The answer is the CLI command `execute fortitoken-resync <token-serial>`. This command is correct because it forces the FortiGate to re-synchronize its internal counter and seed value with the physical or virtual FortiToken, correcting drift caused by time or usage mismatches. On the Fortinet NSE 4 Network Security Professional exam, this question tests your ability to manage two-factor authentication under the "FortiGate Authentication" domain, often appearing in a scenario where a user reports token rejection despite correct credentials. A common trap is confusing this with `execute fortitoken-update`, which updates firmware, not synchronization. Remember the key: "resync" fixes the counter, not the code itself. A useful memory tip is to think of the command as "reset sync" — the `resync` action realigns the token's rolling code with the FortiGate's expectation, ensuring the next OTP is accepted.
NSE4 Authentication and VPN Practice Question
This NSE4 practice question tests your understanding of authentication and vpn. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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.
You receive an alert that a user's FortiToken synchronization is off. You need to resynchronize the token. Which CLI command achieves this?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
execute fortitoken-resync <token-serial>
The command 'execute fortitoken-resync <token-serial>' is used to resynchronize a FortiToken with the FortiGate. This updates the token's seed and counter.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
diagnose user fortitoken resync <token-serial>
Why it's wrong here
The diagnose command does not have this subcommand; it's under execute.
✗
config user fortitoken edit <token-serial> set status activate
Why it's wrong here
This activates the token but does not resync it.
✗
execute fortitoken-update <token-serial>
Why it's wrong here
This command does not exist. The correct command is fortitoken-resync.
✓
execute fortitoken-resync <token-serial>
Why this is correct
Correct. This triggers a resynchronization of the token's OTP sequence.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Trap categories for this question
Command / output trap
The diagnose command does not have this subcommand; it's under execute.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the NSE4 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which NSE4 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Authentication and VPN — This question tests Authentication and VPN — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: execute fortitoken-resync <token-serial> — The command 'execute fortitoken-resync <token-serial>' is used to resynchronize a FortiToken with the FortiGate. This updates the token's seed and counter.
What should I do if I get this NSE4 question wrong?
Identify which NSE4 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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