单项选择题
A.catalyst switches
B.adaptive security appliances
C.intrusion prevention systems
D.protect link gateway
单项选择题 The Services-Ready Engine is an optional module of the Cisco ISR family. It includes onboard CPU and memory to run advanced applications. Which of these is an example of an advanced application that runs on the Services-Ready Engine?（）
单项选择题 Which WLAN device is often used to make wireless connections between buildings or campuses?（）
单项选择题 Why is the Cisco Integrated Services Router product line A good choice for customers?（）