单项选择题
A. single run
B. multi-homed
C. stub domain EBGP
D. direct BGP peering
单项选择题 You are the Cisco Network Designer in Cisco.com. Which statement is correct regarding NBAR and NetFlow?（）
单项选择题 Whichsite-to-siteVPNsolutionallowsCiscorouters，PIXFirewalls，andCiscohardwareclientstoactasremoteVPNclientsinordertoreceivepredefinedsecuritypoliciesandconfigurationparametersfromtheVPNheadendatthecentralsite？（）
单项选择题 WhyisSTPrequiredwhenVLANsspanaccesslayerswitches？（）