To prevent intruders from accessing your wireless network, you can implement the following measures:
A. Encrypt network traffic with WPA or WEP: Encryption is an essential security measure that protects your network from unauthorized access. WPA (Wi-Fi Protected Access) and WEP (Wired Equivalent Privacy) are two commonly used encryption protocols. WPA provides stronger security than WEP and is recommended. By encrypting your network traffic, you ensure that only authorized users with the correct encryption key can access your network.
B. Restrict access to trusted MAC addresses: Every device that connects to a network has a unique MAC (Media Access Control) address. By restricting access to trusted MAC addresses, you can create a whitelist of devices that are allowed to connect to your network. This prevents unauthorized devices from accessing your network, even if they have the correct encryption key.
C. Both: Implementing both encryption (WPA or WEP) and MAC address filtering provides an additional layer of security. Encryption protects the network traffic from being intercepted and accessed by unauthorized users, while MAC address filtering restricts access to only trusted devices.
D. None of the above: This option is incorrect because both A (encrypting network traffic with WPA or WEP) and B (restricting access to trusted MAC addresses) are effective measures to prevent intruders from accessing your wireless network.
Therefore, the correct answer is C. Both options A and B. This option is correct because using both encryption and MAC address filtering provides a more secure wireless network.