300-360 Question #129: Real Exam Question with Answer & Explanation

The correct answer is A: distribution layer. In a centralized (also called unified or controller-based) wireless architecture, all AP traffic is tunneled back to the Wireless LAN Controller (WLC) via CAPWAP. Because the WLC must handle traffic from many APs across the entire campus, it should connect at the distribution lay

Question

A company has deployed a centralized wireless architecture a their headquarters. In this type of deployment, to which network layer do you recommend that the WLC connect?

Options

Adistribution layer
BData center layer
Csession layer
Daccess layer

Explanation

In a centralized (also called unified or controller-based) wireless architecture, all AP traffic is tunneled back to the Wireless LAN Controller (WLC) via CAPWAP. Because the WLC must handle traffic from many APs across the entire campus, it should connect at the distribution layer. The distribution layer aggregates uplinks from all access layer switches and provides high-bandwidth, redundant connections, making it the optimal placement for a device that processes traffic from the entire network. Placing the WLC at the access layer would limit scalability, and placing it in the data center layer introduces unnecessary latency and complexity. The 'session layer' is an OSI model layer, not a physical network placement.

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