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CWAP-402 · Question #45
CWAP-402 Question #45: Real Exam Question with Answer & Explanation
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Question
An HT STA does not receive an ACK for a first-attempt data frame that it transmitted. Assuming this STA is not using BlockAcks in this case, what happens to the HT STA's EDCA contention window?
Options
- AThe slot time within the contention window decreases by 50%.
- BIt varies because the backoff algorithm is random.
- CThe contention window approximately doubles in size.
- DThe contention window is not affected by failed Data frame delivery.
- EThe contention window is immediately closed, and the frame is retransmitted.
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