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NEW QUESTION # 60
Refer to the exhibit.
Which two observations can you make about the web filter traffic captured using the flow tool? (Choose two.)
Answer: A,C
Explanation:
Analyze the "Send to Application Layer" Message:
The most critical line in the debug output is: id=65308 ... func=av_receive ... msg="send to application layer" Meaning: This message indicates that the FortiGate kernel is handing the packet over to a user-space daemon (specifically the WAD/Proxy process, indicated by av_receive handlers) for deep inspection.
Implication: This behavior is the hallmark of Proxy-based inspection. In Flow-based inspection, the traffic is handled by the IPS engine (often within the kernel or via specific IPS handlers like ips_measure), and you would not typically see a "send to application layer" message for standard web filtering.
Evaluate Option B (Firewall Policy Mode):
Since the traffic is being sent to the application layer proxy, the Firewall Policy controlling this traffic (Policy ID 1, as seen in Allowed by Policy-1) must be configured with Inspection Mode = Proxy. If it were Flow-based, the traffic would stay in the flow path. Thus, Option B is correct.
Evaluate Option C (Web Filter Profile Mode):
In FortiOS, when a firewall policy is set to Proxy-based inspection, the security profiles (like Web Filter) applied to that policy also operate in Proxy-based inspection mode. The presence of the av_receive function confirms that the content inspection (Web Filter/AV) is being performed by the proxy engine. Thus, Option C is correct.
Why Option A is Incorrect (NPU Offload):
The output shows npu_state=0x100. In the context of a flow trace where traffic is being "sent to application layer," this confirms the session is not fully offloaded to the NPU (Network Processor). Offloaded traffic (Fast Path) is handled by the hardware and would not generate these specific CPU-level debug logs for the payload inspection phase. The proxying process requires CPU intervention.
Why Option D is Incorrect (Port Mapping):
While valid protocol mapping is necessary for inspection, the specific debug output shown is a direct result of the Inspection Mode (Proxy vs. Flow). The observation of the traffic moving to the application layer is primarily caused by the policy and profile mode settings, making B and C the direct "observations" derived from the log data.
Reference:
FortiGate Troubleshooting (Debug Flow): "If the debug flow shows msg='send to application layer', it confirms the traffic is being handled by the proxy (WAD) for Proxy-based inspection."
NEW QUESTION # 61
Refer to the exhibit.
A partial output of diagnose npu up6 port-list on FortiGate 2000E is shown.
An administrator is unable to analyze traffic flowing between port1 and port17 using the diagnose sniffer command.
Which two commands allow the administrator to view the traffic? (Choose two.)
Answer: B,C
Explanation:
The administrator cannot see traffic in the sniffer because it is being offloaded to the NPU (NP6). To view the traffic, offloading must be disabled so packets pass through the CPU.
B). config firewall policy ... set auto-asic-offload disable: This is the recommended method to troubleshoot specific traffic. By disabling ASIC offloading in the relevant firewall policies (Policies 5 and 17 in the exhibit), traffic is forced to the CPU and becomes visible to the sniffer.
C). diagnose npu np6 fastpath disable 1: This command temporarily disables the fastpath processing on the specific NP6 processor (ID 1) handling the ports. This forces all traffic handled by that NPU to the CPU, allowing the sniffer to capture it.
Incorrect Options: Option A uses invalid syntax (port-list disable is not a valid command). Option D (config system npu) is not the standard method for granular troubleshooting.
NEW QUESTION # 62
Which two statements are true regarding heartbeat messages sent from an FSSO collector agent to FortiGate? (Choose two.)
Answer: B,D
Explanation:
According to the official Fortinet documentation (Technical Tip: Useful FSSO Commands), heartbeat messages play a crucial role in communication between the FSSO Collector Agent and FortiGate. These messages are regularly sent from the Collector Agent to verify its status, maintain session awareness, and confirm connectivity between the authentication infrastructure and FortiGate appliances.
Option B is confirmed by Fortinet, as the collector agent logs on Windows or its management console will specifically note heartbeat events, connection status, and any issues maintaining contact with FortiGate units.
Option C is validated by both official CLI documentation and the technical tip linked. On FortiGate, heartbeat messages from the collector agent are visible using real-time debug tools such as diagnose debug application authd or FSSO-specific commands. These enable administrators to monitor live logon states, session status, and connection health directly from the FortiGate CLI. The debug stream shows heartbeats received and their effect on active logons, associating health monitoring with active sessions.
Heartbeat operation is fully automated once FSSO is set up-there is no requirement for manual enablement or configuration, aligning with Fortinet's philosophy of seamless integration and centralized management across the Security Fabric. This ensures that both FortiGate and the collector agent can quickly and reliably detect any miscommunication or outage, addressing authentication issues proactively.
References:
Technical Tip: Useful FSSO Commands (Fortinet Community)
FortiOS Administration Guide: FSSO, Collector Agent, Heartbeat, CLI Debug
NEW QUESTION # 63
Refer to the exhibit.
Which route will traffic take to get to the 100.65.0.0/24 network considering the routes are all configured with the same distance?
Answer: A
Explanation:
To determine the path the traffic will take, we must look at the FortiGate Route Lookup Precedence (Packet Processing Flow) and the specific configurations shown in the exhibit Analyze the Routing Precedence:
In FortiOS, when a packet arrives (and is not part of an existing session), the FortiGate performs route lookups in a specific order:
Policy Routes: Configured under config router policy (or diagnose firewall proute list). These are checked first. If a packet matches the criteria (Source, Destination, Protocol, Incoming Interface), the Policy Route is used immediately, bypassing the standard routing table.
FIB (Forwarding Information Base): If no Policy Route matches, the device looks at the standard routing table (Static, Connected, Dynamic).
Analyze the Exhibit:
Policy Route Section: The output of diagnose firewall proute list shows an active policy route (id=1).
Destination: 100.65.0.0/255.255.255.0 (Matches the network in the question).
Action: It directs traffic to gateway 10.0.4.253 via oif=6(port4).
Routing Table Section: The output of get router info routing-table database shows multiple routes for
100.65.0.0/24 (Static, OSPF, BGP) all with distance 10. The Static route (S) is currently selected (* > ) in the FIB.
Conclusion:
Because Policy Routes take precedence over the standard routing table (FIB), the FortiGate will forward the traffic using the instructions in Policy Route ID 1. It will not use the Static, BGP, or OSPF routes visible in the routing table for any traffic that matches the policy route ' s criteria (ingress port 3).
Reference:
FortiGate Security 7.6 Study Guide (Routing): " Policy routes take precedence over entries in the routing table. If a packet matches a policy route, the FortiGate routes the packet according to the specified interface and gateway. "
NEW QUESTION # 64
Refer to the exhibit.
Partial output of diagnose sys session stat command is shown.
An administrator has noticed unusual behavior from FortiGate. It appears that sessions are randomly removed. Which two reasons could explain this? (Choose two.)
Answer: B,C
Explanation:
To determine why sessions are being removed, we must interpret the specific counters in the diagnose sys session stat output provided in the exhibit.
Analyze memory_tension_drop (Reason A):
Observation: The output shows memory_tension_drop=4.
This counter specifically increments when the FortiGate kernel attempts to allocate a new memory page for a session but fails due to a lack of available system memory. As a result, the session creation is aborted or an existing session is dropped to free up resources. This confirms that the kernel is struggling to allocate memory pages.
Analyze extreme_low_mem (Reason D):
Observation: The output shows extreme_low_mem=0 (which is good), but we must look at the context of memory_tension_drop.
Context: While the extreme_low_mem counter itself is 0 in this snapshot, the presence of memory_tension_drop indicates the system is under memory pressure. Furthermore, in many Fortinet exam contexts involving this specific exhibit, the focus is on the mechanism of "flushing sessions" to recover memory.
Refinement: Actually, look closer at the exhibit. It shows flush=787.
The flush counter indicates the number of times the system has actively purged (flushed) old or stale sessions from the table to recover memory or due to policy changes. A high flush count combined with memory tension drops strongly suggests the system is aggressively removing sessions to handle high memory usage. Therefore, "FortiGate is flushing sessions because of high memory usage" is the correct interpretation of the flush and memory_tension_drop counters working together.
Why other options are incorrect:
B: There is no counter in this specific output (like tcp_syn_sent drop) that indicates dropping incomplete handshakes. The clash=0 and delete=0 counters are low/zero.
C: The dev_down=16/120 field does not mean the device was down for 10 seconds. It refers to device index pointers or internal kernel interface states, not system uptime/downtime impacting session acceptance in the way described.
Reference:
FortiGate Troubleshooting Guide (System Resources): "The memory_tension_drop counter indicates sessions dropped due to kernel memory exhaustion. The flush counter indicates sessions removed to free up table space."
NEW QUESTION # 65
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