec,reliability255/255,txload1/255,rxload1/255EncapsulationFRAMERELAYIETF,crc16,loopbacknotsetKeepaliveset(10sec)RestartDelayis0secs

4. AnJuly4th,2014

Q7FromAcademy:ItiseasytoconfusetheLMIandencapsulation.TheLMIisadefinitionofthemessagesusedbetweentheDTE(R1)andtheDCE(theFrameRelayswitchownedbytheserviceprovider).EncapsulationdefinestheheadersusedbyaDTEtocommunicateinformationtothe



DTEattheotherendofaVC.TheswitchanditsconnectedroutercareaboutusingthesameLMI.Theswitchdoesnotcareabouttheencapsulation.Theendpointrouters(DTEs)docareabouttheencapsulation.

SoithinkthebestanswerisD

5. AnJuly4th,2014

Router1#showrunningconfiginterfaceserial0/0bandwidth64ipaddress172.16.100.2255.255.0.0



9. StrangeJuly16th,2014

Question3wasintheexamrecently

10. JulyJuly16th,2014

Q7IhadmyExamtodayandQ7wasintheExam.Themapstatementwasframerelaymapip172.16.100.1200broadcastwithaDLCIof200,not100!

11. MarcoJuly16th,2014

HelloJuly,Whichdumpsdidyouuse?

12. zaifiAugust29th,2014

howtocheckframerelayencapsulationeithershowframerelaymapnorshowintser1/0

isworkingforme.!!!!!!!!

Router#shointser1/0Serial1/0isup,lineprotocolisup(connected)HardwareisHD64570Internetaddressis192.168.100.1/24MTU1500bytes,BW128Kbit,DLY20000usec,reliability255/255,txload1/255,rxload1/255EncapsulationFrameRelay,loopbacknotset,keepaliveset(10sec)LMIenqsent64,LMIstatrecvd61,LMIupdrecvd0,DTELMIupLMIenqrecvd0,LMIstatsent0,LMIupdsent0LMIDLCI1023LMItypeisCISCOframerelayDTEBroadcastqueue0/64,broadcastssent/dropped0/0,interfacebroadcasts0Lastinputnever,outputnever,outputhangneverLastclearingofshowinterfacecountersneverInputqueue:0/75/0(size/max/drops)Totaloutputdrops:0Queueingstrategy:weightedfairOutputqueue:0/1000/64/0(size/maxtotal/threshold/drops)Conversations0/0/256(active/maxactive/maxtotal)ReservedConversations0/0(allocated/maxallocated)AvailableBandwidth96kilobits/sec5minuteinputrate0bits/sec,0packets/sec5minuteoutputrate0bits/sec,0packets/sec0packetsinput,0bytes,0nobufferReceived0broadcasts,0runts,0giants,0throttles0inputerrors,0CRC,0frame,0overrun,0ignored,0abort0packetsoutput,0bytes,0underruns0outputerrors,0collisions,2interfaceresets0outputbufferfailures,0outputbuffersswappedout



0carriertransitionsDCD=upDSR=upDTR=upRTS=upCTS=up

13. zaifiAugust29th,2014

however,

#showrunningconfig,commanddoshowsframerelayencapsulationtypeonaparticularinterface

#showrunoutputomitted!!!

interfaceSerial1/0ipaddress192.168.100.1255.255.255.0encapsulationframerelayietfframerelayinterfacedlci100!outputomitted!!!

14. RaniSeptember6th,2014

Q5&Q3in5thSep2014exam

15. HBSeptember16th,2014

Passedtodaywith958

Q7andQ8wasontest

thanx9tut

16. ramos1987September18th,2014

PASSMYEXAMTODAYSEPT171000/1000

Q1,Q10inexamtoday

17. AnonymousSeptember24th,2014

Greatstaffthanks

18. ImpartentSeptember28th,2014

TomorrowIhaveExam.Anyvalidsuggestionorupdateortips..

Itwouldbeappreciate.



19. AnonymousOctober4th,2014

[email protected]

20. NareshOctober20th,2014

Q1thestatusofPVC=INACTIVESotheoptionmustbeCnotDthePVCiscurrentlyconfiguredontherouter

21. NareshOctober20th,2014

sorrytheoptionforQ1willbeC

22. tanuOctober30th,2014

smbodyplselaboratetheansofqsn6

23. FaisalOctober31st,2014

CananyonepleaseconfirmtheanswerofQuestion2?IsitA.ShowframerelaymaporC.showinterserial?Iamgoingtositforexamwithin2days.Thanksinadvance.

24. VarunNovember1st,2014

@Faisal..Theanswerforthequestion2isA>Showframerelaymap

25. ferryNovember10th,2014

Naresh,

IjustsawyourcommentonQ1.Youaremistaken.

OptionCiswrong.ifyoureadtheoptiontotheend,ittalksabouttriggeracallbyinterestingtrafficetc.ThisconcernsswitchedcircuitconnectionslikeISDN.OptionDiscorrectanswer.

goodluck

26. ariaNovember10th,2014

q6today

27. ErikaNovember22nd,2014



Q4,Q10onexamyesterday

28. ipvcloudNovember24th,2014

Q2isB.Itistruethatpromptingtheshowinterfaceserial0/0forinstance,willshowuptheencapsulationtype,buttheanswerConlysaysshowinterfaceserial.

Ifyoupromptshowframerelaylmi,itwillshowyoutheTYPE.

IfIamwrong,pleasecorrectme.Thankyou.Charlotte#shframerelaylmi

LMIStatisticsforinterfaceSerial0/0(FrameRelayDTE)LMITYPE=CISCOInvalidUnnumberedinfo0InvalidProtDisc0InvaliddummyCallRef0InvalidMsgType0InvalidStatusMessage0InvalidLockShift0InvalidInformationID0InvalidReportIELen0InvalidReportRequest0InvalidKeepIELen0NumStatusEnq.Sent2272NumStatusmsgsRcvd2272NumUpdateStatusRcvd0NumStatusTimeouts0LastFullStatusReq00:00:45LastFullStatusRcvd00:00:45

29. RaghuNovember30th,2014

HiAll,

InQuestion2,OptionA&OptionCbotharecorrectandprovidetheFramerelayencapsulationdetails.ButprefertheoptionA.

30. jayDecember1st,2014

hiall,forQ2.9tutanswerisA.showframerelaymap

butlookatQ8itshowstheoutputoftheshowframerelaymapandtheresnoencapsulationtype

31. mohammedDecember2nd,2014

Iguesstheoutputinquestion7is:framerelaymapip172.16.100.1200broadcastinordertochooseanswerC

32. jamesDecember6th,2014