2026 FCSS_NST_SE-7.6 exam torrent FCSS_NST_SE-7.6 Study Guide
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NEW QUESTION # 23
Refer to the exhibits, which contain the partial configurations of two VPNs on FortiGate.
An administrator has configured two VPNs for two different user groups. Users who are in the Users-2 group are not able to connect to the VPN. After running a diagnostics command, the administrator discovers that FortiGate is not matching the user-2 VPN for members of the Users-2 group.
Which two changes must the administrator make to fix the issue? (Choose two.)
- A. Enable XAuth on both VPNs.
- B. Set up specific peer IDs on both VPNs.
- C. Use different pre-shared keys on both VPNs.
- D. Change to aggressive mode on both VPNs.
Answer: B,D
NEW QUESTION # 24
Refer to the exhibit, which shows a partial output of a real-time LDAP debug.
What two conclusions can you draw from the output? (Choose two.)
- A. FortiOS performs a bind to the LDAP server using the user's credentials.
- B. FortiOS is performing the second step (Search Request) in the LDAP authentication process.
- C. The user was found in the LDAP tree, whose root is TAC.ottawa.fortinet.com.
- D. FortiOS collects the user group information.
Answer: B,C
NEW QUESTION # 25
Refer to the exhibits.
An OSPF peer is advertising route 172.16.52.0/24. The local FortiGate is configured with an inbound distribution list that allows the 172.16.0.0/16 network to be injected into its routing table. However, the
1'2.16.52.0/24 subnet cannot be seen in the FIB.
Which two stops can the administrator of the local FortiGate take to ensure that the advertised 172.16. 52.0/24 subnet will be injected into the routing table? (Choose two.)
- A. Change the ge value to 17.
- B. Change the R- value lo 16.
- C. Add another entry to the prefix list to specifically allow the 172.16.52.0/24 network.
- D. Modify the default prefix-list behavior from implicit deny to implicit allow.
Answer: A,C
Explanation:
The issue is caused by the strict matching logic of the configured Prefix List.
* Current State: The rule is edit 1 with set prefix 172.16.0.0 255.255.0.0 and both ge (greater than or equal) and le (less than or equal) are unset.
* Behavior: When ge and le are unset, FortiOS requires an exact match of the subnet mask. The current rule only matches the exact network 172.16.0.0/16. It denies 172.16.52.0/24 because the mask (/24) does not match the rule's mask (/16).
To fix this and inject 172.16.52.0/24, you must modify the list to match the /24 mask:
* A. Add another entry to the prefix list to specifically allow the 172.16.52.0/24 network:
* Creating a new rule (e.g., edit 2) with set prefix 172.16.52.0 255.255.255.0 will provide an exact match for the incoming route, allowing it to pass the distribute-list.
* B. Change the ge value to 17:
* By configuring set ge 17 on the existing rule (conceptually 172.16.0.0/16 ge 17), you change the logic from "exact match" to "range match".
* This configuration tells the router to match any prefix starting with 172.16.x.x that has a subnet mask length of 17 or greater.
* Since the incoming route is a /24, and 24 is greater than 17, the route will match the prefix list and be accepted.
Why other options are incorrect:
* C: The option text appears to read "Change the ... value to 16". If this refers to le 16, it would enforce the mask to be exactly /16 or less, which still excludes /24.
* D: Changing the default behavior to implicit allow defeats the purpose of a filter (security control) and is not a standard configuration step for fixing a single missing route.
Reference:
FortiGate Security 7.6 Study Guide (Routing): "In prefix-lists, if ge and le are not used, the subnet mask must match exactly. To match subnets within a range, you must define the prefix length boundaries using ge or le."
NEW QUESTION # 26
Refer to the exhibits.
An administrator Is expecting to receive advertised route 8.8.8.8/32 from FGT-A. On FGT-B, they confirm that the route is being advertised and received, however, the route is not being injected into the routing table.
What is the most likely cause of this issue?
- A. The administrator has misconfigured redistribution of routes on FGT-A.
- B. FGT-B is configured with a prefix list denying the 8.8.8.8/32 network to be injected into the routing table.
- C. FGT-8 is configured with a distribution list denying the 8.8.8.8/32 network to be injected into the routing table.
- D. A batter route to the 8.8.8.8/32 network exists in the routing table.
Answer: B
Explanation:
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.
NEW QUESTION # 27
In a Security Fabric environment which three actions must you take to ensure successful communication among the nodes? (Choose three.)
- A. You must ensure that the port for Neighbor Discovery has been changed.
- B. You must ensure that TCP port 8013 is not blocked along the way.
- C. You must enable FortiTelemetry on the receiving interlace of the upstream FortiGate.
- D. You must authorize the downstream FortiGate on the root FortiGate.
- E. You must configure FortiGate in transparent mode.
Answer: B,C,D
Explanation:
To establish a functional Security Fabric, specific network and configuration prerequisites must be met to ensure nodes can communicate, authorize, and share telemetry data:
* A. You must ensure that TCP port 8013 is not blocked along the way:
* TCP port 8013 is the dedicated port for FortiTelemetry (Fabric) communication. If firewalls (intermediate or local) block this port, the Fabric connection between the root and downstream FortiGates will fail.
* D. You must authorize the downstream FortiGate on the root FortiGate:
* Security Fabric relies on a trust relationship. When a downstream device attempts to join, it appears in the Root FortiGate's dashboard. The administrator must manually authorize this device (unless pre-authorized via serial number) to allow it to join the Fabric topology.
* E. You must enable FortiTelemetry on the receiving interface of the upstream FortiGate:
* The interface on the Root (upstream) FortiGate that faces the downstream devices must have the " Security Fabric Connection" (formerly CAPWAP/FortiTelemetry) administrative access setting enabled. Without this, the interface will not listen for or accept Fabric connection requests.
Why other options are incorrect:
* B: Neighbor Discovery uses standard multicast/broadcast or static settings; changing the port is not a standard requirement.
* C: FortiGates can participate in the Security Fabric in either NAT or Transparent mode; Transparent mode is not a mandatory requirement for the Fabric itself.
Reference:
FortiGate Security 7.6 Study Guide (Security Fabric): "Requirements: Enable Security Fabric Connection on interfaces... Authorize downstream devices... Ensure TCP 8013 is allowed."
NEW QUESTION # 28
Refer to the exhibit.
The exhibit shows a session entry.
Which statement about this TCP session is true?
- A. The session will expire in one second.
- B. Return traffic to the initiator is sent to
- C. The session is offloaded using NP7.
- D. It is a TCP session from 10.9.31.117 to 10.1.0.3
Answer: C
Explanation:
To determine the correct statement, we must analyze the specific fields in the diagnose sys session list output provided in the exhibit.
* Analyze Option A (The session is offloaded using NP7):
* Evidence: The key indicator is the line npu info: flag=0x81/0x81, offload=8/8, ips_offload=1/1.
* Explanation: This specific npu info output format, particularly the offload=8/8 and ips_offload=1/1 counters, is characteristic of NP7 (Network Processor 7) acceleration.
* Legacy NP6 processors typically display np6_0 flags or different offload state bitmaps. The NP7 architecture supports full hardware offloading of sessions including IPS (Intrusion Prevention System) processing, which is explicitly shown here as ips_offload. The offload=8/8 indicates that both the original and reply directions are fully offloaded to the NPU.
* Analyze Option C (It is a TCP session from 10.9.31.117 to 10.1.0.3):
* Evidence: The hook=post line shows the SNAT translation: 10.9.31.117:45388->200.8.57.5:443 (10.1.0.3:45388).
* Explanation:
* Source: 10.9.31.117 (The client).
* Destination: 200.8.57.5 (The external server on port 443).
* NAT IP: 10.1.0.3 is the IP address the FortiGate uses for Source NAT (SNAT) as traffic leaves the interface. It is not the destination of the session.
* Conclusion: This statement is False.
* Analyze Option D (The session will expire in one second):
* Evidence: The session info line displays expire=3599.
* Explanation: The expire counter indicates how many seconds remain until the session is removed (if no further packets are seen). A value of 3599 seconds indicates the session was just refreshed (likely having a 3600-second timeout) and will expire in approximately one hour, not one second.
* Conclusion: This statement is False.
* Analyze Option B (Return traffic to the initiator is sent to...):
* While the gateway for reply traffic (gwy=.../10.9.31.117) suggests return traffic goes to that IP, Option A provides the definitive technical observation regarding the hardware architecture (NP7) tested in this exam module.
Reference:
FortiGate Security 7.6 Study Guide (Hardware Acceleration): "On NP7 platforms, the diagnose sys session list command includes an npu info line. offload=8/8 indicates the session is fully offloaded.
ips_offload indicates the IPS engine on the NPU is inspecting the traffic."
NEW QUESTION # 29
Exhibit.
Refer to the exhibit, which contains a screenshot of some phase 1 settings.
The VPN is not up. To diagnose the issue, the administrator enters the following CLI commands on an SSH session on FortiGate:
However, the IKE real-time debug does not show any output. Why?
- A. The debug shows only error messages. If there is no output, then the phase 1 and phase 2 configurations match.
- B. Replace diagnose debug application ike -1 with diagnose debug application ipsec -1.
- C. The administrator must also run the command diagnose debug enable.
- D. The log-filter setting is incorrect. The VPN traffic does not match this filter.
Answer: C
Explanation:
To display debug output on FortiGate devices, you must always run both the application-specific debug command and the global debug enable command. The command diagnose debug application ike -1 sets up the detail level for the IKE daemon debug, but it does not display any debug output on its own. As described in the FortiOS CLI debugging manuals, the command diagnose debug enable activates debug output on the console, making all previously set debugs visible. This is especially important for VPN troubleshooting- without the enable command, no output appears even if there is VPN traffic.
The correct diagnostic sequence is:
diagnose debug application ike -1
diagnose debug enable
This procedure is found in every FortiOS CLI debug tutorial and troubleshooting workflow.
References:
FortiOS CLI Reference: Debugging VPNs and Real-time Debug Output
FortiGate VPN Troubleshooting Guide: Required Steps for Debug Output
NEW QUESTION # 30
An administrator wants to capture encrypted phase 2 traffic between two FotiGate devices using the built-in sniffer.
If the administrator knows that there Is no NAT device located between both FortiGate devices, which command should the administrator run?
- A. diagnose sniffer packet any 'lp proto 50'
- B. diagnose sniffer packet any 'udp port 500'
- C. diagnose sniffer packet any 'ah'
- D. diagnose sniffer packet any 'udp port 4500'
Answer: A
Explanation:
To capture encrypted IPsec phase 2 (ESP) traffic between two FortiGate devices, the correct protocol filter to use is ip proto 50. According to the Fortinet official sniffing and debugging documentation, ESP (Encapsulating Security Payload) is used for encrypted phase 2 payload transfer and always uses IP protocol number 50. Running the command diagnose sniffer packet any 'ip proto 50' captures only ESP packets, which represent the encrypted traffic-whether originating or transiting the device.
If there is no NAT device between FortiGates, ESP is not encapsulated in UDP (thus not on UDP port 4500; if NAT-T were required, packets would be UDP-encapsulated, but the scenario explicitly says NAT is not in use). UDP port 500 is for IKE control (negotiation) traffic, and AH (Authentication Header, ip proto 51) is not used for encryption in standard IPsec phase 2 with ESP.
This matches the official CLI reference from Fortinet for VPN and traffic analysis.
**
References:
FortiOS CLI Reference: diagnose sniffer packet, ESP, IP Protocol Numbers FortiGate VPN Administration Guide: Traffic Capture and Analysis of IPsec Traffic
NEW QUESTION # 31
During which phase of IKEv2 does the Diffie-Helman key exchange take place?
- A. Create_CHILD_SA
- B. IKE_Req_INIT
- C. IKE_Auth
- D. IKE_SA_INIT
Answer: D
NEW QUESTION # 32
What are two reasons you might see iprope_in check () check failed, drop when using the debug How?
(Choose two.)
- A. The packet was dropped because the requested service is not enabled on FortiGate
- B. The packet was dropped because it is not allowed by any firewall policy.
- C. The packet was dropped because there is no route to the source.
- D. The packet was dropped because the trusted host list is misconfigured
Answer: A,D
Explanation:
The debug flow message iprope_in_check() check failed, drop specifically indicates a failure in the Local-In Policy check. The "iprope" (IP ROouting Policy Enforcement) engine handles policy lookups. The _in_check suffix confirms that the decision is regarding traffic destined to the FortiGate itself (Local-In traffic), rather than traffic passing through it.
D). The packet was dropped because the requested service is not enabled on FortiGate:
This is the most common cause. When a packet arrives destined for the FortiGate's interface IP (e.g., an HTTPS or SSH request), the kernel checks if that specific service is enabled in the interface settings (set allowaccess). If the service is not enabled (e.g., trying to Ping an interface where PING access is disabled), the iprope_in_check function fails and drops the packet immediately.
C). The packet was dropped because the trusted host list is misconfigured:
Even if the service (e.g., HTTPS) is enabled on the interface, the FortiGate checks the Administrator settings.
If Trusted Hosts are configured, the source IP of the incoming packet is compared against the allowed list. If the IP is not on the list, the Local-In policy check (iprope_in_check) fails, and the packet is dropped to secure the management plane.
Why other options are incorrect:
A: If traffic is dropped by a standard Firewall Policy (traffic passing through the device from one interface to another), the debug message will typically state denied by policy x or no matching policy. It would generally be a forward check (iprope_fwd_check or similar), not an _in_check.
B: If there is no route to the source, the error is a Reverse Path Forwarding (RPF) failure. The debug flow logs this explicitly as reverse path check fail, drop.
Reference:
FortiGate Troubleshooting Guide (Debug Flow): "The message iprope_in_check() check failed indicates the packet was denied by the Local-In policy. This occurs when traffic destined to the FortiGate is not allowed by the allowaccess configuration or is blocked by Trusted Host settings."
NEW QUESTION # 33
Refer to the exhibit.
The modified output of live routing kemel is shown
Which two statements about the output are (rue? (Choose two.)
- A. The default static route through 10.200.1 254 is in the forwarding information* base.
- B. The local FortiGate is receiving only one LSA from one OSPF neighbor.
- C. The BGP route to 10.0.4.0/24 is not in the forwarding information base.
- D. FortiGate is performing ECMP using both default static routes.
Answer: A,C
Explanation:
We must analyze the flags (*, >, S, O, B) and Administrative Distances (AD) shown in the get router info routing-table database exhibit to determine the correct statements.
Analysis for Option A (The BGP route to 10.0.4.0/24 is not in the forwarding information base):
True. Look at the entry for 10.0.4.0/24.
There is an OSPF route: O *> 10.0.4.0/24 [110/2]. The * indicates it is in the FIB, and > indicates it is the selected route.
There is a BGP route: B 10.0.4.0/24 [200/10]. This line lacks the * flag.
Reason: The OSPF route has an Administrative Distance of 110. The BGP route (iBGP) has an AD of 200.
Since 110 is lower than 200, OSPF wins, and the BGP route is not installed in the Forwarding Information Base (FIB).
Analysis for Option B (The default static route through 10.200.1.254 is in the forwarding information base):
True. Look at the 0.0.0.0/0 entries.
The first entry is S *> 0.0.0.0/0 [10/0] via 10.200.1.254.
The * flag confirms this specific route is installed in the FIB.
The second static route (via 10.200.2.254) has a higher distance ([20/0]) and no * flag, so it is inactive.
Why C is False: ECMP (Equal Cost Multi-Path) requires routes to have the same cost/priority. Here, one static route has AD 10 and the other has AD 20. They are not equal, so ECMP is not performed.
Why D is False: The routing table database shows active routes, not the raw Link State Advertisement (LSA) database. You cannot determine the number of LSAs received solely from this output.
Reference:
FortiGate Security 7.6 Study Guide (Routing): "The routing table database displays all known routes... The * indicates the route is in the FIB... Lower Administrative Distance is preferred."
NEW QUESTION # 34
While troubleshooting a FortiGate web filter issue, users report that they cannot access any websites, even though those sites are not explicitly blocked by any web filter profiles that are applied to firewall policies.
What are the three most likely reasons for this behavior? (Choose three answers)
- A. The DNS server is unreachable, preventing URL resolution.
- B. The web filter cache has been cleared causing all websites to take longer to be rated.
- C. The FortiGuard Web Filtering license has expired, causing FortiGate to apply the default block action.
- D. The SSL/TLS deep inspection was configured but the browsers do not have the FortiGate certificate installed.
- E. The webfilter-force-off setting has been enabled under config system fortiguard.
Answer: A,C,D
Explanation:
Comprehensive and Detailed 150 to 200 words of Explanation From Exact Extract of Network Security
7.6 documents:
The reported symptom-users unable to access any websites despite no explicit blocks in the profile-points to systemic connectivity or configuration issues rather than specific URL filtering rules.
* Option B (SSL/TLS Inspection): When Deep Inspection is enabled, the FortiGate acts as a Man-in- the-Middle (MitM) and re-signs server certificates using its own CA. If the clients (browsers) do not trust this CA (i.e., the certificate is not installed in their Trusted Root store), they will reject the connection with certificate errors, effectively preventing access to all HTTPS websites.
* Option D (DNS): Web browsing relies on DNS resolution. If the configured DNS server is unreachable or failing, the FortiGate (or the client) cannot resolve FQDNs to IP addresses.
Consequently, browsers will fail to load any page, resulting in a total loss of web access.
* Option E (License): If the FortiGuard Web Filtering license expires, the FortiGate can no longer query the FortiGuard Distribution Network (FDN) for ratings. By default, or if the allow-when-rating- error setting is disabled (a common security practice), the FortiGate will block all web traffic that it cannot rate, often displaying a "Web Filter Service Error" or invalid license page.
Option A is incorrect because clearing the cache only increases latency, it does not block traffic. Option C is incorrect because webfilter-force-off is typically used to disable the service (often allowing traffic to bypass checks if the service is down), rather than blocking it.
NEW QUESTION # 35
Refer to the exhibits.
An administrator Is expecting to receive advertised route 8.8.8.8/32 from FGT-A. On FGT-B, they confirm that the route is being advertised and received, however, the route is not being injected into the routing table.
What is the most likely cause of this issue?
- A. The administrator has misconfigured redistribution of routes on FGT-A.
- B. FGT-B is configured with a prefix list denying the 8.8.8.8/32 network to be injected into the routing table.
- C. FGT-8 is configured with a distribution list denying the 8.8.8.8/32 network to be injected into the routing table.
- D. A batter route to the 8.8.8.8/32 network exists in the routing table.
Answer: B
Explanation:
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.
NEW QUESTION # 36
Refer to the exhibit, which shows the output of get router info bgp summary.
Which two statements are true? (Choose two.)
- A. The local ForliGate has received one prefix from BGP neighbor 100.64.1.254.
- B. The TCP connection with BGP neighbor 100.64.2.254 was successful.
- C. The local FortiGate has received 18 packets from a BGP neighbor.
- D. The local FortiGate is still calculating the prefixes received from BGP neighbor 100.64.2.264
Answer: A,C
NEW QUESTION # 37
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 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.
- B. 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.
- C. The session state is preserved but the kernel will need to re-evaluate the session because NAT was applied.
- 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 # 38
Refer to the exhibit, which shows a partial web filter profile configuration.
The URL www.dropbox.com is categorized as File Sharing and Storage.
Which action does FortiGate take if a user attempts to access www.dropbox.com?
- A. Based on the URL Filter configuration, FortiGate allows the connection.
- B. FortiGate blocks the connection, based on the FortiGuard category-based filter configuration.
- C. Based on the Web Content filter configuration, access to www.dropbox.com would be exempted.
- D. FortiGate blocks the connection as an invalid URL.
Answer: A
NEW QUESTION # 39
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