Cisco press CCNP BSCI official exam certification guide 4th edition jul 2007 ISBN 158720147x

CCNPBSCIOfficialExamCertificationGuide,
FourthEdition
byBrentD.Stewart;ClareGough-CCIENo.2893
Publisher:CiscoPress
PubDate:July18,2007
PrintISBN-10:1-58720-147-X
PrintISBN-13:978-1-58720-147-9
Pages:672
TableofContents|Index

Overview
CCNPBSCIOfficialExamCertificationGuide
FourthEdition
Masterall642-901examtopicswiththeofficialstudyguide
Assessyourknowledgewithchapter-openingquizzes
Reviewkeyconceptswithfoundationsummaries
PracticewithhundredsofexamquestionsontheCD-ROM
BrentD.Stewart
ClareGough,CCIE®No.2893
CCNPBSCIOfficialExamCertificationGuide,FourthEdition,isa
bestofbreedCisco®examstudyguidethatfocuses
specificallyontheobjectivesfortheBSCIexam.Successfully
passingtheBSCI642-901examcertifiesthatyouhavethe
knowledgeandskillsnecessarytouseadvancedIPaddressing
androutinginimplementingscalabilityforCiscointegrated
servicesrouters(ISR)connectedtoLANsandWANs.
CCNPBSCIOfficialExamCertificationGuide,FourthEdition,
followsalogicalorganizationoftheCCNP®BSCIexam


objectives.Materialispresentedinaconcisemanner,focusing

onincreasingreaders'retentionandrecallofexamtopics."DoI
KnowThisAlready?"quizzesopeneachchapterandallowyou
todeterminehowmuchtimeyouneedtospendoneach
section.ExamtopiclistsandFoundationSummarytablesmake
referencingeasyandgiveyouaquickrefresherwheneveryou
needit.Scenario-basedexerciseshelpyouthinkaboutexam
objectivesinreal-worldsituations,thusincreasingrecallduring
examtime.Challengingchapter-endingreviewquestionshelp
youassessyourknowledgeandreinforcekeyconcepts.
ThecompanionCD-ROMcontainsapowerfultestingenginethat
allowsyoutofocusonindividualtopicareasortakecomplete,
timedexams.Theassessmentenginealsotracksyour
performanceandprovidesfeedbackonamodule-by-module
basis,presentingquestion-by-questionremediationtothetext.
Wellregardedforitslevelofdetail,assessmentfeatures,and
challengingreviewquestionsandexercises,thisbookhelpsyou
mastertheconceptsandtechniquesthatwillenableyouto
succeedontheexamthefirsttime.
BrentD.Stewart,CCNPandcertifiedCiscoinstructor,isa
networkadministratoratCommScope,wherehefocusesonthe
designandimplementationofaninternationalIPnetwork.Brent
hasworkedinfiber-opticmanufacturingR&Dandasanetwork
consultant.
ClareGough,CCIE®No.2893,isaninstructoranda
consultantwithmorethan18yearsofpracticalexperiencein
computernetworking.
Theofficialstudyguidehelpsyoumasterallthetopicsonthe
CCNPBSCIexam,including
Essentialroutingprinciplesfordesigningandmanaging
scalablenetworks

EIGRP,OSPF,andIS-ISfunctionsandoperation


BasicBGPconfiguration
Multicastrouting
CiscoIOS®routingfeatures,includingredistribution,
routefiltering,andDHCP
IPv6addressingandthetransitionfromIPv4toIPv6
CompanionCD-ROM
TheCD-ROMcontainsanelectroniccopyofthebookandmore
than200practicequestionsfortheBSCIexam,including
simulation-basedquestions,allavailableinstudymode,test
mode,andflashcardformat.
ThisvolumeispartoftheExamCertificationGuideSeriesfrom
CiscoPress®.Booksinthisseriesprovideofficiallydeveloped
exampreparationmaterialsthatofferassessment,review,and
practicetohelpCiscoCareerCertificationcandidatesidentify
weaknesses,concentratetheirstudyefforts,andenhancetheir
confidenceasexamdaynears.
Category:CiscoCertification
Covers:CCNPBSCIexam642-901


CCNPBSCIOfficialExamCertificationGuide,
FourthEdition
byBrentD.Stewart;ClareGough-CCIENo.2893
Publisher:CiscoPress
PubDate:July18,2007
PrintISBN-10:1-58720-147-X
PrintISBN-13:978-1-58720-147-9

Pages:672
TableofContents|Index

Copyright
AbouttheAuthor
AbouttheContributors
AbouttheTechnicalReviewers
Acknowledgments
IconsUsedinThisBook
CommandSyntaxConventions
Foreword
Introduction
PartI:IntroductiontoScalableNetworks
Chapter1.NetworkDesign
"DoIKnowThisAlready?"Quiz
FoundationTopics
FoundationSummary
Q&A
Chapter2.IPAddressPlanningandSummarization
"DoIKnowThisAlready?"Quiz
FoundationTopics
FoundationSummary
Q&A
PartII:EIGRP


Chapter3.EIGRPPrinciples
"DoIKnowThisAlready?"Quiz
FoundationTopics
FoundationSummary

Q&A
Chapter4.ScalableEIGRP
"DoIKnowThisAlready?"Quiz
FoundationTopics
FoundationSummary
Q&A
Scenarios
ScenarioAnswers
PartIII:OSPF
Chapter5.UnderstandingSimpleSingle-AreaOSPF
"DoIKnowThisAlready?"Quiz
FoundationTopics
FoundationSummary
Q&A
Scenarios
ScenarioAnswers
Chapter6.OSPFNetworkTopologies
"DoIKnowThisAlready?"Quiz
FoundationTopics
FoundationSummary
Q&A
Chapter7.UsingOSPFAcrossMultipleAreas
"DoIKnowThisAlready?"Quiz
FoundationTopics
FoundationSummary
Q&A
Scenarios
ScenarioAnswers

Chapter8.OSPFAdvancedTopics
"DoIKnowThisAlready?"Quiz
FoundationTopics
FoundationSummary
Q&A
PartIV:IS-IS
Chapter9.FundamentalsoftheIntegratedIS-ISProtocol
"DoIKnowThisAlready?"Quiz
FoundationTopics
FoundationSummary
Q&A
Chapter10.ConfiguringIntegratedIS-IS
"DoIKnowThisAlready?"Quiz
FoundationTopics
FoundationSummary
Q&A
Scenarios
ScenarioAnswers
PartV:CiscoIOSRoutingFeatures
Chapter11.ImplementingRedistributionandControlling
RoutingUpdates
"DoIKnowThisAlready?"Quiz
FoundationTopics
FoundationSummary
Q&A
Scenario
ScenarioAnswers
Chapter12.ControllingRedistributionwithRouteMaps
"DoIKnowThisAlready?"Quiz
FoundationTopics

FoundationSummary
Q&A


Chapter13.DynamicHostControlProtocol
"DoIKnowThisAlready?"Quiz
FoundationTopics
FoundationSummary
Q&A
PartVI:BGP
Chapter14.BGPConcepts
"DoIKnowThisAlready?"Quiz
FoundationTopics
FoundationSummary
Q&A
Chapter15.BGPNeighbors
"DoIKnowThisAlready?"Quiz
FoundationTopics
FoundationSummary
Q&A
Scenarios
ScenarioAnswers
Chapter16.ControllingBGPRouteSelection
"DoIKnowThisAlready?"Quiz
FoundationTopics
FoundationSummary
Q&A
Scenarios
ScenarioAnswers
PartVII:Multicasting

Chapter17.WhatIsMulticasting?
"DoIKnowThisAlready?"Quiz
FoundationTopics
FoundationSummary
Q&A
Chapter18.IGMP


"DoIKnowThisAlready?"Quiz
FoundationTopics
FoundationSummary
Q&A
Chapter19.ConfiguringMulticast
"DoIKnowThisAlready?"Quiz
FoundationTopics
FoundationSummary
Q&A
PartVIII:IPv6
Chapter20.IntroductiontoIPv6andIPv6Addressing
"DoIKnowThisAlready?"Quiz
FoundationTopics
FoundationSummary
Q&A
Scenarios
Chapter21.IPv6RoutingProtocols,Configuration,and
TransitioningfromIPv4
"DoIKnowThisAlready?"Quiz
FoundationTopics
FoundationSummary
Q&A

Scenarios
AppendixA.AnswerstoChapter"DoIKnowThisAlready?"
QuizzesandQ&ASections
Chapter1
Chapter2
Chapter3
Chapter4
Chapter5
Chapter6
Chapter7


Chapter8
Chapter9
Chapter10
Chapter11
Chapter12
Chapter13
Chapter14
Chapter15
Chapter16
Chapter17
Chapter18
Chapter19
Chapter20
Chapter21
Index


Copyright

CCNPBSCIOfficialExamCertificationGuide,Fourth
Edition
BrentD.Stewart,ClareGough
Copyright©2008CiscoSystems,Inc.
CiscoPresslogoisatrademarkofCiscoSystems,Inc.
Publishedby:
CiscoPress
800East96thStreet
Indianapolis,IN46240USA
Allrightsreserved.Nopartofthisbookmaybereproducedor
transmittedinanyformorbyanymeans,electronicor
mechanical,includingphotocopying,recording,orbyany
informationstorageandretrievalsystem,withoutwritten
permissionfromthepublisher,exceptfortheinclusionofbrief
quotationsinareview.
PrintedintheUnitedStatesofAmerica
FirstPrintingJuly2007
LibraryofCongressCatalogCardNumber:2004113747
ISBN-13:978-1-58720147-9
PortionsofChapters17–19havebeenadaptedfromChapter15
ofCCNPBCMSNOfficialExamCertificationGuidebyDave
Hucaby;ISBN-13:978-1-58720-142-4,ISBN-10:1-58720142-9©CiscoSystems,Inc.2006.

WarningandDisclaimer
ThisbookisdesignedtoprovideinformationaboutBSCI
Certification.Everyefforthasbeenmadetomakethisbookas
completeandasaccurateaspossible,butnowarrantyor


fitnessisimplied.

Theinformationisprovidedonan"asis"basis.Theauthors,
CiscoPress,andCiscoSystems,Inc.,shallhaveneitherliability
norresponsibilitytoanypersonorentitywithrespecttoany
lossordamagesarisingfromtheinformationcontainedinthis
bookorfromtheuseofthediscsorprogramsthatmay
accompanyit.
Theopinionsexpressedinthisbookbelongtotheauthorand
arenotnecessarilythoseofCiscoSystems,Inc.

TrademarkAcknowledgments
Alltermsmentionedinthisbookthatareknowntobe
trademarksorservicemarkshavebeenappropriately
capitalized.CiscoPressorCiscoSystems,Inc.,cannotattestto
theaccuracyofthisinformation.Useofaterminthisbook
shouldnotberegardedasaffectingthevalidityofany
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Wegreatlyappreciateyourassistance.
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AllothertrademarksmentionedinthisdocumentorWebsiteare
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partnerdoesnotimplyapartnershiprelationshipbetweenCisco
andanyothercompany.(0701R)

Dedications
ThisbookisdedicatedtoKaren.Withoutherlove,patience,and
encouragement,thisbookwouldnothavebeenpossible.


AbouttheAuthor

BrentD.Stewart,CCNP,CCSI,isanetworkadministratorat
CommScope,wherehefocusesondesignandimplementation
ofaninternationalIPnetwork.Brenthasworkedinfiber-optic
manufacturingR&D,asanetworkconsultant,andasacertified
Ciscoinstructor.BrentparticipatedinthedevelopmentofBSCI
whilewithGlobalKnowledgeanddevelopedInternet-based
versionsofseveralCCNPclasses.BrentreceivedaB.S.in
physicsfromLenoir-RhyneCollegeandiscurrentlyfinishingan
M.S.incomputerscience/informationsecurityfromJames
MadisonUniversity.
BrentlivesinHickory,NorthCarolina,withhisbeautifulwife,
Karen,andtheirwonderfullymischievouschildren,Benjamin,
Kaitlyn,Madelyn,andWilliam.


AbouttheContributors
WayneLewis,Ph.D.,isanassociateprofessoratHonolulu
CommunityCollege.Since1992,hehasservedasamath
instructor,asthestateschool-to-workcoordinator,andasthe
leadinstructorfortheCiscoAcademyTrainingCenter(CATC).
HehasauthoredsevenCiscoPressbooksonnetwork
troubleshooting,multilayerswitching,and,mostrecently,
intermediateroutingandbasicswitching.Asaconsultantfor
Cisco,hecoordinatedthedevelopmentofseveraliterationsof
thecurriculumfortheCCNPandservedasaprojectmanager
forthedevelopmentoftheSecuringCiscoLANDevicescourse
fortheCriticalInfrastructureAssuranceGroup.Whenheisnot
managing,teaching,writing,consulting,orspendingtimewith
hiswifeandkids,heenjoyssurfingtheNorthShoreofOahu
duringthewintermonthsandtheSouthShoreofOahuduring

thesummermonths.
DianeTeare,CCNP,CCDP,CCSI,isaprofessionalinthe
networking,training,ande-learningfields.Shehasmorethan
20yearsofexperienceindesigning,implementing,and
troubleshootingnetworkhardwareandsoftwareandhasalso
beeninvolvedinteaching,coursedesign,andproject
management.Shehasextensiveknowledgeofnetworkdesign
androutingtechnologiesandisaninstructorwithoneofthe
largestauthorizedCiscoLearningPartners.Shewasalso
recentlytheDirectorofe-Learningforthesamecompany,
responsibleforplanningandsupportingallthecompany'selearningofferingsinCanada,includingCiscocourses.Dianewas
partoftheteamthatdevelopedthelatestversionoftheBSCI
course.Shehasabachelor'sdegreeinappliedsciencein
electricalengineering(BASc)andamaster'sdegreeinapplied
scienceinmanagementscience(MASc).Sheco-authoredthe
CiscoPresstitlesCampusNetworkDesignFundamentalsand
threeeditionsoftheBuildingScalableCiscoInternetworks
(BSCI)AuthorizedSelf-StudyGuide;shealsoeditedCCDASelfStudy:DesigningforCiscoInternetworkSolutions(DESGN)and


DesigningCiscoNetworks.


AbouttheTechnicalReviewers
ClareGough,CCIENo.2893,hasworkedasanetwork
engineerfor17years,duringwhichtimeshehasmanagedand
designedlarge-scalenetworks.In1997shewasoneofthefirst
womentogainherCCIE.Inadditiontobeinganetworkdesign
consultant,sheisanacknowledgedauthorityonthe
developmentanddeliveryoftechnicaltraining.Sheisthe

authorofseveralCiscoPressbooks,includingthefirstthree
editionsoftheBSCIOfficialExamCertificationGuide.AtDigital
EquipmentCorporationinAtlanta,shewaspartofthe
developmentteamresponsiblefortheproductionofalltraining
materials.ShealsocreatedPATHworksSystemManagement
courses.AsthethirdemployeehiredbyProtocolInterface,
whichwasthefirstCiscoTrainingPartner,Clareeventually
becamethecompany'sfirsttrainingmanagerandsawitgrow
tobecomeapartofGlobalKnowledge.
JeroldSwan,CCIENo.17783,iscurrentlyaseniornetwork
engineerfortheSouthernUteIndianTribeGrowthFund,where
heworksonrouting/switching,VoIP,andsecurityprojects.
Previously,hewasaninstructorwithGlobalKnowledge,where
hetaughtCCNAandCCNPcourses.Hehasalsoworkedin
networkingintheserviceproviderandhighereducationfields.
Heholdsbachelor'sandmaster'sdegreesinEnglishfrom
StanfordUniversity.HeliveswithhiswifeandsoninDurango,
Colorado,andisinvolvedintrailrunning,searchandrescue,
andmartialarts.


Acknowledgments
Abookofthisnaturerequiresaconstellationofintelligentand
hardworkingpeopletobringittogether,andIappreciateallthe
helpI'vereceived.
JaySwanandClareGoughweretremendouslyhelpfultechnical
editors.Theyofferedcorrectionsandsuggestionsthathave
improvedthisbookenormously.
I'despeciallyliketothanktheeditorsatCiscoPresswhohave
guidedthisbooktocompletion:MaryBethRayandDaynaIsley.

IconsUsedinThisBook


CommandSyntaxConventions
Theconventionsusedtopresentcommandsyntaxinthisbook
arethesameconventionsusedintheIOSCommandReference.
TheCommandReferencedescribestheseconventionsas
follows:
Boldfaceindicatescommandsandkeywordsthatare
enteredliterallyasshown.Inactualconfigurationexamples
andoutput(notgeneralcommandsyntax),boldface
indicatescommandsthataremanuallyinputbytheuser
(suchasashowcommand).
Italicsindicateargumentsforwhichyousupplyactual
values.
Verticalbars(|)separatealternative,mutuallyexclusive
elements.
Squarebrackets[]indicateoptionalelements.
Braces{}indicatearequiredchoice.
Braceswithinbrackets[{}]indicatearequiredchoice
withinanoptionalelement.


Foreword
CCNPBSCIOfficialExamCertificationGuideisanexcellentselfstudyresourcefortheCCNPBSCIexam.Passingtheexam
validatestheknowledge,skills,andunderstandingneededto
useadvancedIPaddressingandroutinginimplementing
scalabilityforCiscoISRroutersconnectedtoLANsandWANs.It

isoneofseveralexamsrequiredtoattaintheCCNP
certification.
GainingcertificationinCiscotechnologyiskeytothecontinuing
educationaldevelopmentoftoday'snetworkingprofessional.
Throughcertificationprograms,Ciscovalidatestheskillsand
expertiserequiredtoeffectivelymanagethemodernenterprise
network.
CiscoPressexamcertificationguidesandpreparationmaterials
offerexceptional—andflexible—accesstotheknowledgeand
informationrequiredtostaycurrentinyourfieldofexpertise,or
togainnewskills.Whetherusedasasupplementtomore
traditionaltrainingorasaprimarysourceoflearning,these
materialsofferuserstheinformationandknowledgevalidation
requiredtogainnewunderstandingandproficiencies.
DevelopedinconjunctionwiththeCiscocertificationsand
trainingteam,CiscoPressbooksaretheonlyself-studybooks
authorizedbyCisco;thesebooksofferstudentsaseriesof
exampracticetoolsandresourcematerialstohelpensurethat
learnersfullygrasptheconceptsandinformationpresented.
AdditionalauthorizedCiscoinstructor-ledcourses,e-learning,
labs,andsimulationsareavailableexclusivelyfromCisco
LearningSolutionsPartnersworldwide.Tolearnmore,visit
/>Ihopethatyoufindthesematerialstobeanenrichingand
usefulpartofyourexampreparation.
ErikUllanderson


Manager,GlobalCertifications
Learning@Cisco
February,2007

Introduction
Cisco'sprofessionalcertifications—CCNP(Routingand
Switching),CCDP(Design),CCIP(ServiceProvider),CCSP
(NetworkSecurity),andCCVP(Voice)—areverypopularand
meaningfulmeasurementsofprogressinyourcareer.
Successfullycompletinganyofthesetracksdemonstrates
exposureandfamiliaritywitharangeofimportantconceptsand
adeepcommitmenttoyourcareer.DetailsaboutallCisco
certificationsmaybefoundonlineat
www.cisco.com/go/certification.
TheBSCIexamisarequirementforCCNP,CCDP,andCCIP,and
generallyshowsthatyouhavethetheoreticalunderstanding
andimplementationknow-howtobuildandsupportlarge,
complexIPnetworks.TheBSCIexamisnotaneasyexam.
Ciscowantstoensurethateveryonewhopassesthetest
thoroughlyunderstandsthesubjectmatterbothataconceptual
levelandatanimplementationlevel.
Althoughthisisadifficultexam,networkingprofessionalscan
expecttopassiftheymeettheprerequisitesandspendthe
properamountoftimeontraining,on-the-jobexperience,and
study.Aswithmostcertificationexams,youmightnotpassthe
firsttime.Takingtheexamasecondtime,however,islikelyto
beeasierbecauseyouwillhaveabetterideaofwhattoexpect.
TherearemanyquestionsontheBSCIexamthatyoumight
alreadyknowthroughyourprofessionalbackgroundand
experiences,ifyoumeettheprerequisites.Thisbookoffersyou
theopportunitytosolidifythatknowledgeasyoumakeyour
finalpreparationstotaketheBSCIexam.

ExamOverview
TheBSCIexamisacomputer-basedexam.Youcantakethe
examatanyPrometricorPearsonVUEtestingcenter.Seethe
CiscoTrainingandEventspage


(formore
informationaboutregisteringforyourexam.
Yourtestingcentercantellyoutheexactlengthoftheexam.
Beawarethatwhenyouregisterfortheexam,youmightbe
toldtoallowacertainamountoftimetotaketheexamthatis
longerthanthetestingtimeindicatedbythetestingsoftware
whenyoubegin.Thisistoallowtimetogetsettledandtakethe
tutorialaboutthetestingengine.

Theexamisdifficultinsubjectmatterandalsoinformat.
Questionsmaybemultiple-choice/singleanswer,multiple
choice/multipleanswer,fill-in-the-blank,drag-and-drop,or
simulations.Expectquestionsthatrequireyoutopickthe
correctanswerbasedonoutputscreensandconfiguration
output.Alsobepreparedtoconfigurearouterororganizea
diagramtodemonstrateyourunderstandingofthepractical
applicationofrouting.VisitCisco.comforacertificationexam
tutorial:
/>Anotherdifficultaspectoftheexamformatisthatyouarenot
allowedtogobackandchangeananswer.Candidateswhoare
unsureaboutananswerwillbeforcedtoguessratherthan
haveanextra15minutestothinkaboutitattheendofthe
exam.

Note
Oneoftheprerequisitesforprofessional-level
certificationisCCNA.IfyouhavecompletedtheCCNA
thenyouarealreadyfamiliarwiththeformatsand
techniquesusedinCiscotestsandtheBSCItestwillnot
surpriseyouinthatregard.

GoalsandMethods
Thegoalofthisbookistohelpyouefficientlystudyforand