NSE4 System and Network Administration Practice Question
An administrator wants to upgrade the FortiGate firmware from version 6.4.9 to 7.0.1. What is the most important consideration before proceeding?
⚠ Common exam trap
Many exam-takers assume a configuration backup is the most critical step, but Fortinet specifically tests that verifying the upgrade path is the primary consideration to prevent a non-bootable device.
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
✓
Verify the upgrade path and check for any required intermediate versions
FortiGate firmware upgrades must follow a validated upgrade path to avoid configuration incompatibilities or boot failures. Version 6.4.9 to 7.0.1 requires an intermediate upgrade to 7.0.0 first, as direct jumps across major versions or skipping required intermediate releases can corrupt the firmware image or render the device unbootable. Fortinet publishes explicit upgrade paths in the release notes, and ignoring them is the most common cause of failed upgrades.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Verify the upgrade path and check for any required intermediate versions
Why this is correct
Fortinet only guarantees a clean upgrade when you follow the documented firmware upgrade path from your current version to the target release. Intermediate versions are often mandatory because each major release can change the configuration schema, firewall object syntax, and internal database structure; skipping them can cause the upgrade to abort or produce corrupt settings. The correct first step is always to consult the FortiOS Upgrade Path tool and the release notes to identify any required stepping stones before attempting the move.
- ✗
Upgrade to the latest 7.0.x directly without intermediate steps
Why it's wrong here
Directly jumping from an older supported version, such as a 5.6 or 6.0 release, straight to the latest 7.0.x patch is not permitted by Fortinet's support matrix. The FortiGate image itself may reject the installation, or if it installs, the configuration conversion process can fail because it expects a previous intermediate version's data structures. Moreover, features that are deprecated or changed across multiple versions may not be handled correctly when the system tries to load the old configuration. You must upgrade sequentially to each required major/minor version in the official path to reach 7.0.x safely.
- ✗
Disable all firewall policies before upgrading
Why it's wrong here
Disabling all firewall policies before an upgrade is neither required nor recommended for the firmware process. The FortiGate does not use policy state to decide whether a firmware image can be installed; it simply decompresses the image, writes it to the boot partition, and reboots. In fact, disabling policies can cause a loss of connectivity with the FortiGate, especially if you are upgrading remotely through a policy-controlled interface, potentially leaving you without access during the reboot. The firmware upgrade process is independent of policy enforcement, so keeping policies enabled does not interfere with the upgrade.
- ✗
Ensure the configuration is backed up
Why it's wrong here
Backing up the configuration is an essential safety step, but it does not solve the primary problem of version compatibility on its own. A configuration backup is only guaranteed to restore cleanly to the same firmware version from which it was taken; it cannot be used to 'skip' the required upgrade path. Even if you restore a backup after a failed direct upgrade, you are still back on your original firmware and must still perform the intermediate upgrades. Therefore, while you should always back up, the decisive factor for a successful version jump is verifying the officially supported upgrade path first.
Visual reference
Go deeper
Related to this question
About these practice questions
One of 773 original NSE4 practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. Learn why practice questions differ from exam dumps →
JA
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.