What command would you use to restart the FortiGate unit?

The command to restart a FortiGate unit is "exec reboot." This command is a part of the operational mode of the FortiOS command line interface (CLI), which allows administrators to execute various management task commands, including rebooting the device.

When you enter "exec reboot," it properly triggers the shutdown sequence of the FortiGate unit, allowing it to cleanly terminate processes and reinitialize hardware components before powering back on. Using this command helps ensure that the device comes back online without potential data corruption or disruption to services.

Other commands listed do not adhere to the correct syntax or established command structure of FortiOS. For example, "restart system," "reboot device," and "system restart" do not correspond to valid CLI commands in FortiOS, making them ineffective for restarting the device. Understanding the exact command syntax is crucial for successful device management and operation within FortiGate environments.