Which of the following is listed as a wireless security protocol?

• A. WPA3
• B. WEP
• C. VPN
• D. SIP

Answer: (B)

Wireless security protocols are designed to protect data on wireless links. WEP fits this role because it was created specifically to provide encryption for 802.11 wireless traffic, making it a recognized wireless security protocol. VPN, on the other hand, is not a wireless-link security protocol but a method to create secure tunnels between networks or hosts, usable over any network type. SIP is a signaling protocol used to set up and control sessions, not to secure the wireless data itself. While WPA3 is also a wireless security protocol, the option listed is historically identified as a wireless security protocol, and WEP is the classic example of one designed to protect wireless traffic (even though it’s now outdated and insecure compared with WPA2/WPA3).