Which feature(s) are most likely supported by enterprise-class WLAN controllers?

Enterprise-class WLAN controllers are designed to provide robust features to manage and optimize wireless networks effectively. The correct choice encompasses several advanced functionalities that are critical for maintaining high-performance wireless communication in enterprise environments.

Link aggregation is a technique that combines multiple physical network links into a single logical link to increase bandwidth and provide redundancy. This is crucial in enterprise networks, as it helps to prevent bottlenecks and ensures a reliable connection to infrastructure.

802.1p Quality of Service (QoS) is a standard used to prioritize traffic over a network. In a WLAN, it helps ensure that latency-sensitive applications like voice and video communications receive the necessary bandwidth and low delay, which is vital for maintaining service quality in busy environments.

DSCP (Differentiated Services Code Point) is another QoS mechanism that enables the differentiation of traffic types at the IP level. By managing packet priorities more effectively, DSCP enhances overall network performance, especially in environments with diverse traffic types.

Captive web portals are widely used in enterprise networks for guest access management. They provide a secure and customizable way for users to authenticate before gaining access to the network, enhancing security and user experience.

With these functionalities, enterprise-class WLAN controllers can effectively manage bandwidth, prioritize critical applications, and provide secure access