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300-365 · Question #168

The Cisco Unified Wireless Product supports WMM. On which Wi-Fi Alliance interoperability standard is this based?

The correct answer is A. 802.11e. WMM (Wi-Fi Multimedia) is a Wi-Fi Alliance certification program directly based on IEEE 802.11e, which introduced QoS enhancements to wireless LANs including traffic prioritization.

Wireless Deployment

Question

The Cisco Unified Wireless Product supports WMM. On which Wi-Fi Alliance interoperability standard is this based?

Options

  • A802.11e
  • B802.11i
  • C802.1x
  • D802.11ah

How the community answered

(40 responses)
  • A
    93% (37)
  • C
    5% (2)
  • D
    3% (1)

Why each option

WMM (Wi-Fi Multimedia) is a Wi-Fi Alliance certification program directly based on IEEE 802.11e, which introduced QoS enhancements to wireless LANs including traffic prioritization.

A802.11eCorrect

IEEE 802.11e is the amendment that defined QoS mechanisms for Wi-Fi, including EDCA traffic categories and TSPEC. The Wi-Fi Alliance built WMM as an interoperability certification derived directly from the 802.11e standard, making it the precise technical foundation for WMM on Cisco Unified Wireless infrastructure.

B802.11i

802.11i defines the robust security network (RSN) framework including WPA2 and CCMP encryption, which addresses security not QoS.

C802.1x

802.1X is an IEEE port-based network access control protocol used for authentication, not a Wi-Fi QoS standard.

D802.11ah

802.11ah defines the HaLow low-power, long-range Wi-Fi specification for IoT devices and has no relation to QoS or WMM.

Concept tested: WMM standard basis and 802.11e QoS

Source: https://www.cisco.com/c/en/us/td/docs/wireless/controller/8-10/config-guide/b_cg810/qos.html

Topics

#WMM#802.11e#QoS#Wi-Fi Alliance

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