多项选择题
A.runts
B.FCS errors
C.interface resets
D.late collisions
单项选择题 AnewBackupConnectionisbeingdeployedonaremotesiterouter.thestabilityoftheconnectionhasbeenaconcern.inordertoprovidemoreinformationtoEIGRPRegardingthisinterface，Youwishtoincorporatethe"Reliability"costmetricintheEIGRPCalculationwiththecommandmetricweights10101.WhatimpactwillthismodificationontheremotesiterouterhaveforotherexistingEIGRPneighborshipsfromthesameEIGRPDomain？（）
单项选择题 AbranchrouterisconfiguredwithanegressQoSpolicythatwasdesignedforatotalnumberof10concurrentVOIPCalls.DuetoExpansion，15VOIPCallsarenowrunningoverthelink，butafterthe14thcallwasestablished，allcallswereaffectedandthevoicequalitywasdramaticallydegraded.Assumingthatthereisenoughbandwidthonthelinkforallofthistraffic，whichpartoftheQOSconfigurationshouldbeupdatedduetothenewtrafficprofile？（）
多项选择题 Whichtwocommandsarerequiredtoenablemulticastonarouter，knowingthatthereceiversonlysupportsIGMPv2？（）