单项选择题
A. includes all modules needed to meet any network design
B. defines flexible boundaries between modules for scalability requirements
C. clearly defines module boundaries and demarcation points to identify where traffic is
D. requires specific core, distribution, and access layer requirements to match the model
单项选择题 What is the first step that you would use Cisco Product Advisor for when selecting a router for an Edge solution?（）
多项选择题 Dense Wavelength Division Multiplexing (DWDM) is an important innovation in optical networks.Which two descriptions best define DWDM?（）
多项选择题 You are the network consultant from Cisco.com. Please point out two statements correctly describe an IPS device（）