Free Fortinet FCSS_EFW_AD-7.6 Exam Practice Questions & Explanations

Last updated on: Sep 4, 2026
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Question 1

Refer to the exhibit, which contains a partial VPN configuration.

What can you conclude from this VPN IPsec phase 1 configuration?

Answer Options
Correct Answer: A
Explanation

This IPsec Phase 1 configuration defines a dynamic VPN tunnel that can accept connections from multiple peers. The settings chosen here suggest a configuration optimized for networks with intermittent traffic patterns while ensuring resources are used efficiently.

Key configurations and their impact:

set type dynamic This allows multiple peers to establish connections dynamically without needing predefined IP addresses.

set ike-version 2 Uses IKEv2, which is more efficient and supports features like EAP authentication and reduced rekeying overhead.

set dpd on-idle Dead Peer Detection (DPD) is triggered only when the tunnel is idle, reducing unnecessary keep-alive packets and improving resource utilization.

set add-route enable FortiGate automatically adds the route to the routing table when the tunnel is established, ensuring connectivity when needed.

set proposal aes128-sha256 aes256-sha256 Uses strong encryption and hashing algorithms, ensuring a secure connection.

set keylife 28800 Sets a longer key lifetime (8 hours), reducing the frequency of rekeying, which is beneficial for stable connections.

Because DPD is set to on-idle, the tunnel will not constantly send keep-alive messages but will still ensure connectivity when traffic is detected. This makes the configuration ideal for networks with regular but non-continuous traffic, balancing security and resource efficiency.

Question 2

Which specialized acceleration hardware must you use for VXLAN?

Answer Options
Correct Answer: D
Question 3

What is the effect of configuring tcp-mss-sender and tcp-mss-receiver?

Answer Options
Correct Answer: B
Question 4

During the maintenance window, an administrator must sniff all the traffic going through a specific firewall policy, which is handled by NP6 interfaces. The output of the sniffer trace provides just a few packets.

Why is the output of sniffer trace limited?

Answer Options
Correct Answer: B
Explanation

FortiGate devices with NP6 (Network Processor 6) acceleration offload traffic directly to hardware, bypassing the CPU for improved performance. When auto-asic-offload is enabled in a firewall policy, most of the traffic does not reach the CPU, which means it won't be captured by the standard sniffer trace command.

Since NP6-accelerated traffic is handled entirely in hardware, only a small portion of initial packets (such as session setup packets or exceptions) might be seen in the sniffer output. To capture all packets, the administrator must disable hardware offloading using:

config firewall policy

edit

set auto-asic-offload disable

end

Disabling ASIC offload forces traffic to be processed by the CPU, allowing the sniffer tool to capture all packets.

Question 5

How can FortiGate_B advertise only 172.16.1.248/30 using BGP?

Answer Options
Correct Answer: B