单项选择题 Refer to the following architectures, which one is able to supply a core infrastructure so that customers can capitalize quickly with the change of business requirements?（）

多项选择题 Refer to the exhibit. Which two of these accurately describe this routers supervisor redundancy status? （）(Choose two.)

单项选择题 Refer to the exhibit. What is the HSRP state and priority of this interface after HSRP reaches its steady state?（）