CCNA学习指南：CiscoCertifiedNetworkAssociate

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提供250多道模拟试题随书附赠：Boson提供的网路模拟器，包括20个模拟的实验练习，100个实践问题，超过100个视频指导。完全覆盖ICND1(Exam640-822)和ICND2(Exam640-816)考试的所有知识点。通过数百个实际问题和动手实验，《CCNA学习指南:CiscoCertifiedNetworkAssociate》(Exam640-802)(英文版)介绍了你在参加考试时需要了解的所有知识，并教您如何备考。■全面介绍Exarn640-802的所有官方内容；■《CCNA学习指南:CiscoCertifiedNetworkAssociate》(Exam640-802)(英文版)的前面和后面都提供了备考清单，掌握该清单中的所有内容就可以参加考试了；■每章中的“考试内幕”部分突出展示了关键的考试主题；■模拟的考试问题与实际考试的格式、风格、主题和难度相符：《CCNA学习指南》介绍了所有的CCNA考试主题，包括：网路拓扑、0SI参考模型、第2层LAN技术、网桥和交换机、WLAN、lP定址和子网划分、VLSM、TCP/IP和传输层、CiscolOS软体、交换机和路由器配置、VLAN和中继、交换机与冗余、IOS设备管理、OSPF和ElGRP路由选择、访问控制列表、IPv6、wAN和帧中继？RichardDeal（CCNA、CCNP、CCDA、CCOP）是一位CISCO讲师和CISCO认证考试的试题编写者。他的谘询公司TheDealGroup提供全球範围的网路谘询和培训服务。Richard是《CCNA学习指南:CiscoCertifiedNetworkAssociate》(Exam640-802)(英文版)上一版和《CiscoPIXFirewalls》的作者。随书光碟包括如下内容。■Boson提供的练习测试引擎，该引擎具有下列特点：·实际的考试问题；·详细的答案说明；·每章的测验和实际考试环境的模拟；·“评分报告”性能评估工具。■Boson提供的互动式网路模拟软体。包括20个模拟的实验练习。■超过100个视频指导。

内容简介

《CCNA学习指南：CiscoCertifiedNetworkAssociate》由具有丰富CCNA考试经验的专家编写，以最新版的CCNA认证考试(Exam640-802)为目标，内容不但覆盖核心考试640-802的所有考试要点，而且还涵盖了ICND1(640-822)和ICND2(640-816)的所有考试考点，详细地介绍了CCNA应试者应该掌握的所有技能。《CCNA学习指南：CiscoCertifiedNetworkAssociate》(Exam640-802)（英文版）在介绍考试要点时针对每个考试目标，使用了大量的插图、表格、试验、测试等，使读者在牢固掌握知识点的同时，轻鬆地获得了丰富的实践经验。是参加CCNA考试人员的必备考试教材。

目录

PartI　Introductiontonetworking1　Networks　3IntroductiontoNetworks　4NetworkCharacteristics　4Components　5NetworkLocations　7LocalAreaNetworks　7WideAreaNetworks　7NetworkTopologies　9PhysicalandLogicalTopologies　11FullyandPartiallyMeshedTopologies　12IntroductiontoNetworkSecurity　13ClassesofAttacks　14CommonThreatsandMitigation　15√Two-MinuteDrill　21Q&ASelfTest　23SelfTestAnswers　252　OSIReferenceModel　27IntroductiontotheOSIReferenceModel　28LayersoftheOSIReferenceModel　29Layer7:TheApplicationLayer　31Layer6:ThePresentationLayer　31Layer5:TheSessionLayer　32Layer4:TheTransportLayer　33Layer3:TheNetworkLayer　41Layer2:TheDataLinkLayer　46Layer1:ThePhysicalLayer　51Devices　52EncapsulationandDe-encapsulation　53GoingDowntheProtocolStack　55GoingUptheProtocolStack　56LayersandCommunication　57√Two-MinuteDrill　62Q&ASelfTest　64SelfTestAnswers　673　Layer2LANTechnologies　69EthernetEvolutionandStandards　70EthernetOperation　71EthernetImplementations　72Framing　73Addressing　78BitValues　78Powerof2　79HexadecimalConversion　80MACAddresses　81EthernetConnections　82
CablingTypes　82EthernetMediaTypes　89√Two-MinuteDrill　94Q&ASelfTest　95SelfTestAnswers　974　BridgesandSwitches　99ProblemsandLimitationsofEthernet　100DistanceandExtensionofLANs　100Collisions,CollisionDomains,andCongestion　101SolutionstoCollisionProblems　102Bridges　102Switches　105BridgesversusSwitches　105MethodsofSwitching　107Duplexing　109SwitchingFunctions　111LearningFunction　112ForwardingFunction　114Loops　121√Two-MinuteDrill　124Q&ASelfTest　125SelfTestAnswers　1275　Wireless　129WirelessLANTechnologies　130Narrowband,Broadband,andPacketDataSolutions　130CSMA/CA　131RadioFrequencyTransmissionFactors　132WLANStandards　133RFBands　133802.11Standards　134WLANSecurity　136WLANClientAccesstotheNetwork　136SecuritySolutions　137WLANImplementation　141AccessModes　142CoverageAreas　143DataRates　144WLANDevices　145AccessPoints　145Clients　146Troubleshooting　146√Two-MinuteDrill　150Q&ASelfTest　152SelfTestAnswers　155PartII　TCP/IPProtocolSuite6　TCP/IPandtheInternetLayer　159TCP/IPProtocolStack　160InternetLayer　160
IntroductiontoTCP/IPAddressing　163TCP/IPInternetProtocols　168DHCP　168ARP　170ICMP　176TCP/IPToolsforWindowsPCs　177ipconfigCommand　177ThepingCommand　179ThetracertCommand　181ThearpCommand　182√Two-MinuteDrill　186Q&ASelfTest　188SelfTestAnswers　1907　IPAddressingandSubnetting　193IPAddressingReview　194DistinguishingBetweenClassesofAddresses　195IPAddressComponents　196Subnetting　197SubnetMasks　198SubnetMaskValues　199IPAddressPlanning　203Step1:DetermineNetworkandHostRequirements　204Step2:SatisfyHostandNetworkRequirements　204Step3:DeterminetheSubnetMask　206Step4:DeterminetheNetworkAddresses　206Step5:DeterminetheDirectedBroadcastAddresses　208Step6:DeterminetheHostAddresses　209exercise7-1:PlanningIPAddressingExercise　210DeterminingIPAddressComponents　211Six-StepApproachforDeterminingIPAddressComponents　212Example#1forDeterminingIPAddressComponents　213Example#2forDeterminingIPAddressComponents　215Example#3forDeterminingIPAddressComponents　216exercise7-2:DeterminingNetwork,DirectedBroadcast,andHost　Components　217√Two-MinuteDrill　220Q&ASelfTest　222SelfTestAnswers　2248　VLSM　227
VLSM　228FeaturesofVLSM　228AddressingwithVLSM　230VLSMExample1　232VLSMExample2　234RouteSummarization　235AdvantagesofSummarization　236ClasslessInterdomainRouting　237HierarchicalAddressing　238RoutingandSubnetMasks　239TheRoutingTable　242PerformingSummarization　243exercise8-1:PerformingRouteSummarization　247exercise8-2:VerifyingRouteSummarization　248√Two-MinuteDrill　252Q&ASelfTest　253SelfTestAnswers　2569　TCP/IPandtheTransportLayer　259TransportLayerFunctions　260FlowControl　260Reliability　261Multiplexing　262Segmentation　262TransportLayerProtocols　262TransmissionControlProtocol　262UserDatagramProtocol　264TCPandUDPApplications　266Ports　267ApplicationMapping　268SessionEstablishment　270TCP’sThree-WayHandshake　270TCP’sSequencingandAcknowledgments　272TCP’sFlowControlandWindowing　273√Two-MinuteDrill　276Q&ASelfTest　278SelfTestAnswers　28010　SendingandReceivingTCP/IPPackets　281NetworkComponentsandAddressingReview　282Layer1Components　282Layer2Components　282Layer3Components　283End-to-EndDeliveryExample　285
PC-AAcquiresAddressingInformation　286PC-AOpensUpaSessiontoPC-B　287√Two-MinuteDrill　294Q&ASelfTest　295SelfTestAnswers　297PartIII　CiscoCatalystSwitches11　CiscoIOSSoftware　301IntroductiontoCiscoDeviceConfiguration　302RouterandSwitchConnections　303DeviceStartup　307Command-LineInterface(CLI)　308CLIAccessModes　310IOSBasics　312CommandAbbreviationandCompletion　312Context-SensitiveHelp　313ErrorMessages　314EnteringCommands　315IOSFeatureExample　319exercise11-1:UsingIOSFeatures　320BasicIOSConfiguration　321AccessingConfigurationMode　322DeviceIdentification　322SubconfigurationModes　323LineConfiguration　324InterfaceConfiguration　327BasicIOSSecurityConfiguration　331PhysicalandEnvironmentalThreats　331Passwords　332LoginBanners　335IOSOperationandVerification　337ShowandDebugCommandOverview　337RunningandStartupConfiguration　338DeviceVersionInformation　341InterfaceInformation　342exercise11-2:UsingtheCLItoSetUpaBasicRouter　Configuration　346√Two-MinuteDrill　351Q&ASelfTest　353SelfTestAnswers　35512　InitialSwitchConfiguration　3572960Overview　3582960Chassis　3592960LEDsandMODEButton　360
MODEButton　360SwitchStartup　361SwitchBootupProcess　362SystemConfigurationDialog　364BasicSwitchConfiguration　367IPAddressandDefaultGateway　367ExampleConfiguration　368exercise12-1:ConfiguringtheSwitches　370BasicSwitchOperationandVerification　372MACAddressTable　372StaticMACAddresses　373exercise12-2:CAMTables　374PortSecurityFeature　375PortSecurityConfiguration　375PortSecurityVerification　377√Two-MinuteDrill　381Q&ASelfTest　383SelfTestAnswers　38513　VLANsandTrunks　387VLANOverview　388SubnetsandVLANs　391Scalability　392VLANsandTrafficTypes　393VLANMembership　394VLANConnections　395Access-LinkConnections　396TrunkConnections　396VLANTrunkProtocol　403VTPModes　405VTPMessages　406VTPPruning　408VLANConfiguration　412ConfiguringVTP　412ConfiguringTrunks　415exercise13-1:ConfiguringTrunksonYourSwitches　418CreatingVLANs　419BasicTroubleshootingofVLANsandTrunks　422exercise13-2:ConfiguringVLANsonYourSwitches　424√Two-MinuteDrill　428Q&ASelfTest　430SelfTestAnswers　43214　SwitchesandRedundancy　433Layer2Redundancy　434
HierarchicalCampusDesign　434Layer2Issues　436SpanningTreeProtocol　438BridgeProtocolDataUnits　439RootSwitch　440RootPort　442DesignatedPort　444PortStates　445Layer2Convergence　447Per-VLANSTPPlus　449SimpleSTPExample　450RapidSpanningTreeProtocol　454AdditionalPortRoles　455RSTPBPDUs　455RSTPConvergenceFeatures　456RSTPConfiguration　457PVST+andRSTPOptimization　459exercise14-1:ExaminingSTPInformationonYourSwitches　461EtherChannels　462EtherChannelOverview　462EtherChannelConfiguration　464STPTroubleshooting　465LoopIdentification　465ConfigurationRemedies　465√Two-MinuteDrill　468Q&ASelfTest　470SelfTestAnswers　472PartIV　CiscoRoutersandLANs15　RoutersandRouting　477RoutingIntroduction　479TypesofRoutes　479AutonomousSystems　480AdministrativeDistance　481DynamicRoutingProtocols　482RoutingMetrics　483DistanceVectorProtocols　484LinkStateProtocols　486HybridProtocols　489DistanceVectorProtocolProblemsandSolutions　490Problem:Convergence　490Problem:RoutingLoops　496√Two-MinuteDrill　504Q&ASelfTest　506SelfTestAnswers　508
16　InitialRouterConfiguration　511RouterHardwareComponents　512Read-OnlyMemory(ROM)　512OtherComponents　513RouterBootupProcess　514BootstrapProgram　516SystemConfigurationDialog　519ConfigurationRegister　522AutoSecure　526RouterConfiguration　531InterfaceConfiguration　532SubnetZeroConfiguration　536StaticHostConfiguration　536exercise16-1:UsingIOSFeatures　538Router-on-a-Stick　540SubinterfaceConfiguration　540InterfaceEncapsulation　541Router-on-a-StickExampleConfiguration　542√Two-MinuteDrill　546Q&ASelfTest　548SelfTestAnswers　55017　IOSDeviceManagement　553RouterConfigurationFiles　554SavingConfigurationFiles　554RestoringConfigurationFiles　556CreatingandDeletingConfigurationFiles　557ConfigurationFileNomenclature　558ReviewofConfigurationFiles　559exercise17-1:ManipulatingYourRouter’sConfigurationFiles　560ChangesinYourNetwork　561AddingDevices　562ChangingDevices　562IOSImageFiles　563NamingConventionsforIOSImages　564BeforeUpgradingtheIOSImage　565BackingUpanIOSImage　566LoadinganIOSImage　566RemoteAccesstoYourIOSDevice　568SSHvsTelnetAccess　569SSHConfiguration　570
BasicTroubleshooting　571LocalARPTable　572CiscoDiscoveryProtocol(CDP)　573Layer3ConnectivityTesting　577Layer7ConnectivityTesting　584DebugOverview　587exercise17-2:UsingtheRouter’sTroubleshootingTools　589√Two-MinuteDrill　592Q&ASelfTest　594SelfTestAnswers　59618　SecurityDeviceManager　599IntroductiontoSDM　600PCRequirements　601RouterRequirementsandSDMFiles　602NecessaryRouterConfiguration　603AccessingSDM　605BasicRouterConfigurationUsingSDM　609ConfigureScreens　609Interfaces　613DHCPSetup　615BasicRouterMonitoringUsingSDM　620√Two-MinuteDrill　624Q&ASelfTest　625SelfTestAnswers　627PartV　Routing19　BasicRouting　631StaticRoutes　632StaticRouteConfiguration　633DefaultRouteConfiguration　634DefaultRoutesandDistanceVectorProtocols　635StaticRouteVerificationandTroubleshooting　636exercise19-1:StaticRouteConfiguration　637exercise19-2:BasicIPandRoutingTroubleshooting　639DynamicRoutingProtocolBasics　642TherouterCommand　643ThenetworkCommand　644RIP　646RIPOperation　646RIPConfiguration　649RIPVerificationandTroubleshooting　652exercise19-3:ConfiguringRIP　656exercise19-4:BasicRIPTroubleshooting　659
√Two-MinuteDrill　664Q&ASelfTest　665SelfTestAnswers　66720　OSPFRouting　669OSPFOverview　670HierarchicalDesign:Areas　671MetricStructure　673OSPFOperation　674RouterIdentities　674FindingNeighbors　675DesignatedandBackupDesignatedRouters　676SharingRoutingInformation　678OSPFConfiguration　681LoopbackInterfaces　683DefaultRoutePropagation　684OSPFMetricValues　685OSPFAuthentication　686OSPFTroubleshooting　688TheshowipprotocolsCommand　688TheshowiprouteCommand　689TheshowipospfCommand　690TheshowipospfinterfaceCommand　691TheshowipospfneighborCommand　692ThedebugipospfadjCommand　693ThedebugipospfeventsCommand　693ThedebugipospfpacketCommand　694exercise20-1:ConfiguringOSPF　695exercise20-2:TroubleshootingOSPF　697√Two-MinuteDrill　702Q&ASelfTest　704SelfTestAnswers　70621　EIGRPRouting　709EIGRPOverview　710MetricsandInteroperability　711RoutingTablesandUpdates　711EIGRPOperation　712BuildingNeighborRelationships　713ChoosingRoutes　714EIGRPConfiguration　716EIGRPConfigurationExample　716OtherEIGRPCommands　718EIGRPTroubleshooting　723TheshowipprotocolsCommand　723
TheshowiprouteCommand　724TheshowipeigrpneighborsCommand　725TheshowipeigrptopologyCommand　727TheshowipeigrpinterfacesCommand　728TheshowipeigrptrafficCommand　729ThedebugipeigrpCommand　729ThedebugeigrppacketsCommand　730√Two-MinuteDrill　733Q&ASelfTest　734SelfTestAnswers　736PartVI　AdvancedCiscoRouterFeatures22　AccessControlLists　739ACLOverview　740Definition　740Types　741Processing　742BasicACLConfiguration　745CreatinganACL　745MatchingonAddresses:WildcardMasks　746ActivatinganACL　749ACLTypes　751StandardNumberedACLs　751exercise22-1:ConfiguringStandardNumberedACLs　756ExtendedNumberedACLs　759NamedACLs　765ACLRemarks　767AccessListVerification　768ACLChanges　770ACLPlacement　772StandardACLs　772ExtendedACLs　774√Two-MinuteDrill　777Q&ASelfTest　779SelfTestAnswers　78123　Addresstranslation　783AddressTranslationOverview　784RunningOutofAddresses　784PrivateAddresses　785AddressTranslation　786AddressTranslationTypes　787TermsandDefinitions　787NetworkAddressTranslation　787PortAddressTranslation　790AdvantagesofAddressTranslation　793DisadvantagesofAddressTranslation　794
AddressTranslationConfiguration　795NATConfiguration　795PATConfiguration　799AddressTranslationVerification　800TranslationProcessandTroubleshooting　803Local-to-GlobalTranslation　803Global-to-LocalTranslation　804AddressTranslationTroubleshooting　805exercise23-1:ConfiguringStaticAddressTranslation　806exercise23-2:ConfiguringDynamicAddressTranslation　808√Two-MinuteDrill　812Q&ASelfTest　814SelfTestAnswers　81724　IPv6　819NecessityofIPv6　820GrowthIssues　820IPv6Features　821IPv6Addressing　823IPv6AddressFormat　823TypesofIPv6Addresses　824AddressAssignment　829StaticAddressAssignment　829DHCPv6　829StatelessAutoconfiguration　830RoutingandIPv6　830SupportedRoutingProtocols　831IPv6Configuration　834EnablingIPv6andAssigningAddresses　834RIPng　835√Two-MinuteDrill　839Q&ASelfTest　841SelfTestAnswers　843PartVII　CiscoRoutersandWANs25　WANIntroduction　847WideAreaNetworkingOverview　848EquipmentandComponents　848ConnectionTypes　850WANInterfacesonCiscoRouters　856WANCabling　856EncapsulationMethods　856HDLC　858FrameType　858ConfiguringHDLC　859
PPP　860PPPComponents　861ConfiguringPPP　863TroubleshootingPPP　864PPPAuthentication　866exercise25-1:ConfiguringPPP　872exercise25-2:BasicPPPTroubleshooting　874VirtualPrivateNetworks　876Benefits　877VPNTypes　877IPSec　880√Two-MinuteDrill　888Q&ASelfTest　890SelfTestAnswers　89226　FrameRelay　895VirtualCircuits　896FullyMeshedDesign　896AdvantagesofVCs　898TypesofVCs　900SupportedSerialConnections　902FrameRelayTerms　903LMI　905DLCIs　907VCDataRates　911CongestionControl　914FrameRelayConfiguration　915EncapsulationConfiguration　915LMIConfiguration　917TroubleshootingLMI　917PVCConfiguration　920exercise26-1:ConfiguringFrameRelay　927Non-BroadcastMulti-AccessEnvironments　930TopologyTypes　931SplitHorizonIssues　931SolutionstoSplitHorizonProblems　933Subinterfaces　934exercise26-2:ConfiguringFrameRelaywithSubinterfaces　941√Two-MinuteDrill　946Q&ASelfTest　948SelfTestAnswers　950PartVIII　AppendixesA　AbouttheCD　955SystemRequirements　956InstallingandRunningtheBosonNetSimLEandBEE　956
BosonNetSimLE　956BEEandPracticeExams　957CertCams　958Help　958RemovingInstallation(s)　958TechnicalSupport　958B　ExamReadinessChecklist　959ICNDv1(642–822)Exam　960ICNDv2(642-816)Exam　965Index　967Glossary　985……