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How Secure Is Your Wireless Network? Safeguarding Your Wi-Fi LAN by CCNA Lee Barken - CISSP MCP, CPA

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Control Frames

  • Request to Send (RTS)— A station asks an AP for permission to send data. This is a traffic management feature designed to help reduce collisions.

  • Clear to Send (CTS)— After an RTS is received, the AP will respond with a CTS frame indicating it is ready to receive data.

  • Acknowledgement (ACK)— After a station or AP receives an error-free frame, it sends an ACK frame to the sender to let it know that the transmission was successful.

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