Refer to the exhibit.

A standard, Layer 2 campus network design is pictured. Which numbered box represents the
distribution layer?

A.
#1

B.
#2

C.
#3

D.
#4

Explanation:
#1 Access
#2 Distribution
#3 Core
#4 Server Farm / Data Center
#5 WAN Module
#1 – is the access layer, since it interfaces directly with the clients
#3 – is the core layer, since these switches have a direct connection (highest resiliency) and they
interface directly with the WAN module
#4 – is the datacenter layer, because it interfaces directly with the campus servers
#5 – is the WAN module, it interfaces with the internet