Which of the following WLAN security policies support open link authentication?

WEP (Wired Equivalent Privacy) supports open authentication, which allows any client to associate with the network without verifying credentials. This form of authentication is considered insecure by modern standards, as it provides minimal protection for network access. WPA and WPA2 rely on pre-shared keys or 802.1X authentication, which are more secure and do not use open authentication​.