Devices for Managing a Corporate WLAN

D.

The device used to manage a corporate wireless local area network (WLAN) is a wireless controller, which is the best choice from the options given.

A wireless NAS (Network-Attached Storage) is a device that is used to store and share files over a network, but it is not designed to manage a WLAN.

A wireless bridge is a device that connects two separate networks or segments of a network, typically over a long distance. It can be used to extend the range of a WLAN, but it is not used for managing the network.

A wireless router is a device that connects multiple devices to a network and is responsible for routing traffic between those devices and the internet. While a wireless router can be used to manage a small WLAN, it is not typically used for managing a corporate WLAN due to the need for more advanced features and scalability.

A wireless controller, on the other hand, is a specialized device that is designed specifically for managing large-scale wireless networks. It allows network administrators to centrally manage and configure access points, monitor network performance, and enforce security policies. A wireless controller can also provide advanced features such as load balancing, quality of service (QoS) management, and roaming between access points.

In summary, a wireless controller is the most appropriate device for managing a corporate WLAN due to its advanced features and scalability.