In which two situations does a backup WAN link with another provider make sense in a network design? (Choose two.)

You are working on a service provider network. You will provide network services to multiple companies across your network, while maintaining separation of traffic for different corporate entities.
What are two high-level design alternatives that will meet your requirement? (Choose two.)

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

What are the last two steps of business continuity planning? (Choose two.)

What type of device can be installed to increase a broadcast domain?