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)