单项选择题 The network administrator would like to generate synthetic traffic using the Service Assurance Agent contained in Cisco IOS. Which CiscoWorks network management application will be used to report the latency and availability for configured traffic operations on an end-to-end and hop-byhop (router-to router) basis？（）

单项选择题 In base e-Commerce module designs, where should firewall perimeters be placed?（）

多项选择题 Which three best practices should be implemented at the campus backbone submodule to support the server farm module?（）