Cyber Security Certifications Practice Test – Prep, Practice Exam & Study Guide

The technology that allows for the isolation of a network of servers so they cannot interact with others is a Virtual Local Area Network (VLAN). A VLAN segments a physical network into multiple logical networks, which enhances security and performance by controlling traffic flows between devices. Each VLAN can be configured to operate independently, meaning that devices within one VLAN cannot communicate directly with devices in another VLAN without proper routing between them. This is particularly useful in environments where sensitive data must be protected or where different departments need their own secure space within the same physical infrastructure.

While routers, VPNs, and bridges are all essential networking technologies, they serve different purposes. A router connects different networks and facilitates communication between them, which does not contribute to isolation. A VPN (Virtual Private Network) allows secure remote access to a network but does not inherently isolate sub-networks. Bridges, on the other hand, connect different segments of the same network to enable communication, which goes against the principle of isolation provided by VLANs. Thus, VLANs are the correct choice for isolating network segments effectively.