NSE4 Question #475: Real Exam Question with Answer & Explanation

Question

A new version of FortiOS firmware has just been released. When you upload new firmware, which is true?

Options

• AIf you upload the firmware image via the boot loader's menu from a TFTP server, it will not
• BNo settings are preserved. You must completely reconfigure.
• CNo settings are preserved. After the upgrade, you must upload a configuration backup file.
• DYou must use FortiConverter to convert a backup configuration file into the syntax required by

Explanation

The method used to upload new FortiOS firmware dictates whether the existing configuration will be preserved or if a clean installation will occur.

Common mistakes.

• B. A standard firmware upgrade performed through the GUI or CLI typically preserves most settings; only specific methods like boot loader TFTP might not.
• C. Most firmware upgrades do preserve settings, so stating 'no settings are preserved' is generally untrue for standard upgrade paths.
• D. FortiConverter is primarily for migrating configurations between different FortiGate models or major FortiOS versions with syntax changes, not for routine firmware upgrades on the same device.

Concept tested. FortiGate firmware upgrade methods and configuration preservation

Reference. https://docs.fortinet.com/document/fortigate/7.4.0/administration-guide/200925/upgrading-downgrading-firmware

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