单项选择题 Which Cisco product is a hardware component that supports content filtering and other gateway security functions for the Catalyst 6500 Series?（）

单项选择题 You are the network administrator for passguide.com. Which device will you install in your computer to make wireless connections you and a network?（）

多项选择题 You are the network consultant from passguide.com. Do you know what attacks are software based attacks that disable your computer and attack user by e-mail? （）