A medium-sized enterprise is deploying a wireless network across multiple floors in their office building, with the need for centralized management of numerous access points and seamless user roaming. Which of the following devices is BEST suited to meet these requirements?
A high-capacity Router to handle inter-floor traffic
A Layer 2 switch with VLAN segmentation for each floor
Individual Access Points configured separately on each floor
A Wireless LAN controller to manage all Access Points