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Real Fortinet NSE4 practice exam questions for easy pass!
Updated: Jul 24, 2026
No. of Questions: 303 Questions & Answers with Testing Engine
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Fortinet NSE4 Exam Overview:
| Certification Vendor: | Fortinet |
| Exam Name: | Network Security Expert 4 Written Exam (400) |
| Exam Number: | NSE4_FGT-400 |
| Available Languages: | English |
| Certificate Validity Period: | 2 years |
| Exam Price: | USD 200 (may vary by region) |
| Passing Score: | Approximately 60% - 70% (varies by exam version) |
| Exam Duration: | 120 minutes |
| Related Certifications: | NSE 3 Network Security Associate Fortinet Certified Professional Network Security Fortinet Certified Solution Specialist |
| Real Exam Qty: | 60 - 70 (varies by exam version) |
| Exam Format: | Multiple choice, Multiple select |
| Recommended Training: | Fortinet NSE 4 Study Resources FortiGate Administrator Course |
| Exam Registration: | Fortinet Training Institute Exam Registration Pearson VUE Fortinet Exams |
| Sample Questions: | Fortinet NSE4 Sample Questions |
| Exam Way: | Online proctored or authorized testing center (Pearson VUE) |
| Pre Condition: | Recommended: NSE 3 or equivalent networking/security knowledge. No strict prerequisite required. |
| Official Syllabus URL: | https://www.fortinet.com/training-certification |
Fortinet NSE4 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: High Availability and Monitoring | - HA clustering concepts - Logging, monitoring, and reporting - Troubleshooting tools and diagnostics |
| Topic 2: Network Security Fundamentals | - Fortinet Security Fabric overview - Security concepts and threat landscape |
| Topic 3: Security Services | - Antivirus, IPS, and application control - Web filtering and DNS filtering - SSL inspection and certificate management |
| Topic 4: FortiGate Administration | - Initial configuration and system settings - User authentication and identity-based policies - Firewall policies and objects |
| Topic 5: Network Design and Routing | - NAT configuration - Static and dynamic routing - SD-WAN fundamentals |
| Topic 6: VPN Technologies | - IPsec VPN configuration - SSL VPN setup and troubleshooting |
Fortinet Network Security Expert 4 Written Exam (400) Sample Questions:
1. Which statement describes how traffic flows in sessions handled by a slave unit in an active-active HA cluster?
A) Packets arrived at both units simultaneously, but only the salve unit forwards the session.
B) Packets are first sent to the master unit, which then forwards the packets to the slave unit.
C) Packets are sent directly to the slave unit using the HA virtual MAC address.
D) Packet are sent directly to the slave unit using the slave physical MAC address.
2. Examine the following CLI configuration:
config system session -ttl
set default 1800
end
What statement is true about the effect of the above configuration line?
A) Sessions can be idle for no more than 1800 seconds.
B) The maximum length of time a session can be open is 1800 seconds.
C) After 1800 seconds, the end user must re-authenticate.
D) after a session has been open for 1800 seconds, the FortiGate sends a keepalive packet to both client and server.
3. Which statements correctly describe transparent mode operation? (Choose three.)
A) Permits inline traffic inspection and firewalling without changing the IP scheme of the network.
B) Ethernet packets are forwarded based on destination MAC addresses, NOT IP addresses.
C) All interfaces of the transparent mode FortiGate device most be on different IP subnets.
D) The FortiGate acts as transparent bridge and forwards traffic at Layer-2.
E) The transparent FortiGate is clearly visible to network hosts in an IP trace route.
4. Which of the following statements must be true for a digital certificate to be valid? (Choose two.)
A) It must be still within its validity period
B) It must be signed by a "trusted" CA
C) It must be listed as valid in a Certificate Revocation List (CRL)
D) The CA field must be "TRUE"
5. What methods can be used to deliver the token code to a user that is configured to use two-factor authentication? (Choose three.)
A) Code books.
B) Email.
C) FortiToken.
D) SMS phone message.
E) Browser pop-up window.
Solutions:
| Question # 1 Answer: B | Question # 2 Answer: A | Question # 3 Answer: A,B,D | Question # 4 Answer: A,B | Question # 5 Answer: B,C,D |
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