What is a key benefit of using RBAC in FortiOS?

Using Role-Based Access Control (RBAC) in FortiOS is essential for enhancing the security and management of network resources. The primary benefit of RBAC is that it ensures users only have the necessary access privileges needed to perform their tasks. This principle of least privilege minimizes potential security risks by restricting users from accessing sensitive information and critical functions that are not relevant to their role in the organization.

By tailoring access rights based on the specific responsibilities of users, RBAC also helps in maintaining compliance with security policies and regulatory standards, as it limits the scope of access to information and systems. It enables organizations to manage user roles more effectively, streamlining the process of granting and revoking access as needed.

While the options relating to unrestricted access, improved network speed, and unrestricted guest access present attractive features, they do not align with the fundamental security principles that RBAC embodies. Unrestricted access can lead to vulnerabilities, while the other options do not directly address the core functionality and purpose of RBAC in a secure network environment.