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Spanning-Tree
Question1Refertotheexhibit.Basedontheinformationgiven.Whichswitchwillbeelectedrootbridgeandwhy?A.SwitchA,becauseithasthelowestMACaddressB.SwitchC,becauseithasthelowestpriorityC.SwitchB,becauseithasthehighestMACaddressD.SwitchC,becauseitisthemostcentrallylocatedswitchE.SwitchA,becauseitisthemostcentrallylocatedswitchF.SwitchD,becauseithasthehighestpriorityCorrectAnswer:B
Question2Whatvalueisprimarilyusedtodeterminewhichportbecomestherootportoneachnonrootswitchinaspanning-treetopology?A.lowestportMACaddressB.portprioritynumberandMACaddress.C.VTPrevisionnumberD.highestportprioritynumber.E.pathcostCorrectAnswer:E
Question3Whichtwoprotocolsareusedbybridgesand/orswitchestopreventloopsinalayer2network?(Choosetwo.)802.1dVTP802.1qSTPSAPCorrectAnswer:AD
Question4WhichtwostatesaretheportstateswhenRSTPhasconverged?(choosetwo)A.blockingB.learningC.discardingD.forwardingE.listeningCorrectAnswer:CD
Question5WhichcommandenablesRSTPonaswitch?A.spanning-treemoderapid-pvstB.spanning-treeuplinkfastC.spanning-treebackbonefastD.spanning-treemodemstCorrectAnswer:A
Question6Refertotheexhibit.GiventheoutputshownfromthisCiscoCatalyst2950,whatisthemostlikelyreasonthatinterfaceFastEthernet0/10isnottherootportforVLAN2?A.ThisswitchhasmorethanoneinterfaceconnectedtotherootnetworksegmentinVLAN2.B.ThisswitchisrunningRSTPwhiletheelecteddesignatedswitchisrunning802.1dSpanningTree.C.Thisswitchinterfacehasahigherpathcosttotherootbridgethananotherinthetopology.D.ThisswitchhasalowerbridgeIDforVLAN2thantheelecteddesignatedswitch.CorrectAnswer:C
Question7Refertotheexhibit.WhyhasthisswitchnotbeenelectedtherootbridgeforVLAN1?A.Ithasmorethanoneinterfacethatisconnectedtotherootnetwork
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