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Fortinet FCSS_NST_SE-7.6 Exam Syllabus Topics:

Topic	Details
Topic 1	Routing: This section focuses on Network Engineers and involves tackling issues related to packet routing using static routes, as well as OSPF and BGP protocols to support enterprise network traffic flow.
Topic 2	Authentication: This section evaluates the abilities of System Administrators and requires troubleshooting both local and remote authentication methods, including resolving Fortinet Single Sign-On (FSSO) problems for secure network access.
Topic 3	VPN: This section is aimed at IT Professionals and includes diagnosing and addressing issues with IPsec VPNs, specifically IKE version 1 and 2, to secure remote and site-to-site connections within the network infrastructure.
Topic 4	System troubleshooting: This section of the exam measures the skills of Network Security Support Engineers and addresses diagnosing and correcting issues within Security Fabric setups, automation stitches, resource utilization, general connectivity, and different operation modes in FortiGate HA clusters. Candidates work with built-in tools to effectively find and resolve faults.
Topic 5	Security profiles: This part measures skills of Security Operations Specialists and covers identifying and resolving problems linked to FortiGuard services, web filtering configurations, and intrusion prevention systems to maintain protection across network environments.

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Fortinet FCSS - Network Security 7.6 Support Engineer Sample Questions (Q57-Q62):

NEW QUESTION # 57
Refer to the exhibit.

The sniffer log on two FortiGate devices are shown. Based on the information in the log, which two factors explain the output on FortiGate FGT-02? (Choose two answers)

A. A third-party device is blocking protocol 50.
B. The administrator set the wrong sniffer filter on FGT-02.
C. The administrator has not yet configured the VPN tunnel on FGT-02.
D. The administrator configured the wrong remote peer IP address on FGT-01.

Answer: A,D

Explanation:
The output on FGT-01 confirms that the device is actively encapsulating traffic and sending it as ESP packets (Protocol 50) out of port1 towards the IP address 97.86.16.52. The logs show outgoing packets, which confirms FGT-01 is attempting to initiate or maintain the tunnel and that NAT-Traversal is not being used (as it uses raw ESP).
The output on FGT-02, however, displays (no packets captured). This is significant because the sniffer command diagnose sniffer packet any 'esp' captures traffic at the network interface level (ingress), regardless of whether a matching VPN configuration exists on the receiving unit. The absence of packets proves that the ESP traffic generated by FGT-01 is physically not arriving at FGT-02's interface.
This behavior is explained by two primary factors:
Option A (Blocking): An intermediate device, such as an ISP router or firewall, is dropping Protocol 50 traffic. Unlike UDP 500/4500, raw ESP is often blocked by default on many networks or legacy devices.
Option C (Routing/Misconfiguration): If the administrator configured the wrong remote peer IP on FGT-01, the packets are being routed to a different destination entirely. Consequently, they never arrive at FGT-02 to be captured.
Option B is incorrect because even without a configured VPN tunnel, the sniffer would still display the incoming ESP packets if they were reaching the interface. Option D is incorrect because FGT-01 is sending ESP, making 'esp' the correct filter.

NEW QUESTION # 58
Refer to the exhibit.

The partial output of diagnose sys session stat command is shown.
Which statement about the output shown in the exhibit is correct?

A. 27 sessions have expired but are still in the session table in case any out-of-order packets arrive.
B. 113 sessions have been dropped because of memory page exhaustion.
C. 562 TCP sessions have their proto_state set to 01 if there is no inspection.
D. There have been 131072 recorded ephemeral sessions but there are no current ones.

Answer: C

Explanation:
The correct answer is C .
The exhibit shows:
* 562 in ESTABLISHED state
* 27 in CLOSE state
* memory_tension_drop=0
* ephemeral=0/131072
According to the study guide, for TCP sessions: "The protocol state in the session table is a two-digit number. For TCP, the first number (from left to right) is related to the server-side state and is 0 when the session is not subject to any inspection (flow or proxy)... The second digit is the client-side state." The same page also shows that value 1 = ESTABLISHED So, if a TCP session is in ESTABLISHED state and there is no inspection , its proto_state is 01 :
* first digit 0 = no inspection
* second digit 1 = ESTABLISHED
That makes C correct. This is also consistent with FortiOS examples showing established TCP sessions with proto=6 proto_state=01 Why the other options are wrong:
* A is wrong because the field that indicates sessions dropped due to low free memory is memory_tension_drop, and in the exhibit it is 0 , not 113. The study guide states: "If there is a lack of free memory, the kernel deletes the oldest sessions. The command shown on this slide displays the number of sessions the kernel deleted because of this mechanism." So 113 is the clash value, not memory-tension drops.
* B is wrong because ephemeral=0/131072 does not mean 131072 ephemeral sessions were recorded.
The study guide explains that FortiGate "sets a hard limit on the maximum number of ephemeral sessions that can exist at the same time in the session table." Therefore:
* 0 = current ephemeral sessions
* 131072 = maximum allowed ephemeral sessions for that model/context
* D is wrong because the study guide says the temporary retention for possible out-of-order packets happens in state value 5 (TIME_WAIT) : "When a session is closed by both the sender and receiver, FortiGate keeps that session in the session table for a few seconds, to allow for any out- of-order packets that might arrive after the FIN/ACK packet. This is the state value 5." But the exhibit shows 27 in CLOSE state , and the same table shows CLOSE = 6 , not TIME_WAIT So the verified answer is C .

NEW QUESTION # 59
Refer to the exhibit showing a debug output.

An administrator deployed FSSO in DC Agent Mode but FSSO is failing on FortiGate. Pinging FortiGate from where the collector agent is deployed is successful.
The administrator then produces the debug output shown in the exhibit.
What could be causing this error message?

A. The FortiGate and the collector agent are using different TCP ports.
B. The FortiGate cannot resolve the active directory server name.
C. The TCP port 445 is blocked between FortiGate and collector agent.
D. The collector agent preshared password is mismatched.

Answer: A

NEW QUESTION # 60
Refer to the exhibit, which shows the output of a diagnose command.

What two conclusions can you draw from the output shown in the exhibit? (Choose two answers)

A. This is an expected session created by the IPS engine.
B. This is a pinhole session created to allow traffic for a protocol that requires additional sessions to operate through FortiGate.
C. Traffic in the original direction (coming from the IP address 10.171.121.38) will be routed to the next-hop IP address 10.0.1.10.
D. Traffic in the original direction (coming from the IP address 10.171.121.38) will be routed to the next-hop IP address 10.200.1.1.

Answer: B,C

Explanation:
The correct answers are B and D.
The study guide explains that expectation sessions are pinhole sessions created by session helpers for protocols such as FTP that need additional negotiated connections. It states: "FortiGate created an expectation session and opened the pinhole port for the expected return traffic" and also shows that the firewall "creates an expected (pinhole) session to allow the traffic" That makes D correct.
For B, the study guide explains the gwy= field in session output: the first value is the gateway to the destination, and the second is the gateway to the source In the exhibit, the original-direction traffic is DNATed here:
hook=pre dir=org act=dnat 10.171.121.38:0->10.200.1.1:60426(10.0.1.10:50365) So the destination after DNAT is the internal host 10.0.1.10, and the session's first gwy value corresponds to the next hop toward that destination. That makes B correct.
Why the other options are wrong:
A is wrong because this is an expectation/session-helper behavior, not an IPS-engine-created session. The study guide ties expectation sessions to helpers such as FTP, not IPS.
C is wrong because 10.200.1.1 is the translated address used before DNAT, not the next hop used to forward the original-direction traffic after translation to the internal destination.
So the verified answers are: B, D.

NEW QUESTION # 61
Exhibit.

Refer to the exhibit, which shows the output of get system ha status.
NGFW-1 and NGFW-2 have been up for a week.
Which two statements about the output are true? (Choose two.)

A. If a configuration change is made to the primary FortiGate at this time, the secondary will initiate a synchronization reset.
B. If no action is taken, the primary FortiGate will leave the cluster because of the current sync status.
C. If FGVM...649 is rebooted. FGVM...650 will become the primary and retain that role, even after FGVM...649 rejoins the cluster.
D. If port 7 becomes disconnected on the secondary, both FortiGate devices will elect itself as primary.

Answer: C,D

Explanation:
* FortiGate HA Troubleshooting and Synchronization Guides
* Fortinet Admin Guide: HA Primary Role Retention, Cluster Break-up Due to Out-of-Sync Status

NEW QUESTION # 62
......

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