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Fortinet FCSS_NST_SE-7.6 Exam Syllabus Topics:

Topic	Details
Topic 1	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 2	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 3	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 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	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.

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Fortinet FCSS - Network Security 7.6 Support Engineer Sample Questions (Q54-Q59):

NEW QUESTION # 54
Refer to the exhibit.

The output of a BGP debug command is shown.
Why has the local router at 172.16.23.58 been unable to establish adjacency with its only neighbor?

A. The neighbor router has become unreachable, which is evident by the low ratio of messages received to messages sent.
B. The local router has not received a SYN/ACK packet from the neighbor.
C. The local router has not received an OPEN message from the neighbor.
D. There is no active route to the BGP neighbor.

Answer: B

Explanation:
The correct answer is C.
The exhibit shows the neighbor state as Connect in the State/PfxRcd column. The study guide explains the BGP states exactly as follows:
"Connect: Waiting for a successful three-way TCP connection"
"OpenSent: Waiting for an OPEN message from the peer"
"Established: Peers have successfully exchanged OPEN and keepalive messages" Because the router is still in Connect state, the TCP three-way handshake has not completed yet. In practical terms, the local router has sent the TCP SYN but has not successfully received the SYN/ACK needed to complete the handshake. That is why C is correct.
Why the other options are wrong:
A is wrong because the message counters alone do not prove that the neighbor is unreachable. The study guide says the State/PfxRcd field shows the BGP state when the session is not established, and here that state is specifically Connect B is wrong because waiting for an OPEN message happens in OpenSent, not Connect D is not the best answer for this output. The study guide ties the displayed state directly to the protocol phase: Connect means the device is still waiting for a successful TCP handshake So the verified answer is: C.

NEW QUESTION # 55
Refer to the exhibit, which shows the partial output of command diagnose debug rating.

In this exhibit, which FDS server will the FortiGate algorithm choose?

A. 64.26.151.37
B. 66.117.56.37
C. 208.91.112.194
D. 209.22.147.36

Answer: A

NEW QUESTION # 56
When FortiGate enters conserve mode because of memory pressure, which action can FortiGate perform to preserve memory?

A. FortiGate switches to a less memory-intensive inspection mode, such as flow-based inspection.
B. Fortigate begins dropping all new sessions to protect resources.
C. FortiGate automatically reboots to clear memory and restore full operation.
D. FortiGate reduces or stops non-essential processes tike logging and antivirus scanning

Answer: B

Explanation:
When the FortiGate enters Conserve Mode due to high memory pressure (specifically reaching the Extreme Threshold at 95% memory usage, or the Red Threshold for proxy traffic), the system prioritizes stability and preventing a system crash (kernel panic).
D). FortiGate begins dropping all new sessions to protect resources:
In Extreme Conserve Mode (95%), the FortiGate kernel acts to preserve the remaining memory for system- critical tasks (like admin access and basic packet forwarding of existing sessions). To achieve this, it drops all new session initiation requests regardless of the inspection type.
In Red Conserve Mode (88%), it specifically drops new sessions that require proxy-based inspection (as these consume the most memory), while often still allowing flow-based traffic.
Among the provided choices, "dropping new sessions" is the only standard protective mechanism FortiOS employs to stop memory usage from climbing further.
Why other options are incorrect:
A: FortiGate does not automatically reboot in conserve mode; it attempts to recover by restricting traffic.
(Reboot is a last-resort crash, not a configured action).
B: Inspection modes (Proxy vs. Flow) are defined in firewall policies and cannot be dynamically switched by the system during runtime.
C: The system does not arbitrarily stop "non-essential processes" like logging or AV. Logging is critical for audit trails. While av-failopen can be configured to bypass scanning, the system typically defaults to "Fail- Close" (dropping traffic) rather than stopping the engines themselves.
Reference:
FortiGate Security 7.6 Study Guide (Diagnostics & Resource Usage): "When memory usage reaches the extreme threshold (95%), all new sessions are dropped to prevent memory exhaustion."

NEW QUESTION # 57
Refer to the exhibit.

The exhibit shows the output of a session. Which two statements are correct? (Choose two.)

A. The session did not match a firewall policy.
B. The gateway to the destination is 10.1.10.1.
C. The session was initiated from an authenticated user.
D. The TCP session has been successfully established.

Answer: C,D

Explanation:
The correct answers are C and D .
For D , the session output shows proto=6, which means TCP, and proto_state=01. The study guide explains that for TCP sessions, "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." It also shows that value 1 = ESTABLISHED So proto_state=01 means:
* first digit 0 = no inspection
* second digit 1 = ESTABLISHED
That confirms the TCP session has been successfully established.
For C , the study guide section "Session for an Authenticated User" states: "Any session for traffic coming from an authenticated user contains the authed flag. Additionally, the username is added to the session information." In the exhibit, the session contains user=User1 and an authentication state flag (authd), which indicates the session is associated with an authenticated user.
Why the other options are wrong:
* A is wrong because the session did match a firewall policy . The study guide says the session output includes "The ID of the matching policy" In the exhibit, the session shows policy_id=1 , so a firewall policy was matched.
* B is wrong because the study guide explains the gwy field as:
* first value = gateway to destination
* second value = gateway to source The exhibit shows gwy=10.1.0.254/10.1.10.1, so:
* gateway to destination = 10.1.0.254
* gateway to source = 10.1.10.1
So the verified answers are: C, D .

NEW QUESTION # 58
Refer to the exhibit, which shows the output of diagnose sys session list.

If the HA ID for the primary device is 0, what happens if the primary fails and the secondary becomes the primary?

A. The session state is preserved but the kernel will need to re-evaluate the session because NAT was applied.
B. The secondary device has this session synchronized; however, because application control is applied, the session is marked dirty and has to be re-evaluated after failover.
C. The session will be removed from the session table of the secondary device because of the presence of allowed error packets, which will force the client to restart the session with the server.
D. Traffic for this session continues to be permitted on the new primary device after failover, without requiring the client to restart the session with the server.

Answer: D

NEW QUESTION # 59
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