Which design method is achieved by layering the network control plane above a redundant physical infrastructure?

What are two reasons for a company to prefer a hybrid approach rather than a mixed approach while transitioning to a software-defined network? (Choose two.)

Refer to the exhibit Company XYZ must design a DMVPN tunnel between the three sites Chicago is going to act as the NHS and the company wants DMVPN to detect peer endpoint failures Which technology should be used in the design?

An external edge router provides connectivity from a service provider to an enterprise Which two Internet edge best practices meet compliance regulations? (Choose two.)

In implementing the CIA triad, an organization must follow a general set of best practices. Which best practice is applicable for availability?