What is an example of a port-based network access control protocol?

You are planning to upgrade the core network infrastructure at your corporation. This upgrade will require a number of advanced features to support your requirements. You do not want any proprietary protocols in the new design.
Which three technologies would you include in the design? (Choose three.)

Which three steps are part of business continuity planning? (Choose three.)

What are two characteristics of using the Virtual Chassis technology in the aggregation tier of a data center? (Choose two.)

What are three environmental characteristics that affect the campus network design? (Choose three.)