NSE7_FSN_AR-7.6 Exam Dumps - Fortinet NSE 7 - Secure Networking 7.6 Architect

The 8.8.8.8/32 route is visible in the OSPF database on FGT-B but not installed into the routing table—the most likely explanation is that FGT-B is filtering it from being installed.

The correct answer is A. This behavior is dictated by the configuration command set snat-route-change enable shown in Exhibit 1 under config system global.

Routing Change: By changing the priority of route ID 2 from 10 to 0, it becomes lower than route ID 1 (priority 5). In FortiOS, a lower priority value indicates a more preferred route. Consequently, the active route for the destination changes from port1 to port2.

SNAT Implication: The existing session (shown in Exhibit 2) is using Source NAT (SNAT) with the IP address associated with port1 (10.200.1.1). If the traffic were simply switched to port2, the source IP would be incorrect for that interface and the return traffic would likely fail or be dropped.

snat-route-change enable: This specific setting instructs the FortiGate on how to handle established SNAT sessions when a routing change occurs that alters the preferred outgoing interface. When enabled, if a route change forces an SNAT session to a new interface, FortiGate flushes (deletes) the session from the session table. This is necessary because a live TCP session cannot survive a change in its source IP address. The client must initiate a new session, which will then be created using the new correct route (port2) and the corresponding new SNAT IP.

If this setting were disabled, the session would likely remain " sticky " to the original interface (port1) until it closed, provided the route still existed. However, the explicit configuration forces the deletion.

The exhibit shows:

memory conserve mode: on

memory used: 2706 MB 89% of total RAM

memory used threshold red: 2675 MB 88% of total RAM

memory used + freeable threshold extreme: 2887 MB 95% of total RAM

The study guide states that the default thresholds are:

Extreme = 95%

Red = 88%

Green = 82%

So this FortiGate is in conserve mode because memory usage is 89%, which is above the red threshold (88%), but it has not yet reached the extreme threshold (95%).

The study guide then explains exactly what happens during conserve mode:

“For traffic that requires proxy-based inspection (and if memory usage has not exceeded the extreme threshold):

config system global

set av-failopen [off | pass | one-shot]

pass (default): All new sessions pass without inspection”

It also says:

“The av-failopen setting also applies to flow-based antivirus inspection.”

And the same page adds:

“If memory usage exceeds the extreme threshold, all new sessions that require inspection (flow-based or proxy-based) are blocked.”

Therefore, with default settings and with memory usage below the extreme threshold, FortiGate is allowing new sessions that require inspection, but bypassing inspection. That matches C.

Why the other options are wrong:

A is wrong because the default behavior is not to block proxy-based inspected sessions; the default is pass, meaning they pass without inspection

B is wrong because if memory rises another 6%, it reaches 95%, which is the extreme threshold. At that point, the study guide says all new sessions that require inspection are blocked

D is wrong because FortiGate blocks all new inspected sessions only when memory usage exceeds the extreme threshold, and the exhibit shows it is currently at 89%, not 95%

Remote breakout sends selected internet traffic through a centralized hub or gateway, where common security inspection and policy enforcement can be applied. This reduces the amount of security configuration that must be maintained independently at individual branches, making A correct.

Cloud on-ramp designs are intended to optimize connectivity between branches and cloud-hosted applications or services. By steering traffic toward an appropriate cloud gateway or optimized path, the design can improve application performance, making D correct.

DIA performs local internet breakout at the branch. It can reduce latency, but the branch must provide the required local security inspection, so it is not specifically intended for devices with limited security capabilities. A standalone SD-WAN deployment also normally derives value from multiple WAN paths; a site with only one WAN link provides no meaningful SD-WAN path-selection advantage.

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FortiGate HA Troubleshooting and Synchronization Guides

Fortinet Admin Guide: HA Primary Role Retention, Cluster Break-up Due to Out-of-Sync Status

The correct answers are A and D.

The debug output shows:

Sent RADIUS req to server ' RadiusServer ' : IP=172.25.188.164 ... user= " student " using CHAP

Result for radius svr ' RadiusServer ' 172.25.188.164(0) is 0

Sending result 0 for req 2

The study guide explains that in RADIUS real-time debug, FortiGate shows the IP address of the RADIUS server it is querying. In the example, it says FortiGate “creates an access request to the RADIUS server at IP address 10.0.13.130” and shows the line Sent radius req to server ... IP=10.0.13.130

So in your exhibit, the queried server is clearly 172.25.188.164, which makes A correct.

The study guide also states:

“The message fnbamd_comm_send_result-Sending result 0 indicates that the authentication was successful and that FortiGate received the Access-Accept message.”

Since your exhibit also ends with Sending result 0, that makes D correct.

Why the other options are wrong:

B is wrong because result 0 means authentication successful, not failed

C is wrong because the debug explicitly shows using CHAP, and the study guide lists supported RADIUS schemes as CHAP, PAP, MS-CHAP, and MS-CHAPv2

E is wrong because the study guide says two-factor authentication would involve an Access-Challenge response: “If two-factor authentication is enabled on the server, the response is an Access-Challenge message”Your exhibit shows successful result 0 / Access-Accept, not a challenge.

So the verified answers are: A, D.

The Enterprise Firewall 7.6 Administrator Study Guide ' s multiregion ADVPN example uses iBGP inside each region and eBGP between the two regions. On the hubs ' spoke-facing ADVPN phase 1 interfaces, Fortinet configures auto-discovery-sender enable so the hub can initiate ADVPN shortcut negotiation. It also configures network-id to identify the corresponding overlay. Therefore, B matches the documented configuration.

auto-discovery-receiver is associated with the spoke role and does not pair with remote-ip for this hub configuration. The separate hub-to-hub IPsec tunnel uses auto-discovery-forwarder enable to forward ADVPN shortcut information between regions. However, remote-as is a BGP neighbor parameter, not an IPsec phase 1 parameter. Consequently, D combines settings belonging to different configuration contexts.

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