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1、yy1・Refertotheexhibit・IdentifythedeviceslabeledA,B,C,andDinthenetworkphysicaldocumentation.匚A=bridge,B=switch,C=router,D=hubKA=bridge,B=hub,C=router,D=switchCA=bridge,B=router,C=hub,D=switchcA=hub,B=bridge,C=router,D=switch2Thecentralhubhasmalfunctionedinthenetwork.Asaresult,t
2、heentirenetworkisdown.Whichtypeofphysicalnetworktopologyisimplemented?匚busEstarCring匚mesh3.Aswitchhasfailedinthenetwork.Asaresult,onlyonesegmentofthenetworkisdown.Whichtypeofphysicalnetworktopologyisimplemented?CbusCring匚starEextendedstar4.WhichthreefeaturesapplytoLANconnectio
3、ns?(Choosethree.)厂operateusingserialinterfacesVmakenetworkconnectionusingahubVlimitedtooperationoversmallgeographicareas厂providepart-timeconnectivitytoremoteservicesVtypicallyoperateunderlocaladministrativecontrol厂providelowerbandwidthservicescomparedtoWANs3.Whatisoneadvantage
4、ofdefiningnetworkcommunicationbythesevenlayersoftheOSImodel?【:Itincreasesthebandwidthofanetwork.EItmakesnetworkingeasiertolearnandunderstand・Iteliminatesmanyprotocolrestrictions.匚Itincreasesthethroughputofanetwork.cItreducestheneedfortestingnetworkconnectivity.4.Whatmakesiteas
5、ierfordifferentnetworkingvendorstodesignsoftwareandhardwarethatwillinteroperate?EOSImodelcproprietarydesigns匚IPaddressingschemecstandardlogicaltopologies匚standardphysicaltopologies5.WhichtermdescribestheprocessofaddingheaderstodataasitmovesdownOSIlayers?匚division匚encoding匚sepa
6、ration匚segmentationEencapsulation6.Whatisthetermusedtodescribethetransportlayerprotocoldataunit?匚bitscpacketsEsegments匚framescdatastreams3.WhichofthefollowingarelayersoftheTCP/IPmodel?(Choosethree.)▽ApplicationrPhysicalVInternet0NetworkAccess厂Presentation4.Whichofthefollowinga
7、redatalinklayerencapsulationdetails?(Choosetwo.)0Aheaderandtrailerareadded・厂Dataisconvertedintopackets・VPacketsarepackagedintoframes・厂Framesaredividedintosegments.厂PacketsarechangedintobitsforInternettravel.5.WhichlayeroftheOSImodelprovidesnetworkservicestoprocessesinelectroni
8、cmailandfiletransferprograms?匚datalink匚transport匚networkEappl
