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The FCSS - SD-WAN 7.4 Architect (FCSS_SDW_AR-7.4)

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FCSS_SDW_AR-7.4 Exam Dumps
  • Exam Code: FCSS_SDW_AR-7.4
  • Vendor: Fortinet
  • Certifications: Fortinet Certified Solution Specialist
  • Exam Name: FCSS - SD-WAN 7.4 Architect
  • Updated: Mar 25, 2026 Free Updates: 90 days Total Questions: 68 Try Free Demo

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Fortinet FCSS_SDW_AR-7.4 Exam Domains Q&A

Certified instructors verify every question for 100% accuracy, providing detailed, step-by-step explanations for each.

Question 1 Fortinet FCSS_SDW_AR-7.4
QUESTION DESCRIPTION:

Refer to the exhibits.

FCSS_SDW_AR-7.4 Q1

You use FortiManager to manage the branch devices and configure the SD-WAN template. You have configured direct internet access (DIA) for the IT department users. Now. you must configure secure internet access (SIA) for all local LAN users and have set the firewall policies as shown in the second exhibit.

Then, when you use the install wizard to install the configuration and the policy package on the branch devices, FortiManager reports an error as shown in the third exhibit.

Which statement describes why FortiManager could not install the configuration on the branches?

  • A.

    You must direct SIA traffic to a VPN tunnel.

  • B.

    You cannot install firewall policies that reference an SD-WAN zone.

  • C.

    You cannot install firewall policies that reference an SD-WAN member.

  • D.

    You cannot install SIA and DIA rules on the same device.

Correct Answer & Rationale:

Answer: C

Explanation:

FortiManager enforces a strict distinction:

" Firewall policies must reference SD-WAN zones, not individual SD-WAN members, when used in conjunction with SD-WAN templates. Attempting to install a policy that references a specific member (interface) will result in a deployment error, as member-level targeting is not supported in SD-WAN policy abstraction. This enforces centralized policy consistency and proper SD-WAN operation. "

Ensuring policies target zones allows FortiGate to dynamically select the optimal member.

Question 2 Fortinet FCSS_SDW_AR-7.4
QUESTION DESCRIPTION:

Refer to the exhibit.

FCSS_SDW_AR-7.4 Q2

Which statement best describe the role of the ADVPN device in handling traffic?

  • A.

    This is a spoke that has received a direct shortcut query from a remote spoke.

  • B.

    This is a hub, and two spokes, 192.2.0.1 and 10.0.3.101, establish a shortcut.

  • C.

    This is a hub that has received a shortcut query from a spoke and has forwarded it to another spoke.

  • D.

    This is a spoke that has received a shortcut query from a remote hub.

Correct Answer & Rationale:

Answer: B

Explanation:

The log shows messages on HUB1-VPN1 where the device processes a SHORTCUT_QUERY and performs NAT hole punching (peer at 192.2.0.1:4500). This indicates that the device is acting as a hub, helping two spokes (192.2.0.1 and 10.0.3.101) establish a direct ADVPN shortcut tunnel between each other, instead of routing their traffic through the hub.

Question 3 Fortinet FCSS_SDW_AR-7.4
QUESTION DESCRIPTION:

The FortiGate devices are managed by ForliManager, and are configured for direct internet access (DIA). You confirm that DIA is working as expected for each branch, and check the SD-WAN zone configuration and firewall policies shown in the exhibits.

FCSS_SDW_AR-7.4 Q3

FCSS_SDW_AR-7.4 Q3

FCSS_SDW_AR-7.4 Q3

Then, you use the SD-WAN overlay template to configure the IPsec overlay tunnels. You create the associated SD-WAN rules to connect existing branches to the company hub device and apply the changes on the branches.

After those changes, users complain that they lost internet access. DIA is no longer working.

Based on the exhibit, which statement best describes the possible root cause of this issue?

  • A.

    The SD-WAN overlay template defines a zone for each underlay interface and moves the interfaces into those zones.

  • B.

    The SD-WAN overlay template didn’t configure a firewall policy to allow traffic through the overlay.

  • C.

    The SD-WAN overlay template redefines the interface gateway addresses if they are defined with metadata variables.

  • D.

    The SD-WAN overlay template updates the SD-WAN template and the rules.

Correct Answer & Rationale:

Answer: A

Explanation:

The SD-WAN overlay template defines a zone for each underlay interface and moves the interfaces into those zones. This statement perfectly describes the likely sequence of events. The template, when applied, re-organizes the interfaces and zones, causing the existing firewall policy that relies on the old zone configuration to fail. This is the most plausible root cause.

Question 4 Fortinet FCSS_SDW_AR-7.4
QUESTION DESCRIPTION:

You have a FortiGate configuration with three user-defined SD-WAN zones and two members in each of these zones. One SD-WAN member is no longer in use in health-check and SD-WAN rules. You want to delete it.

What happens if you delete the SD-WAN member from the FortiGate GUI?

  • A.

    FodiGate accepts the deletion and removes routes as required.

  • B.

    FortiGate displays an error message. You must use the CLI to delete an SD-WAN member.

  • C.

    FortiGate displays an error message. SD-WAN zones must contain at least two members

  • D.

    FortiGate accepts the deletion and places the member in the default SD-WAN zone.

Correct Answer & Rationale:

Answer: A

Question 5 Fortinet FCSS_SDW_AR-7.4
QUESTION DESCRIPTION:

Refer to the exhibit that shows an SD-WAN zone configuration on the FortiManager GUI.

FCSS_SDW_AR-7.4 Q5

Based on the exhibit, how will the FortiGate device behave after it receives this configuration?

  • A.

    The configuration instructs FortiGate to choose an ADVPN shortcut based on SD-WAN information.

  • B.

    The configuration instructs FortiGate to allow ADVPN shortcuts for the tunnels of this SD-WAN zone.

  • C.

    The configuration instructs FortiGate to establish shortcuts only when at least two members meet the SLA target.

  • D.

    The configuration instructs FortiGate to establish shortcuts only for overlay interfaces that meet the SLA target HUB1_HC.

Correct Answer & Rationale:

Answer: C

Explanation:

This is because the setting minimum-sla-meet-members = 2 requires at least two SD-WAN zone members (in this case, HUB2-VPN1, HUB2-VPN2, and HUB2-VPN3) to pass the defined SLA health check (HUB1_HC) before the FortiGate will establish ADVPN shortcuts. If fewer than two members meet the SLA, shortcuts will not be created.

Question 6 Fortinet FCSS_SDW_AR-7.4
QUESTION DESCRIPTION:

An administrator is configuring SD-WAN to load balance their network traffic. Which two things should they consider when setting up SD-WAN? (Choose two.)

  • A.

    You can select the outbandwidth hash mode with all strategies that allow load balancing.

  • B.

    Only the manual and best-quality strategies allow SD-WAN load balancing.

  • C.

    When applicable. FortiGate load balances the traffic through all members that meet the SLA target.

  • D.

    SD-WAN load balancing is possible only using the best quality and lowest cost (SLA) strategies.

Correct Answer & Rationale:

Answer: A, C

Question 7 Fortinet FCSS_SDW_AR-7.4
QUESTION DESCRIPTION:

Refer to the exhibit.

FCSS_SDW_AR-7.4 Q7

Which statement best describe the role of the ADVPN device in handling traffic?

  • A.

    This is a hub that has received a query from a spoke and has forwarded it to another spoke.

  • B.

    This is a hub in a dual-region topology. The remote hub tunnel ID is 10.0.2.101.

  • C.

    This is a spoke that has received a shortcut query from another spoke and has forwarded the response to its hub.

  • D.

    This is a spoke. The kernel received a shortcut request and forwards the query to another spoke.

Correct Answer & Rationale:

Answer: C

Explanation:

Within ADVPN topologies, shortcut requests and responses traverse spokes and hubs. Fortinet documentation states:

" When a spoke receives a shortcut query from another spoke, it may forward the response to its hub for validation or to facilitate dynamic shortcut tunnel setup. This mechanism allows direct spoke-to-spoke communication for optimized routing and performance, reducing latency and offloading the hub after initial control-plane mediation. "

This is a core benefit of ADVPN’s dynamic shortcut feature.

Question 8 Fortinet FCSS_SDW_AR-7.4
QUESTION DESCRIPTION:

Refer to the exhibits.

FCSS_SDW_AR-7.4 Q8

You use FortiManager to configure SD-WAN on three branch devices.

When you install the device settings. FortiManager prompts you with the error " Copy Failed " for the device branch1_fat When you click the log button. FortiManager displays the message shown in the exhibit.

  • A.

    Based on the exhibits, which statement best describes the issue and how you can resolve it?

  • B.

    Remove the installation target for the SD-WAN member port4. You cannot combine metadata variable and installation targets.

  • C.

    Gateways for all members in a zone must be defined the same way. Specify the gateway of the SD-WAN member port! without metadata variables.

  • D.

    Check the metadata variable definitions, and review the per-device mapping configuration.

  • E.

    Check the connection between branch1_fgt and FortiManager

Correct Answer & Rationale:

Answer: D

Question 9 Fortinet FCSS_SDW_AR-7.4
QUESTION DESCRIPTION:

Refer to the exhibits.

FCSS_SDW_AR-7.4 Q9

You connect to a device behind a branch FortiGate device and initiate a ping test. The device is part of the LAN subnet and its IP address is 10.0.1.101.

Based on the exhibits, which interface uses branch 1_fgt to steer the test traffic?

  • A.

    port4

  • B.

    HUB1-VPN1

  • C.

    port1

  • D.

    port2

Correct Answer & Rationale:

Answer: D

Question 10 Fortinet FCSS_SDW_AR-7.4
QUESTION DESCRIPTION:

Refer to the exhibits.

FCSS_SDW_AR-7.4 Q10

The exhibits show the source NAT (SNAT) global setting. port2 interface settings, and the routing table on FortiGate.

The administrator increases the member priority on port2 to 20.

Upon configuration changes and the receipt of new packets, which two actions does FortiGate perform on existing sessions established over port2? (Choose two.)

  • A.

    FortiGate continues routing all existing sessions over port2.

  • B.

    FortiGate routes only new sessions over port2.

  • C.

    FortiGate flags the SNAT session as dirty only if the administrator has assigned an IP pool to the firewall policies with NAT.

  • D.

    FortiGate flags the sessions as dirty.

  • E.

    FortiGate updates the gateway information of the sessions with SNAT so that they use port1 instead of port2.

Correct Answer & Rationale:

Answer: D, E

Explanation:

When the member priority of a port is increased (e.g., port2 to 20), FortiGate evaluates existing sessions and applies “dirty” flags where applicable. The SD-WAN session management mechanism is described in detail: “Upon a change in SD-WAN member priority, all existing sessions using that member are marked as dirty. For SNAT sessions, the gateway information is updated to ensure future packets are routed through the newly preferred member, in this case, port1. This automatic re-evaluation allows SD-WAN to dynamically respond to topology or priority changes, maintaining optimal routing.” This is fundamental to seamless failover and session persistence in Fortinet SD-WAN, ensuring active flows are redirected based on updated priorities or health status.

[References:, [FCSS_SDW_AR-7.4 1-0.docx Q13], FortiOS 7.4 SD-WAN Concept Guide, “Session Management During Path Change”, FortiGate CLI Reference: diagnose sys session list, ]

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