What is one use case for designing a 2-tier campus LAM instead of using a 3-tier?

What is one use case for designing a 2-tier campus LAM instead of using a 3-tier?
A . The campus has small buildings with only a few wiring closets.
B . The network has grown beyond a few building aggregation points
C . Access aggregation points are not scaling to meet traffic demands.
D . Cross-campus traffic has grown beyond We capacity of a single collapsed core

View Answer

Answer: A

Explanation:

A 2-tier campus LAN architecture, consisting of the core and access layers, is typically suitable for smaller campuses or networks with limited numbers of wiring closets. This simplified architecture eliminates the need for a dedicated aggregation layer, which is more common in larger, more complex network environments (the 3-tier architecture). In a small campus setting with only a few wiring closets, a 2-tier design can provide sufficient performance and scalability, reducing complexity and potentially lowering costs. This architecture allows for direct connectivity between the access layer, where end devices connect to the network, and the core layer, which routes traffic to and from the campus network. The use of a 2-tier architecture in such scenarios is driven by the network’s size and the simplicity of its requirements, making it an efficient and effective choice.