When setting up a wireless LAN in the controller's GUI to use an external authentication server for client authentication, which security method should you choose?
WPA2 Enterprise is the security method that uses an external authentication server, such as a RADIUS server, for authenticating clients. It provides enhanced security by requiring each client to authenticate with unique credentials, making it suitable for enterprise environments. WPA2 Personal uses a pre-shared key (PSK) and does not involve an external server. WEP is an outdated and insecure method that can use both PSK and open authentication but is not recommended. Open Authentication allows clients to connect without any authentication, offering no security.
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What is WPA2 Enterprise and how does it work?
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What is an external authentication server, and why is it important?
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Cisco CCNA 200-301
Network Access
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