Ryan wants to create an ad hoc wireless network so that he can share some important files with another employee of his company. Which of the following wireless security protocols should he choose…

WPA2-EAP relies on IEEE 802.1X and a backend RADIUS server to authenticate clients, which is an infrastructure-mode requirement that cannot be satisfied in an ad hoc peer-to-peer topology.

WPA-PSK authenticates devices using a pre-shared passphrase configured statically on each peer, eliminating the need for any external authentication infrastructure and making it compatible with ad hoc mode where two devices communicate directly without an access point.

WPA-EAP uses the Extensible Authentication Protocol with a centralized RADIUS server for credential validation, making it incompatible with ad hoc networks that have no such server infrastructure.

WEP uses a static shared key that is manually configured on each participating device, which means it has no dependency on infrastructure components and has supported ad hoc networking since its inception, despite its well-known cryptographic weaknesses.