多项选择题 What are two benefits of the Cisco TAC?（）

单项选择题 The Cisco Catalyst Express 500 Series Switch is targeted for businesses with how many users?（）

多项选择题 XYZ LTD wants to connect Cisco IP Phones and Cisco Aironet Access Points to the network. The customer also wants to use the PoE features included in the Cisco Catalyst Express 500 Series Switches. Which two models can provide this features?（）