Which combination best aligns with a secure wireless network architecture?

• A. Use WEP with shared keys and no segmentation
• B. Use strong encryption (WPA3), strong authentication, network segmentation, and rogue access point detection to minimize wireless risks
• C. Disable wireless entirely
• D. Rely solely on VPN for remote access

Answer: (B)

Securing wireless networks rests on four practices: strong encryption, strong authentication, proper segmentation, and visibility to catch rogue access points. Using WPA3 provides robust protection for data in flight, which is crucial because wireless traffic travels through the air and can be captured if not properly encrypted. Pairing that with strong authentication, such as 802.1X with a RADIUS server and EAP methods, ensures only trusted devices and users can join the network, reducing the chance of unauthorized access even if credentials are known.

Network segmentation takes the risk a step further by isolating wireless access into separate, minimal paths for different roles—corporate devices, guests, and IoT devices—so that compromising one segment doesn’t automatically expose critical resources. Rogue access point detection adds ongoing visibility, enabling quick identification and removal of unauthorized APs that could be used to sniff traffic or launch attacks.

Why other options fall short? WEP with shared keys is fundamentally insecure due to easily breakable keys and weak encryption, so it cannot meet modern risk standards. Disabling wireless altogether eliminates the convenience and benefits of wireless networks and isn’t a practical design choice. Relying solely on a VPN for remote access doesn’t secure the wireless LAN itself; it leaves the local wireless environment vulnerable to attacks like rogue APs and weak client authentication, and it doesn’t address segmentation or internal risk.

Together, these elements form a comprehensive, resilient wireless architecture that minimizes risk while maintaining secure, functional wireless connectivity.