Which factor will play a primary role in determining whether the network architect needs to plan a two-tier or three-tier topology for the campus LAN?

A network architect is planning a complete access layer and core upgrade for customer’s campus LAN. The campus has four large buildings, each requiring between 1000 and 3000 edge ports.

Which factor will play a primary role in determining whether the network architect needs to plan a two-tier or three-tier topology for the campus LAN?
A . The number of fiber links between each building and the building where the core switches reside
B . Whether the customer requires a wireless solution
C . The high number of edge ports that the solution requires
D . Whether the customer can afford core switches that support intelligent Resilient Framework (IRF)

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Answer: C