What feature allows FortiGate devices to separate different security policies for enhanced management?

The correct answer is Virtual Domains (VDOMs). VDOMs enable FortiGate devices to create multiple virtual instances of the device that operate independently. Each VDOM can have its own security policies, interfaces, routing, and management, allowing organizations to segregate and tailor their security management according to specific needs or departments. This enhances security posture by ensuring that different parts of the network can have customized policies without interference from one another.

In environments where compliance, multi-tenancy, or administrative separation is important, VDOMs provide a distinct advantage. They empower organizations to manage diverse security requirements effectively, often without the need for additional hardware, leading to cost efficiencies and easier management.

While traffic filtering, security zones, and access control lists are important components of network security, they do not provide the same level of separation of management and policy configuration as VDOMs do. Traffic filtering is focused on inspecting and controlling the flow of traffic based on defined policies, security zones provide a way to group interfaces to simplify policy management, and access control lists are used to permit or deny traffic based on predefined conditions. None of these features offer the granular separation and enhanced management capabilities that VDOMs provide.