When configuring a wireless network through a router's graphical user interface, which security setting provides strong encryption for clients using a shared passphrase without the need for an authentication server?
Enable MAC address filtering to allow only known devices
Enable WPA2-Enterprise mode and configure a RADIUS server
Choose WEP encryption and enter a network key
Select WPA2-Personal mode and set a shared passphrase
Selecting WPA2-Personal allows the network to use Wi-Fi Protected Access II with a Pre-Shared Key (PSK), providing strong encryption with a shared passphrase. This method is suitable for small networks and does not require an external authentication server. WPA2-Enterprise requires a RADIUS server for authentication, which adds complexity and is used in larger enterprise environments. WEP is an outdated encryption method with known vulnerabilities and offers weak security. MAC address filtering controls which devices can connect but does not encrypt the network traffic, so it does not provide strong security on its own.
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Cisco CCNA 200-301
Security Fundamentals
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