This NSE7 practice question tests your understanding of advanced threat protection. 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.
An administrator is troubleshooting why a custom IPS signature for protocol anomaly detection is not triggering. The signature is designed to detect abnormal DNS query lengths. Which TWO steps should the administrator take to verify the signature is working? (Choose two.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Verify that the IPS sensor containing the signature is applied to the correct firewall policy
To verify a custom IPS signature, the administrator should test it with matching traffic and check the IPS log to confirm detection. Also, ensuring the IPS sensor includes the signature and is applied to a policy is necessary.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Reboot the FortiGate to reset the IPS engine
Why it's wrong here
Rebooting is unnecessary and disruptive.
✗
Disable the firewall policy to see if the signature triggers
Why it's wrong here
Disabling the policy would block traffic, not help verification.
✓
Verify that the IPS sensor containing the signature is applied to the correct firewall policy
Why this is correct
If the sensor is not applied, the signature will not inspect traffic.
Related concept
Static NAT maps one inside address to one outside address.
✓
Generate traffic that matches the signature and check the IPS logs for alerts
Why this is correct
Matching traffic should generate an alert in the IPS log.
Related concept
Static NAT maps one inside address to one outside address.
✗
Increase the signature's severity to see it in logs
Why it's wrong here
Severity does not affect logging; all alerts are logged.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
→Identify inside and outside interfaces first.
→Check whether the scenario needs static NAT, dynamic NAT or PAT.
→Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
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.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related NSE7 NAT questions on configuration and troubleshooting.
Advanced Threat Protection — This question tests Advanced Threat Protection — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Verify that the IPS sensor containing the signature is applied to the correct firewall policy — To verify a custom IPS signature, the administrator should test it with matching traffic and check the IPS log to confirm detection. Also, ensuring the IPS sensor includes the signature and is applied to a policy is necessary.
What should I do if I get this NSE7 question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related NSE7 NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
This NSE7 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 NSE7 exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.