This NSE4 practice question tests your understanding of system and network administration. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A FortiGate administrator is planning an upgrade from FortiOS 6.4 to 7.2. Which THREE steps should be performed before the upgrade? (Choose three.)
Verify hardware compatibility with the target firmware
Some models may not support newer versions.
Check the upgrade path and required intermediate versions
To avoid unsupported jumps.
Back up the current configuration
Essential to restore if upgrade fails.
Remove all firewall policies
Why wrong: Not necessary and would disrupt operations.
Enable automatic firmware checks
Why wrong: Not required before upgrade.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Verify hardware compatibility with the target firmware
Verifying hardware compatibility with the target firmware is essential because FortiGate models have specific hardware limitations (e.g., CPU, RAM, storage) that may not support newer FortiOS versions. For example, older models like the FortiGate 100D cannot upgrade beyond FortiOS 6.0, and attempting to install 7.2 could result in a failed boot or bricked device. This step ensures the hardware meets the minimum requirements for the target firmware.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Verify hardware compatibility with the target firmware
Why this is correct
Some models may not support newer versions.
Related concept
Read the scenario before looking for a memorised answer.
Check the upgrade path and required intermediate versions
Why this is correct
To avoid unsupported jumps.
Related concept
Read the scenario before looking for a memorised answer.
Back up the current configuration
Why this is correct
Essential to restore if upgrade fails.
Related concept
Read the scenario before looking for a memorised answer.
Remove all firewall policies
Why it's wrong here
Not necessary and would disrupt operations.
Enable automatic firmware checks
Why it's wrong here
Not required before upgrade.
Common exam traps
The trap here is that candidates may think removing firewall policies is necessary to avoid compatibility issues during the upgrade, but FortiOS automatically handles policy migration, and deleting them only adds unnecessary risk and downtime.
Detailed technical explanation
FortiOS upgrades follow a strict upgrade path defined by Fortinet, often requiring intermediate versions (e.g., 6.4.10 to 7.0.1 to 7.2.0) to ensure database schema and configuration format compatibility. The backup of the configuration (typically via CLI command 'execute backup config tftp' or GUI) is critical because if the upgrade fails, the administrator can restore the original configuration to a known working state, avoiding a complete reconfiguration.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
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FAQ
System and Network Administration — This question tests System and Network Administration — Read the scenario before looking for a memorised answer..
The correct answer is: Verify hardware compatibility with the target firmware — Verifying hardware compatibility with the target firmware is essential because FortiGate models have specific hardware limitations (e.g., CPU, RAM, storage) that may not support newer FortiOS versions. For example, older models like the FortiGate 100D cannot upgrade beyond FortiOS 6.0, and attempting to install 7.2 could result in a failed boot or bricked device. This step ensures the hardware meets the minimum requirements for the target firmware.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
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.
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