65. A network administrator wants to update a geofencing policy to limit remote access to the corporate network based on country location. Which of the following would the administrator most likely leverage?

Answer: D

Explanation:

The administrator would most likely leverage IP address blocks.

To enforce a geofencing policy that restricts remote access based on country location, the administrator would utilize IP address blocks. This method allows for the identification and control of network access based on the geographical origin of IP addresses.

A) MAC filtering

MAC filtering is a security method that restricts network access based on the Media Access Control (MAC) addresses of devices. While it can limit access to specific devices, it does not provide geographical restrictions and is therefore not suitable for implementing a geofencing policy based on country location.

B) Administrative distance

Administrative distance is a concept used in routing protocols to determine the trustworthiness of routes learned from different sources. It does not relate to access control based on geographical location and thus cannot be leveraged for a geofencing policy.

C) Bluetooth beacon signals

Bluetooth beacon signals are used for proximity-based services and are not suitable for remote access control over a network. They function at a much shorter range compared to the requirements for geofencing based on country locations, making them irrelevant in this context.

D) IP address blocks

Utilizing IP address blocks is the most effective approach for implementing a geofencing policy. By restricting access to specific ranges of IP addresses associated with certain countries, the administrator can successfully manage and limit remote access based on geographical location.

Conclusion

IP address blocks are the definitive choice for the network administrator looking to enforce geofencing based on country location. Other options, such as MAC filtering, administrative distance, and Bluetooth beacon signals, do not provide the necessary geographical control and are therefore inadequate for this purpose. The ability to segment access based on IP addresses directly aligns with the goals of the geofencing policy.