Which Cisco NAC Appliance design is the most scalable in large Layer 2-to-distribution implementation?
A. Layer 2 out-of-band
B. Layer 2 in-band
C. Layer 3 out-of-band
D. Layer 3 in-band
Correct Answer: B
“Layer 2 In-Band Designs The Layer 2 in-band topology is the most common deployment option.
[…] This is the most scalable design in large L2-to-distribution environments, because this design can be
transparently implemented in the existing network supporting multiple access layer switches. It supports all network infrastructure equipment. The Cisco NAS supports per- user ACLs.”