CTS frames tell other clients that you have received a RTS frame.

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Multiple Choice

CTS frames tell other clients that you have received a RTS frame.

Explanation:
In 802.11 networks that use RTS/CTS, a station sends an RTS to request permission to transmit, and the destination answers with a CTS to grant that permission. The CTS contains a duration that tells all nearby devices that a data frame will follow between the sender and receiver, so they should defer. Because the CTS is sent only after the RTS is received by the destination, other devices overhearing the CTS can infer that the RTS reached its target. So CTS frames do indicate to other clients that the RTS was received and that the sender is cleared to proceed with the data transmission.

In 802.11 networks that use RTS/CTS, a station sends an RTS to request permission to transmit, and the destination answers with a CTS to grant that permission. The CTS contains a duration that tells all nearby devices that a data frame will follow between the sender and receiver, so they should defer. Because the CTS is sent only after the RTS is received by the destination, other devices overhearing the CTS can infer that the RTS reached its target. So CTS frames do indicate to other clients that the RTS was received and that the sender is cleared to proceed with the data transmission.

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