CWNP
PW0-270 · Question #49
What must occur before an HT STA operating in an EDCA BSS can transmit a data frame over the wireless medium? (Choose 3)
The correct answer is C. The appropriate interframe space must expire. D. The backoff timer for the AC must equal zero. E. Its CCA must report that the medium is idle. See the full explanation below for the reasoning.
Question
What must occur before an HT STA operating in an EDCA BSS can transmit a data frame over the wireless medium? (Choose 3)
Options
- AIts NAV must be equal to one.
- BThe STA must receive a BlockAck, resetting the NAV to zero.
- CThe appropriate interframe space must expire.
- DThe backoff timer for the AC must equal zero.
- EIts CCA must report that the medium is idle.
- FThe AP must issue the STA a TXOP.
How the community answered
(30 responses)- A7% (2)
- B13% (4)
- C77% (23)
- F3% (1)
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