An administrator is replacing a failed device on FortiManager by running the following command:execute device...

To replace the faulty device with the new device, take the following steps:

1. Note the device name of the original FortiGate.

If the replacement device is already listed as unregistered, then you will need to delete it from the

unregistered device list in the root ADOM.

2. Add the serial number of the replacement FortiGate.

After the replace command is executed, FortiManager updates the serial number in its database.

3. Verify that the new device serial number is associated with the faulty device in FortiManager.

You can do this using the CLI or the System Information widget of FortiGate.

4. Send a request from the replacement device to register it with FortiManager

Reference [Page 283] - https://ebin.pub/fortinet-fortimanager-study-guide-for-fortimanager-72.html