NSE7 Enterprise Firewall and VDOMs Practice Question
This NSE7 practice question tests your understanding of enterprise firewall and vdoms. 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.
An admin runs 'diagnose sys session filter dport 443' and sees 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 established and has been active for 1 hour
Option C is correct because the output shows `proto=6` (TCP), `proto_state=01` (ESTABLISHED in Fortinet's session table), `duration=3600` seconds (1 hour), and `expire=3599` seconds (remaining lifetime). This combination indicates a fully established TCP session that has been active for one hour and is still valid, not blocked or in a transitional state.
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 being blocked by a firewall policy
Why it's wrong here
If blocked, the session would not appear in the session table.
✗
The session is in SYN_SENT state, waiting for a reply
Why it's wrong here
State '01' is established, not SYN_SENT (which would be '02').
✓
The session is established and has been active for 1 hour
Why this is correct
State '01' means established; duration is 3600 seconds = 1 hour.
Related concept
Read the scenario before looking for a memorised answer.
✗
The session is in TIME_WAIT state after a FIN
Why it's wrong here
TIME_WAIT would be state '04'.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse `proto_state=01` with a blocking state or a handshake-in-progress state, when in fact it specifically indicates an established TCP connection in Fortinet's session table.
Detailed technical explanation
How to think about this question
In FortiOS, the `diagnose sys session filter` command displays session table entries where `proto_state` is a hex value: `01` for ESTABLISHED, `02` for SYN_SENT, `03` for SYN_RECV, `04` for FIN_WAIT, `05` for TIME_WAIT, etc. The `duration` field shows seconds since session creation, and `expire` shows seconds until session timeout; for TCP ESTABLISHED sessions, the default idle timeout is 3600 seconds (1 hour), which matches the output. This command is critical for troubleshooting asymmetric routing or session timeouts in real-world deployments.
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 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
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.
Enterprise Firewall and VDOMs — This question tests Enterprise Firewall and VDOMs — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The session is established and has been active for 1 hour — Option C is correct because the output shows `proto=6` (TCP), `proto_state=01` (ESTABLISHED in Fortinet's session table), `duration=3600` seconds (1 hour), and `expire=3599` seconds (remaining lifetime). This combination indicates a fully established TCP session that has been active for one hour and is still valid, not blocked or in a transitional state.
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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