In FortiOS, the Internet Service Database (ISDB) contains dynamically updated IP addresses, ports, and protocols for well-known cloud applications and internet services. The exhibit shows the SD-WAN rule configuration GUI where the "Internet service" field is actively available under the Destination parameters. To steer traffic specifically for Facebook and LinkedIn, the administrator can simply select these services directly from the ISDB drop-down list within the "Internet service" field. This method relies on predefined destination IP ranges rather than Layer 7 application control, providing an efficient and immediate way to route traffic for major platforms using the currently available GUI options.

A: A special license is not required to unlock destination fields in the GUI. ISDB definitions are natively integrated into FortiOS and updated via standard FortiGuard services.

C: There is no independent "feature visibility" setting specifically named "applications as destinations of the SD-WAN rule" to toggle this behavior.

D: Standalone FortiGate devices are fully capable of utilizing both internet services and applications as routing destinations within SD-WAN rules.

Fortinet, Inc. FortiOS 7.2 Administration Guide. Section: "SD-WAN Rules" -> "Creating SD-WAN rules". Document ID: 01-720-749449-20230620. (Details the configuration steps for specifying destinations using the Internet Service Database in SD-WAN rules).

Fortinet, Inc. FortiOS 7.2 Administration Guide. Section: "Policy and Objects" -> "Internet Service Database". (Explains how the ISDB maps well-known public services like Facebook and LinkedIn to specific IP addresses and ports for routing and policy enforcement).