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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	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 3	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 4	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.
Topic 5	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.

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Fortinet FCSS - Network Security 7.6 Support Engineer Sample Questions (Q71-Q76):

NEW QUESTION # 71
Which three common FortiGate-to-collector-agent connectivity issues can you identify using the FSSO real- time debug? (Choose three.)

A. FortiGate cannot reach the IP address of the collector agent.
B. The group filters do not match.
C. The connection was refused. There may be a mismatch of the TCP port.
D. The pro-shared key does not match
E. The SSL certificate used for FSSO over SSL has expired.

Answer: A,C,D

Explanation:
The diagnose debug authd fsso server command is the primary tool for troubleshooting communication between the FortiGate and the FSSO Collector Agent. This debug output reveals the status of the connection and the reasons for failure. The three most common connectivity issues identified by this debug are:
* FortiGate cannot reach the IP address of the collector agent (Option C): The debug will show connection timeouts or "host unreachable" errors if the Layer 3 connectivity is missing.
* The connection was refused / Port mismatch (Option B): If the FortiGate can reach the IP but the Collector Agent is not listening on the specified port (default 8000), the debug will display "Connection refused." This often happens if the port configured on the FortiGate does not match the listening port on the agent.
* The pre-shared key does not match (Option D): If the IP and Port are correct, the next step is authentication. If the password configured on the FortiGate does not match the one on the Collector Agent, the debug will explicitly show an "Authentication failed" or "password mismatch" error during the handshake.
Note on other options: Option A (SSL) is less common than basic connectivity/auth mismatches. Option E (Group filters) relates to user processing logic, which occurs after connectivity is established.
Reference:
FortiGate Security 7.6 Study Guide (FSSO Troubleshooting): "Troubleshooting FSSO... Check connectivity (IP/Port) and authentication (Password)."

NEW QUESTION # 72
The local OSPF router is unable to establish adjacency with a peer.
Which two things should the administrator do to troubleshoot the issue? (Choose two.)

A. Check if there is an active static route to the peer.
B. Check if TCP port 179 is blocked.
C. Check if both peers have an IP address within the same subnet.
D. Check if IP protocol 89 is blocked.

Answer: C,D

Explanation:
The correct answers are A and B.
The Network Security Support Engineer 7.6 Study Guide states under OSPF Troubleshooting:
"Follow these steps to troubleshoot an OSPF problem between two peers:
Check that the local router can reach the remote peer. IP addresses must be in the same subnet and have the same subnet mask.
Ensure that IP protocol 89 is not blocked.
Hello and dead intervals must match.
The OSPF router ID for each peer must be unique. Duplicate router IDs are not allowed.
Do the MTUs match?
If authentication is enabled, the type and password must match on both sides."** The same page also summarizes the troubleshooting tips as:
"Do peers have an IP address within the same subnet?"
"Is IP protocol 89 blocked?"
This directly confirms:
A is correct
B is correct
Why the other options are wrong:
C is wrong because TCP port 179 is used by BGP, not OSPF. OSPF uses IP protocol 89, as the study guide explicitly notes D is wrong because the study guide's OSPF adjacency troubleshooting checklist does not require an active static route to the peer. OSPF neighbors form adjacency on directly reachable networks, and the guide instead focuses on same subnet, protocol 89, intervals, router ID, MTU, and authentication matching So the verified answers are: A, B.

NEW QUESTION # 73
Refer to the exhibit.

An IPsec VPN tunnel is dropping, as shown by the debug output.
Analyzing the debug output, what could be causing the tunnel to go down?

A. The tunnel drops during rekey negotiation.
B. The tunnel drops after the timer expires.
C. Phase 2 drops but Phase 1 is up.
D. Dead Peer Detection is not receiving its acknowledge packet.

Answer: D

NEW QUESTION # 74
Refer to the exhibit, which shows a truncated output of a real-time RADIUS debug.

Which two statements are true? (Choose two answers)

A. Authentication was successful.
B. The authentication scheme used was pop3.
C. Two-factor authentication was required.
D. Authentication was unsuccessful.
E. The RADIUS server queried for authentication is located at IP address 172.25.188.164.

Answer: A,E

Explanation:
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 .

NEW QUESTION # 75
Which statement about IKEv2 is true?

A. IKEv1 and IKEv2 use the same TCP port but run on different UDP ports.
B. Both IKEv1 and IKEv2 share the feature of asymmetric authentication.
C. IKEv1 and IKEv2 share the concept of phase1 and phase2.
D. IKEv1 and IKEv2 have enough of the header format in common that both versions can run over the same UDP port.

Answer: D

Explanation:
The correct answer is B .
The study guide explicitly states: "IKE version 2 does not interoperate with IKE version 1, but they share enough of the header format that both versions can unambiguously operate over the same UDP port." That directly proves B .
Why the other options are wrong:
* A is wrong because the study guide shows authentication methods as Asymmetric for IKEv2 and Symmetric for IKEv1
* C is wrong because the study guide does not say they use the same TCP port; instead, it specifically says they can operate over the same UDP port
* D is wrong because the study guide states: "IKEv2 does not use the concept of phase 1 or phase 2" , even though FortiOS CLI/GUI still uses those terms for configuration purposes

NEW QUESTION # 76
......

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