What are the primary functions of a wireless LAN controller (WLC)?

The correct answer is 'All of the above' because a wireless LAN controller (WLC) serves multiple essential functions that collectively enhance the management and efficiency of a wireless network.

First, managing access points is a primary function of a WLC. It centrally controls and configures all the connected access points in a wireless network, allowing for streamlined deployments and consistent settings across the network. This centralized management simplifies tasks such as firmware updates, configuration changes, and troubleshooting, as administrators do not need to manage each access point individually.

Secondly, optimizing network performance is another crucial function. The WLC can dynamically allocate resources, adjust power levels, and balance loads across access points to enhance user experience. By monitoring network traffic and making real-time adjustments, the WLC helps ensure that the network operates at its best, providing reliable connectivity to users and applications.

Lastly, enforcing policies is a vital role of the WLC, which helps ensure that security and quality of service (QoS) policies are consistently applied across the network. The WLC can manage user access controls, apply bandwidth limits, and prioritize traffic based on different types of applications or users, contributing to a secure and efficient wireless environment.

Together, these functions underline the critical role of a wireless LAN controller