CHEETSHEETS:BSCN(640-503)　

　　COPYRIGHTKEENINTERACTIVE2000　

　　LastUpdate:8/7/00　

　　1.Whichofthefollowingaretrueregardingroutefiltering?　

　　a.Itusesthesametechniqueaspacketfiltering;it’sbasedonstandardorextendedaccess-lists　

　　b.ItisrequiredwhenusingEIGRPandOSPFatthesametime　

　　c.Unlikepacketfiltering(whichusesinvertedsubnetmasks,routefilteringusesnormalsubnetmasks　

　　d.Routefilteringisusedonlywhileperformingrouteredistribution　

　　2.Whichofthesearebenefitsofincorporatinghierarchicaladdressing?　

　　a.Youcansummarizemultipleroutesintosingleroutesummaries,makingthenetworkmorescalable　

　　b.Acontiguousaddressassignmentallowsthemostefficientuseofaddress　

　　c.Reductioninthenumberofroutingtableentriesforparticipatingrouters　

　　d.Amoreefficientallocationofaddressesnetwork-wide　

　　e.Areducednumberofroutingtableentriesforparticipatingrouters　

　　3.HowcanasingleIPstatementindicatemanyIPaddresses?　

　　a.Source-routebridge　

　　b.Routesummarization　

　　c.Helperaddress　

　　d.Defaultgateway　

　　e.Passiveinterface　

　　4.WhatessentialreasonsmakeOSPFbetterthanRIP1?　

　　a.OSPFcanselectpathsbasedonbandwidth　

　　b.Link-StateprotocolsgenerallyhavefasterconvergencethanDistance-Vector　

　　c.OSPFsupportsVLSM　

　　d.OSPFhasnohopcountlimitationbecauseitisbasedonpathcost　

　　e.OSPFcanselectpathsbasedonbandwidth