Final answer:
Device upgrades on a Fortigate can be performed through either the Web GUI or the Command Line Interface (CLI), using user-friendly graphical methods or command-based procedures respectively.
Step-by-step explanation:
To perform a device upgrade on a Fortigate, you have two primary options: the Web GUI (Graphical User Interface) or the Command Line Interface (CLI). The Web GUI is a user-friendly graphical interface that allows for straightforward upgrading procedures, usually by navigating to the System Information dashboard, where you'll find options to upload and apply firmware updates. The CLI, on the other hand, is a text-based interface that can be used for various configurations and management tasks, including firmware upgrades, by using specific commands.
Performing an upgrade through the CLI usually involves using the 'execute firmware upgrade' command after ensuring the new firmware image is accessible to the device, typically via TFTP or FTP. The options listed such as Fabric Connector and Security Profiles are not where device upgrades are performed; they are related to other cybersecurity functionalities within the Fortigate ecosystem.