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Question 113 - CWNA-109 discussion

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What facts are true regarding controllers and APs in a Split MAC architecture?

A.
An IP tunnel is established between the AP and controller for AP management and control functions.
Answers
A.
An IP tunnel is established between the AP and controller for AP management and control functions.
B.
Using centralized data forwarding, APs never tag Ethernet frames with VLAN identifiers or 802.1p CoS.
Answers
B.
Using centralized data forwarding, APs never tag Ethernet frames with VLAN identifiers or 802.1p CoS.
C.
With 802.1X/EAP security, the AP acts as the supplicant and the controller acts as the authenticator.
Answers
C.
With 802.1X/EAP security, the AP acts as the supplicant and the controller acts as the authenticator.
D.
Management and data frame types must be processed locally by the AP, while control frame types must be sent to the controller.
Answers
D.
Management and data frame types must be processed locally by the AP, while control frame types must be sent to the controller.
Suggested answer: A

Explanation:

The fact that is true regarding controllers and APs in a Split MAC architecture is thatan IP tunnel is established between the AP and controller for AP management and control functions. A Split MAC architecture is a WLAN architecture where some of the MAC layer functions are performed by the APs (such as encryption, decryption, and frame acknowledgement) and some are performed by the controllers (such as authentication, association, roaming, and QoS). To communicate with each other, the APs and controllers establish an IP tunnel that carries the management and control frames between them. The IP tunnel can use protocols such as Lightweight Access Point Protocol (LWAPP) or Control And Provisioning of Wireless Access Points (CAPWAP).Reference:[CWNP Certified Wireless Network Administrator Official Study Guide: Exam CWNA-109], page 372; [CWNA: Certified Wireless Network Administrator Official Study Guide: Exam CWNA-109], page 362.

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asked 16/09/2024
Chris OMalley
26 questions
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