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Question 57 - HPE6-A85 discussion

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What does a wireless client do first when its countdown timer reaches zero and it receives a Transmit Opportunity (TXOP)?

A.
It immediately sends its Data Frames and receives an ACK from the AP.
Answers
A.
It immediately sends its Data Frames and receives an ACK from the AP.
B.
It sends a CTS-to-self announcement to the ESP gateway.
Answers
B.
It sends a CTS-to-self announcement to the ESP gateway.
C.
It sends a CTS-to-self announcement to the AP and all other clients.
Answers
C.
It sends a CTS-to-self announcement to the AP and all other clients.
D.
It sends a reassociation request frame to the AP and sends its Data Frames.
Answers
D.
It sends a reassociation request frame to the AP and sends its Data Frames.
Suggested answer: A

Explanation:

When a wireless client's countdown timer (also known as a backoff timer) reaches zero during contention-based access periods, and it receives a Transmit Opportunity (TXOP), it has the right to transmit its data frames on the medium. After sending the data frames, it expects an acknowledgment (ACK) from the Access Point (AP) to ensure the frames were received successfully.

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asked 16/09/2024
irwandi irwandi
33 questions
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