WPA Authentication Modes

1. All WPA methods support two authentication modes
   1. Personal mode
      1. A Pre-Shared Key is used for authentication
         1. The PSK is not sent OTA
         2. A four-way handshake is used for authentication, and the PSK is used to generate keys
      2. Common in small networks
   2. Enterprise mode
      1. 802.1X is used with an authentication server (RADIUS/TACACS+ etc.)
      2. All EAP methods are supported

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OSI or TCP/IP Layer

CCNA Exam Topic

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