4TCP/IP4.014.024.034.044.05TCP/IPTCP/IPTCP/IPTCP/IPTCP/IPTCP/IP4OSI74-1TCP/IPISO/OSI4-14TCP/IPOSI5-7OSI4OSI3OSI1-24.14.01TCP/IPOSI7TCP/IP4CCIE4-1UDP()TCP/IP()4-1TCP/IPTCP/IPCCIETelnetTCP23FTPTCP21TCP20TFTPUDP69NFSSMTPTCP25DNSTCP53HTTPTCP80(XDR)(RPC)RPC(OSF)4.2.1()(RPC)OSIRPCRPCRPCRPCRPCRPC(DCE)RPCDECIBMHewlett-PackardMicrosoftDECRPCDCERPC4.2.2SocketBerkeleySocket(API)SocketBSDUNIXWindowssocket(WinSock)MicrosoftTCP/IP-324TCP/IP89WinSockBSDSocketTCP/IPWinSockWinSockMicrosoft163216MicrosoftWindows3.xWinSockInternetDLLInternetWinSock4.2.3(TLI)SystemVAPI19863.0TLIUNIXTLI4.2.4NetBIOSMicrosoftNetBIOS(/)TCP/IPNetBIOSRFC1001/2()UDPTCP/IPNetBIOSAPIDNSNetBIOSMicrosoftNetBIOSWindowsInternet(WINS)IP()NetBIOSNetBIOSNetBIOSMicrosoftLANManagerWindowsNTMicrosoftNetBIOSTCP/IP,IPXNetBEUINetBEUINetBIOSWINS(LMHOSTS)NetBIOSTCP/IPIPXNetBIOSIPXNetBIOSMicrosoftAPIOLEDECRPCNetBIOSNetBIOSTCP/IPNetBEUI(NetBIOS)4.34.03TCP/IP44OSI7TLIRPCOSI()TCP/IPOSITCP/IP4-2OSI1-7TCP/IP90CCNA4-2TCP/IP4.3.1TCP/IP(TCP/IP)(UDP)TCP/IPUDPTCP/IPIP•IP•IPIPTCP/IP4-2TCP/IP4.3.2TCPRFC7934TCP/IP9175432RPCAPI,TCP4-3114-2TCP/IPDNSTCPUDP53SMTPTCP25FTP-DataTCP201023FTPTCP21TelnetTCP23NTPTCPUDP123NNTPTCP119HTTPTCP80X-WindowsTCP6000~6100TCP•••••••1.TCP(TCP)ACKTCP()4-42.92CCNA4-3TCP()4-4TCPTCPTCPTCPTCPTCPTCPCCIEICMPICMPACK()ACK4.3.3UDPUDPTCPTCPUDPUDP4UDPTCPUDPUDP1.UDPUDPIEEE802.1d4TCP/IP931ACK12ACK22ACK2ACK12ACK222()()UDPUDPIPUDP2.IPUDP2IP(IPhelperaddress)IPFORWARD-PROTOCOLUDPIPFORWARD-PROTOCOLUDP•TFTP•DNS••NetBIOS•NetBIOS••TACACSIPIPIP4.44.04TCP/IP4OSI34•IP•ICMP•ARP•RARP•InARPIPICMPIPARPRARPInARPIP4.4.1(IP)RFC971OSIIPIP394CCNA•••1.IPTCP/IPIPIPTCPTCPIP2.IP(MTC)IP3.IP5IP4.4.2MACEthernetFDDIIPIPMACIPIP••MAC•NICMAC•NICIP•/•IPMAC(ARP)ARPARP()4-5ARP4-5ARP4TCP/IP95ARPCIPCARPIPMACIPMACIPARPARP4.4.3(RARP)MACIPX-WindowsRARPRARPIPIP4.4.4ARP(DLCI)IPDLCIDLCI(InARP)IP4.4.5(ICMP)RFC792ICMPIPICMP4-3ICMP1.ICMP(Ping)ICMPpingIPPingICMPECHOREQUESTECHOREPLY2.ICMPICMPIPTCP/IPIP3.ICMPIPICMP96CCNA0345811121314151617184-3ICMP4.54.05TCP/IPFTPPINGFTPPINGICMP4.5.1UNIXTCP/IPBSDUNIXIPUNIXInternetTCP/IPInternetTCP/IP4-4TCP/IPUNIXARPARP-AARP4-4UNIXTCP/IPARPARPHOSTNAMEHOSTNAMEUNIXrootNETSTATTCP/IPNETSTATIFCONFIGIPNESTAT-RPINGPINGIPTCP/IPTFTPSyslogCiscoTFTPsyslogTFTPCiscoCiscoWorksUNIXUNIXTFTPsyslogUNIXIntelMS-DOSWindows95WindowsNTTFTPNLMNovellNetWareInternetTFTP()TFTPTFTP()4TCP/IP97IPTFTPTFTPUNIXTFTPsyslogCPUCPUsuyslogInternetUNIXsyslogsyslogLOGGINGTRAPDEBUGsyslogPamelaForsyth,CCIE,CCSI,CNX4.5.232WindowsTCP/IP32MicrosoftWindowsNT,Window95Windows984-5IPCONFIGWINIPCFGIPUNIXIFCONFIGIPCONFIGWINIPCFG4-5WindowsTCP/IPWindowsNTWindows95Windows98IPCONFIG/ALLWINIPCFGFTPARPPINGTELNET4.6OSI7TCP/IP4CCIETCP/IPTelnetTFTPFTP98CCNAOSITCP/IPTCP/IP(RPC)(TLI)TCP/IPNetBIOSRPCRPCInternetWinsockWindows(TLI)UNIXNetBIOSAPITCPUDPNetBIOSNetBEUITCP/IP4OSITCPUDPTCP()TCPUDP()TCP/IPUDPUDPRFC768ICMPIPARPInARPRARPIPICMPIPARPInARPRARPMACIPTCP/IPFTPPINGARPTCP/IP4.72•TCP/IP•TCP/IP4OSI7•OSI7TCP/IP4•TCP/IP•()•BerkeleySockets(API)•Windows(WinSock)MicrosoftTCP/IP-32•TLI•MicrosoftNetBIOS(/)API4TCP/IP99•MicrosoftNetBIOSTCP/IPIPXNetBEUI••RFC793•TCP••UDP•UDPIEEE802Id•UDP2IP••IP•IPMAC(ARP)•MACIP•ARP(DLCI)IP•ICMPIPICMP•FTPPING•TCP/IPBSDUNIX•TCP/IP32MicrosoftWindowsNT,Windows95Windows984.811)Matchthefollowingapplicationlayerservicestotheircorrespondingtransportlayerprotocolport.()A.SMTP1.TCP/23B.FTP2.TCP/25C.TFTP3.TCP/80D.Telnet4.TCP/21E.HTTP5.UDP/69F.DNS6.TCP/532)WhichOSIreferencemodellayerdoesTelnetfunctionat(TelnetOSI)A.Transport100CCNAB.NetworkC.SessionD.Application3)HowmanylayersdoestheTCP/IPprotocolsuitehave,comparedtotheOSIreferencemodel(OSITCP/IP)A.TCPmodelhas4,OSImodelhas6B.TCPmodelhas7,OSImodelhas8C.TCPmodelhas4,OSImodelhas7D.TCPmodelhas7,OSImodelhas44)TheTCP/IPprotocolsuitehasaformalsessionlayerthatincludesNetBIOSRPCsandTLIfunctions(TCP/IPNetBIOSRPCTLI)A.TrueB.False5)WhatisthefunctionofRPCs(RPC)A.TomovefilesfromremotePCstoalocalPCB.Tomakeremotefunctioncallstransparent,sotheyappeartobelocalC.ToinitializeaprogramonaremotePCD.Tosendaprocedurethatislocaltoaremotenodeforprocessingelsewhere6)WhatdoesRPCstandfor(RPC)A.RemotepersonalcomputerB.Reserved-programmingcallC.Routed-procedurecallD.Remote-procedurecall7)WhatOSIreferencemodellayerdosocketsfunctionat(OSI)A.ApplicationB.PresentationC.SessionD.TransportE.NetworkF.DatalinkG.Physical8)Whatfunctiondosocketsperform()A.Theymakeremotefunctionsappearlocal,transparenttotheuserB.TheytransferfilestoandfromremotenodesC.TheymakethetransportlayerindependentD.Theyallowmultipleapplicationstosharethesameconnectiontothenetwork9)WhatisWinSock(WinSock)A.AversionofsocketsfortheMicrosoftWindowsplatform4TCP/IP101B.SocketsonBSDUNIXC.AsessionlayerAPIcommonlyconsideredtobeitsownprotocolD.AnetworklayerserviceforMicrosoftWindows10)WhatdoesTLIdo(TLI)A.Itmakesremotefunctionsappearlocal,transparenttotheuserB.IttransfersfilestoandfromremotenodesC.ItmakesthetransportlayerindependentD.Itallowsmultipleapplicationstosharethesameconnectiontothenetwork11)WhatOSIlayerdoes