A government agency requires the setup of an ultra-secure communication system for handling top-secret information. Which of the following represents the most appropriate approach to achieve the maximum level of security through physical isolation?
Setting up the system on a completely air-gapped network.
Installing a high-end firewall with strict access control lists.
Using dedicated cabling to connect systems while still being part of the internet.
Creating multiple VLANs to segregate top-secret communication from other data traffic.
Creating an air-gapped network that is not connected to the internet or any other networks is the most secure form of physical isolation. This prevents any form of remote access or cyberattack that depends on network connectivity. Using dedicated cabling still leaves the system connected to external networks; VLANs provide only logical segmentation on shared infrastructure; and firewalls merely filter traffic on connected networks, so none of those options achieve true physical isolation.
Ask Bash
Bash is our AI bot, trained to help you pass your exam. AI Generated Content may display inaccurate information, always double-check anything important.
What is an air-gapped network?
Open an interactive chat with Bash
Why are VLANs not as secure as air-gapped networks?
Open an interactive chat with Bash
How does a high-end firewall differ from an air-gapped solution?