简答题 What are the three main types of networks that must be considered when defining a security policy？

问答题WhatisthepurposeoftheRouteTagfieldintheRIPv2message？

问答题Youaresubnetinginthenetwork，outofnetworkaddress，what’sfeaturecanaddonemoreaddress？

问答题ExplainRouteAggregationinBGP.

问答题InBGP，wecanuseRouteReflectorandfullmesh.Whyshouldweusethese？

问答题Neitherexternalroutesnorinterarearouteswillinjectintothisarea.Whatistheareatypeandhowcanyouconfigureit？