Fortinet NSE 4 - FortiOS 6.4

Here you have the best Fortinet NSE4_FGT-6.4 practice exam questions

  • You have 121 total questions across 25 pages (5 per page)
  • These questions were last updated on March 15, 2026
  • This site is not affiliated with or endorsed by Fortinet.
Question 1 of 121
Which two statements are true when FortiGate is in transparent mode? (Choose two.)
Answer

Suggested Answer

The suggested answer is A, D.

When FortiGate is operating in transparent mode, it functions similarly to a Layer 2 bridge. Therefore, by default, all interfaces are part of the same broadcast domain, allowing traffic to pass through without the need for separate subnets on each interface, which makes option A accurate. Furthermore, FortiGate forwards frames without altering the source or destination MAC addresses, maintaining the integrity of the original data link layer information, which makes option D correct. As such, these two statements accurately describe the behavior of a FortiGate in transparent mode.

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Question 2 of 121
What inspection mode does FortiGate use if it is configured as a policy-based next-generation firewall (NGFW)?
Answer

Suggested Answer

The suggested answer is D.

When FortiGate is configured as a policy-based next-generation firewall (NGFW), it uses flow-based inspection. Flow-based inspection analyzes traffic by capturing and examining a sample of the traffic flow rather than inspecting the entire content. This method is efficient for real-time threat detection and prevention, making it suitable for policy-based NGFW configurations.

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Question 3 of 121
Which two statements about IPsec authentication on FortiGate are correct? (Choose two.)
Answer

Suggested Answer

The suggested answer is A, B.

For IPsec authentication on FortiGate, a stronger authentication can be achieved by enabling extended authentication (XAuth) to request the remote peer to provide a username and password. Additionally, FortiGate supports both pre-shared key and signature as authentication methods, providing flexibility in how the authentication process can be handled. Therefore, the correct statements are regarding enabling XAuth for stronger authentication and FortiGate's support for pre-shared key and signature as authentication methods.

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Question 4 of 121
Which scanning technique on FortiGate can be enabled only on the CLI?
Answer

Suggested Answer

The suggested answer is A.

Heuristics scan is the scanning technique on FortiGate that can only be enabled through the CLI. This type of scan uses heuristic analysis to identify unknown or emerging threats based on patterns and behavior rather than relying solely on known virus definitions. As it is a specific configuration that involves more advanced settings, it requires access to the CLI for activation.

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Question 5 of 121
Which two policies must be configured to allow traffic on a policy-based next-generation firewall (NGFW) FortiGate? (Choose two.)
Answer

Suggested Answer

The suggested answer is C, D.

To allow traffic on a policy-based next-generation firewall (NGFW) like FortiGate, two key policies must be configured: Security policy and SSL inspection and authentication policy. The Security policy is essential for controlling the flow of traffic and ensuring proper inspection and enforcement according to defined rules. The SSL inspection and authentication policy is crucial for inspecting encrypted traffic, performing authentication, and ensuring that secure traffic complies with security requirements. These policies work in tandem to provide comprehensive security and traffic management on the firewall.

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About the Fortinet NSE4_FGT-6.4 Certification Exam

About the Exam

The Fortinet NSE4_FGT-6.4 (Fortinet NSE 4 - FortiOS 6.4) validates your knowledge and skills. Passing demonstrates proficiency and can boost your career prospects in the field.

How to Prepare

Work through all 121 practice questions across 25 pages. Focus on understanding the reasoning behind each answer rather than memorizing responses to be ready for any variation on the real exam.

Why Practice Exams?

Practice exams help you familiarize yourself with the question format, manage your time, and reduce anxiety on the test day. Our NSE4_FGT-6.4 questions are regularly updated to reflect the latest exam objectives.