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Difficulty: EasyNetwork Components Roles and Functions

A network administrator is deploying a centralized Wireless LAN Controller (WLC) within an enterprise campus network. Which two operational functions are primary responsibilities of the WLC? (Select two.)

  1. Automating radio frequency (RF) management and dynamic channel assignment across Lightweight Access PointsAnswer
  2. Providing centralized configuration management and security policy enforcement for managed Access PointsAnswer
  3. C
    Hosting and executing bare-metal virtual machines directly on underlying hardware without a host operating system
  4. D
    Reading Layer 2 discovery Type-Length-Value (TLV) fields to determine neighbor device hardware interfaces

Answer

The primary operational responsibilities of a Wireless LAN Controller (WLC) include automating radio frequency (RF) management across Lightweight Access Points and providing centralized configuration management and security policy enforcement.
Wireless LAN Controllers (WLCs) serve as the central intelligence in a split-MAC architecture. They handle control-plane functions including dynamic radio frequency (RF) management, channel assignment, transmit power control, centralized authentication, firmware updates, and security policy distribution to lightweight access points.

Step-by-Step Solution

1
Identify the primary role of a Wireless LAN Controller (WLC) in a split-MAC architecture.
The WLC offloads control plane functions—such as provisioning, security policies, RF management, and firmware management—from lightweight access points (LAPs).
Centralizing AP management simplifies enterprise wireless deployments and ensures consistent security and performance enforcement.
2
Evaluate the candidate options to select the two valid WLC functions.
Dynamic RF management/channel assignment and centralized configuration/policy management are correct. Hypervisor virtualization functions and CDP/LLDP TLV neighbor discovery reflect unrelated hardware and protocol roles.
Only RF management and centralized configuration/policy enforcement align with WLC responsibilities.

Key Concept

Wireless LAN Controller (WLC) Roles and Operational Functions
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Topics

Network Components Roles and Functions

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