问答题 You work as a network technician at Certkiller .com. Your boss， Mrs. Certkiller， is interested in WAN devices. Match the appropriate WAN device with the correct description.

多项选择题 WhichtwoWANaccessmethodsarespecifiedforasimplifiedandcost-effectiveCiscoSingle-SiteSecureNetworkFoundationDeploymentDesign？（）

单项选择题 Toprotectthenetworkfromexternalandinternalthreats，whereshouldCiscoIPSbeenabledonanISR？（）