单项选择题
A.It is supplied by the CSU/DSU.
B.It is supplied by the far end router.
C.It is determined by the clock rate command.
D.It is supplied by the Layer 1 bit stream timing.
单项选择题 WhatisonereasonthatWPAencryptionispreferredoverWEP?（）
单项选择题 ArouterlearnsaboutaremotenetworkfromEIGRP,OSPF,andastaticroute.Assumingallroutingprotocolsareusingtheirdefaultadministrativedistance,whichroutewilltherouterusetoforwarddatatotheremotenetwork?（）
多项选择题 WhichtablesofEIGRProuteinformationareheldinRAMandmaintainedthroughtheuseofhelloandupdatepackets?(Choosetwo.)（）