Which of the following is NOT a type of user group in FortiGate?

In FortiGate, user groups are essential for organizing users and applying specific policies and access controls. The correct answer to the question about which choice is NOT a type of user group in FortiGate is dynamic.

Dynamic user groups are commonly used in many security solutions, but in the context of FortiGate, the term typically refers to groups that are created based on certain attributes or conditions. However, the choices presented here include specific types of user groups that are defined within the FortiGate environment.

'Firewall' is a fundamental concept relating to the security device itself and does not represent a user group. 'Guest' user groups are commonly utilized in FortiGate to provide limited access for temporary users. RSSO, which stands for RADIUS Single Sign-On, is a method used for authenticating users seamlessly but is not classified as a user group.

As such, dynamic does not represent a recognized user group type in FortiGate's classification, making it the correct choice for this question. Understanding user group types is crucial for effectively managing user access and security policies within network configurations on FortiGate devices.