Question 33

MAC filtering is the best way to secure the network.

Implementing MAC filtering allows the technician to specify which devices can connect to the wireless network based on their unique MAC addresses, effectively limiting access to only authorized devices.

A) MAC filtering

This option is correct because MAC filtering provides a layer of security by allowing only devices with specified MAC addresses to connect to the network. This helps prevent unauthorized access, as devices not on the list will be unable to join the network, enhancing overall security.

B) Port forwarding

Port forwarding is not a security measure but rather a technique used to allow external devices to access services on a private network. While it is essential for certain applications, it does not protect the network from unauthorized access and could potentially expose the network to risks if not configured correctly.

C) Disabling the SSID broadcast

While disabling SSID broadcast can make the network less visible to casual users, it is not a robust security measure. Skilled attackers can still detect hidden networks, so this option alone does not provide effective protection against unauthorized access.

D) Screen subnet

Screening a subnet refers to the process of managing network traffic between different subnets and is not directly related to securing a wireless network. This method does not restrict access to devices and thus does not address the need for securing a wireless router from unauthorized users.

Conclusion

In summary, MAC filtering stands out as the most effective method for securing the network from unauthorized access, as it allows for precise control over which devices can connect. Other options, such as disabling SSID broadcast and screening subnets, do not provide the same level of control or security, making them less effective choices. Therefore, MAC filtering is the best option to ensure network security.