多项选择题
What three major tasks are performed by a Designated Intermediate System in an ISIS pseudonodeenvironment？（）
A.Updating the pseudonode LSP B.maintaining pseudonode link-state information C.creating the pseudonode D.flooding LSPs over the LAN E.election of the pseudonode
单项选择题 WhatdoesRPLstandfor？（）
多项选择题 WhichthreecomponentsareincludedintheCiscoIOSXRinfrastructure？（）
单项选择题 HowmanymessagesdoesInternetKeyExchangeusetonegotiateSAcharacteristicswhenitrunsinaggressivemode？（）
