单项选择题
A. connection speed
B. number of remote sites
C. features to be supported
D. types of devices at the remote site
多项选择题 WhichthreeobjectiveswouldbemetbydesigningLayer3switchingintheCampusBackboneofamediumsizeinstallation？（）
单项选择题 TosecurelytransportEIGRPtraffic，anetworkadministratorwillbuildVPNsbetweensites.WhatisthebestmethodtoaccomplishthetransportofEIGRPtraffic？（）
单项选择题 It’saconfigurationthatexpertsarecallinga"firewallsandwich，"withthesecondfirewallprovidingasecondlevelofloadbalancingaftertrafficdown.Whatismeantbytheterm"firewallsandwich"？（）