This NSE7 practice question tests your understanding of advanced threat protection. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. 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 run 'diagnose sys session filter dport 443' and see the following output:
proto=6 proto_state=01 duration=3600 expire=3599
What does this indicate?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The session is an established TCP session with about one hour remaining before timeout
The output shows a TCP session (proto=6) with state 01, which in Fortinet's session table indicates an established TCP connection. The duration of 3600 seconds and expire value of 3599 seconds mean the session has been active for about one hour and has approximately one hour remaining before the idle timeout expires. This matches option B.
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.
✗
The session is in SYN_SENT state and cannot be established
Why it's wrong here
SYN_SENT is state 02; state 01 is established.
✓
The session is an established TCP session with about one hour remaining before timeout
The session has a duration of 3600 seconds and will expire immediately
Why it's wrong here
Expire=3599 means it expires in 3599 seconds, not immediately.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse the proto_state value 01 with SYN_SENT (which is 02) or assume the expire field indicates total session lifetime rather than remaining idle timeout.
Detailed technical explanation
How to think about this question
In FortiOS, the session table uses proto=6 for TCP (per IANA protocol numbers) and proto_state=01 for established connections (TCP state ESTABLISHED). The expire field shows the remaining idle timeout in seconds; for TCP, the default idle timeout is typically 3600 seconds (1 hour), but this can be modified via firewall policy or global settings. Understanding these session states is critical for troubleshooting connectivity issues and firewall performance.
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.
TExam Day Tips
→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 NSE7 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 exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Advanced Threat Protection — This question tests Advanced Threat Protection — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The session is an established TCP session with about one hour remaining before timeout — The output shows a TCP session (proto=6) with state 01, which in Fortinet's session table indicates an established TCP connection. The duration of 3600 seconds and expire value of 3599 seconds mean the session has been active for about one hour and has approximately one hour remaining before the idle timeout expires. This matches option B.
What should I do if I get this NSE7 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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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