A customer is questioning the additional infrastructure that is needed to design a three-tiered, hierarchical network. Which option is a benefit of the distribution layer in a traditional design?
A. provides additional security services against unauthorized access
B. extends the Layer 2 and Layer 3 boundary to the core layer
C. isolation of faults between the access and core layers
D. creates access layer resiliency
C is the correct answer.
correct answer is C