An administrator wishes to generate a report showing Top Traffic by service type, but wants to exclude SMTP traffic from the report. Which of the following statements best describes how to do this?

In FortiGate or FortiAnalyzer reporting, the Data Filter allows specifying a service by its port number (25) or name (smtp). By entering '25/smtp' in the Service field and then selecting the 'NOT' checkbox, the report will effectively exclude all traffic identified as SMTP, fulfilling the requirement.

The syntax `service="!smtp"` is not the correct or standard method for excluding services within the Data Filter's Generic Field section for report generation.

Unchecking 'mlog' is not a standard or direct method to exclude SMTP traffic from a Top Traffic by service type report; 'mlog' relates more to specific mail-related log types, not general service exclusion.

There is no 'Exclude Service' field where you simply type a service name when editing a chart; exclusion is typically managed through specific filter conditions like the 'NOT' checkbox on the service field.