Final answer:
EAP (Extensible Authentication Protocol) is the wireless security mode that requires a RADIUS server to authenticate users, frequently used in various authentication scenarios.The correct answer is d) EAP (Extensible Authentication Protocol).
Step-by-step explanation:
The correct answer is d) EAP (Extensible Authentication Protocol).
EAP is a wireless security mode that requires a RADIUS server to authenticate wireless users. It provides stronger security than WEP and WPA by using encryption algorithms such as AES or TLS. EAP also supports multi-factor authentication, such as smart cards or biometric scanners, for added security.
The RADIUS server acts as an authentication server, verifying the user's credentials and granting access to the wireless network. This provides an additional layer of security beyond just encrypting the wireless transmission.