NSE4 System and Network Administration Practice Question
Which ONE of the following is a valid method to upgrade the FortiGate firmware? (Choose one.)
⚠ Common exam trap
It's easy for candidates to confuse backup/restore or reboot commands with firmware upgrade commands, or incorrectly assume that only GUI-based methods are valid, while the TFTP upgrade command is also a legitimate and commonly tested method.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use the GUI under System > Firmware.
The FortiGate GUI under System > Firmware allows uploading and installing firmware images, a standard upgrade method. Option B is incorrect because the command syntax is reversed; the correct syntax is 'execute upgrade image tftp <filename> <ip>'. Options C, D, and E are not firmware upgrade commands (they are backup/restore and reboot, respectively). Therefore, only option A is a valid upgrade method among the choices.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Use the GUI under System > Firmware.
Why this is correct
Correct. The FortiGate GUI under System > Firmware is a valid method to upgrade firmware.
- ✗
Use the command 'execute upgrade image tftp <ip> <filename>'.
Why it's wrong here
Incorrect. The command 'execute upgrade image tftp <ip> <filename>' has the arguments in the wrong order; the correct order is filename then IP address.
- ✗
Use the command 'execute backup config tftp'.
Why it's wrong here
Incorrect. This command is for backing up the configuration via TFTP, not for upgrading firmware.
- ✗
Use the command 'execute reboot'.
Why it's wrong here
Incorrect. This command reboots the FortiGate without upgrading firmware.
- ✗
Use the command 'execute restore config tftp'.
Why it's wrong here
Incorrect. This command restores a configuration via TFTP, not for upgrading firmware.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This NSE4 practice question is part of Courseiva's free Fortinet certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the NSE4 exam.