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PW0-270 · Question #48

Which statements accurately describe IEEE 802.11 EDCA collision handling in a WMM-compliant infrastructure WLAN? (Choose 2)

The correct answer is A. When frames collide within a QoS STA, data frames from lower priority ACs behave (as it relates B. Collisions between contending EDCAFs within a QoS STA are resolved within the QoS STA. See the full explanation below for the reasoning.

Question

Which statements accurately describe IEEE 802.11 EDCA collision handling in a WMM-compliant infrastructure WLAN? (Choose 2)

Options

  • AWhen frames collide within a QoS STA, data frames from lower priority ACs behave (as it relates
  • BCollisions between contending EDCAFs within a QoS STA are resolved within the QoS STA
  • CWhen a frame transmission on the wireless medium fails, the transmitter may not transmit
  • DThe WMM specification requires use of RTS/CTS as part of the EDCAF within each QoS STA to
  • EAfter frames collide within a QoS STA and the lower priority AC subsequently gains a TXOP, the

How the community answered

(61 responses)
  • A
    84% (51)
  • C
    10% (6)
  • D
    3% (2)
  • E
    3% (2)

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