https://docs.fortinet.com/document/fortianalyzer/6.2.5/administration-guide/448471/creating-a-security-fabric-adom

https://packetplant.com/fortigate-and-fortianalyzer-resolve-source-and-destination-ip/
"As a best practice, it is recommended to resolve IPs on the FortiGate end. This is because you get both source and destination, and it offloads the work from FortiAnalyzer. On FortiAnalyzer, this IP resolution does destination IPs only"

https://fortinetweb.s3.amazonaws.com/docs.fortinet.com/v2/attachments/6d9f8fb5-6cf4-11e9-81a4-00505692583a/FortiAnalyzer-6.0.5-Administration-Guide.pdf page 119 There is an option for "uploading reports to server" under configuring the output profile. The available options are: SFTP, FTP and SCP. You have to be careful on the question itself. The question tells you to "upload reports to a server (external server). Which means, a server has been configured already in this case prior to enabling the "upload reports to server".