Comprehensive and Detailed Explanation From FortiSOAR 7.3 Exact Extract study guide:

According to the FortiSOAR 7.3 Deployment and Administration Guide under the 'Licensing FortiSOAR' section:

Connectivity Requirements: For the FortiSOAR license deployment and validation process to succeed, the instance must have outbound connectivity to https://globalupdate.fortinet.net. This URL is specifically used by the FortiSOAR license manager to fetch entitlements, verify the subscription status, and retrieve product information from the Fortinet licensing servers. If this connectivity is blocked (and a FortiManager is not being used as a local FDN proxy), the license deployment will fail.4

License Limits: Every FortiSOAR license---whether Perpetual, Subscription, or Trial---strictly enforces a maximum number of active users (concurrent or named) and often a limit on the number of automation actions per day.5

Perpetual Trial Licenses (often called 'Free Trial') are restricted to a specific user count (typically 2 or 3) and a daily action limit (e.g., 200 or 1000 actions). Therefore, options C and D are incorrect as they suggest 'no limit on user count.'

URL Clarification: While update.fortiguard.net is a common Fortinet endpoint for security signatures (IPS/AV), FortiSOAR's specific licensing and entitlement communication is directed to the globalupdate.fortinet.net service.