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200-301 · Question #1338

What is a service that is provided by a wireless controller?

The correct answer is B. It manages interference in a dense network.. A wireless controller provides Radio Resource Management (RRM) services to manage interference and optimize performance in dense wireless networks.

Submitted by femi9· Mar 5, 2026Network Access

Question

What is a service that is provided by a wireless controller?

Options

  • AIt mitigates threats from the internet.
  • BIt manages interference in a dense network.
  • CIt provides Layer 3 routing between wired and wireless devices.
  • DIt issues IP addresses to wired devices.

How the community answered

(16 responses)
  • B
    88% (14)
  • C
    6% (1)
  • D
    6% (1)

Why each option

A wireless controller provides Radio Resource Management (RRM) services to manage interference and optimize performance in dense wireless networks.

AIt mitigates threats from the internet.

Mitigating threats from the internet is primarily a function of firewalls, intrusion detection/prevention systems (IDS/IPS), or other security appliances, not a wireless controller's main role.

BIt manages interference in a dense network.Correct

Wireless LAN Controllers (WLCs) offer Radio Resource Management (RRM) capabilities that automatically optimize wireless network performance by adjusting AP power levels, channels, and load balancing, effectively managing interference in dense environments.

CIt provides Layer 3 routing between wired and wireless devices.

While some WLCs can provide basic inter-VLAN routing for wireless clients, Layer 3 routing between wired and wireless devices is typically handled by dedicated routers, not the primary service of a WLC.

DIt issues IP addresses to wired devices.

Issuing IP addresses (DHCP) can be a feature on some WLCs, but it is not their unique or primary service; DHCP is often handled by dedicated DHCP servers or routers for both wired and wireless devices.

Concept tested: Wireless LAN Controller (WLC) functions

Source: https://www.cisco.com/c/en/us/products/wireless/what-is-wireless-controller.html

Topics

#wireless controller#RF management#wireless interference

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