Explain its purpose and the difference between a Layer 3 versus a Layer 2 Switch for VLANs and how they work.

A. Layer 3 is used to intelligently forward (route) packets while Layer 2 switches cant route packets based upon IP addresses

B. Layer 3 switches can logically segment a network into two or more VLANs, while Layer 2 switches easily retrieve packets and forward them very quickly (at near wire speed)

C. Layer 3 is less expensive than Layer 2 switches, both do the same job

D. All of the above

E. A and B above only

F. B and C above only