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| Section | Objectives |
|---|---|
| Topic 1: Asset Management | - Implement device detection on FortiGate and FortiNAC - Explain OT standards and Fortinet compliance - Use Fortinet Security Fabric for an OT network |
| Topic 2: Monitoring and Risk Assessment | - Perform risk assessment and management - Create FortiAnalyzer event handlers - Analyze security reports from FortiAnalyzer |
| Topic 3: Network Security | - Configure security inspections for industrial protocols - Configure virtual patching - Configure automation |
| Topic 4: Network Access Control | - Configure network segmentation schemas - Explain OT Ethernet concepts - Configure network access authentication |
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41. Frage
Refer to the exhibit.
A partial OT network is shown. You have configured the FortiGate device with VLANs to segment the OT network. The supervisor now wants to connect to the PLC from the Engineering Workstation. How can you allow access from the Engineering Workstation to the PLC? (Choose one answer)
Antwort: D
Begründung:
The correct answer is D. You must configure a layer 3 switch .
The study guide explains that "Layer 2 devices can add or remove tags" but "cannot modify them." It then states that "A layer 3 device, such as a router or FortiGate, can modify the VLAN tag before routing the packet. This allows them to route traffic between VLANs." It also explicitly describes
"Router on a Stick" as "a way to allow routing between VLANs." Since the exhibit shows a layer-2 switch and the Engineering Workstation and PLC are placed in different VLANs, inter-VLAN communication requires layer-3 routing.
The other options do not solve this requirement. intra-switch-policy explicit/implicit applies to a software switch , where member interfaces are in the same broadcast domain and same subnet, not to routing between separate VLANs. forward domain IDs are used in transparent mode to confine broadcasts to specific broadcast domains; they do not provide inter-VLAN access. Therefore, to let the Engineering Workstation in one VLAN reach the PLC in another VLAN, you need a layer 3 routing function , which matches option D .
42. Frage
Refer to the exhibit.
A partial Application Sensor profile is shown. When you apply this profile in a firewall policy, which two statements are correct? (Choose two answers)
Antwort: B,D
Begründung:
The correct answers are A and C .
Option C is correct because the profile clearly contains the Operational Technology category and specific OT application signatures such as Modbus and IEC.60870.5.104 . The study guide says "You can use application control signatures to detect OT protocols" and "You can filter to a specific OT protocol." That means OT application signatures are active in this sensor profile.
Option A is correct because the guide explains that application control works at different levels: "Detection of protocol (one detection per session)" and "Message level (one detection per protocol message)." It also says you can use application signatures for "granular message type identification." In the exhibit, IEC.
60870.5.104.Control.Functions is explicitly configured, which is a granular IEC message/control-level signature rather than only a protocol-level match. That means logging and control can occur at the IEC command level.
Option B is not correct because the profile shows Modbus configured at the parent protocol level as Monitor
, while the guide states that the "parent signature takes precedence over the child signature." Since protocol-level detection is one detection per session , that does not mean FortiGate will necessarily log each Modbus command individually.
Option D is incorrect because even though the broader Operational Technology category is set to block, the profile includes specific application and filter overrides for Modbus and IEC 104 behavior. So the resulting effect is not simply that all OT protocols are blocked .
43. Frage
What are two advantages provided by industrial Ethernet? (Choose two answers)
Antwort: A,C
Begründung:
The correct answers are B. Real-time control and D. Determinism . The study guide defines industrial Ethernet as the "use of Ethernet and TCP/IP as transport mechanisms for industrial protocols" and states that it provides "real-time control," "low latency," and "determinism (meaning reliable and predictable data delivery)" in harsh environments. It further explains that industrial Ethernet "provides deterministic communication between machine controllers, actuators, sensors, and other units." These statements directly confirm that the two key advantages are real-time control and determinism.
The other options are not supported by the study guide as core advantages of industrial Ethernet. Encryption is not listed as one of the benefits in this section, and remote access is discussed elsewhere in the OT architecture but not as a defining advantage of industrial Ethernet itself. The guide is explicit that the main benefits here are predictable delivery and real-time communication, which are essential in industrial control environments where timing and reliability matter.
44. Frage
Refer to the exhibit.
An industrial Ethernet protocol skipping layers 3 to 6 is shown. Which industrial Ethernet protocol is it?
(Choose one answer)
Antwort: B
Begründung:
The correct answer is D. EtherCAT . The study guide explicitly states under the Ethernet/IP and EtherCAT section that "EtherCAT is a protocol that offers real-time communication in a primary-secondary configuration" and "EtherCAT skips layers 3 to 6 to deliver real-time communication." It also adds that
"the most important feature of this protocol is that secondary devices collect only the information they need from the data packets." This matches the exhibit exactly, where the diagram shows Real-Time Data above a Proprietary MAC and Proprietary physical layer , reflecting the protocol structure that bypasses the intermediate OSI layers.
The other options do not match this behavior. The guide says POWERLINK uses layer 2 and layer 7 of the OSI model, not that it skips layers 3 to 6. It also explains that Ethernet/IP is the industrial protocol based entirely on Ethernet standards and adapts to the OSI model. Modbus is described as an open client/server protocol and is not suitable for transmitting data in real time . Therefore, the protocol in the exhibit is clearly EtherCAT .
45. Frage
For the installation of your first FortiGate device, you want to minimize the impact in your OT network.
Therefore, you deploy it initially as an offline IDS. Which two statements about this deployment are correct?
(Choose two answers)
Antwort: B,C
Begründung:
Deploying a FortiGate in offline IDS (also known as one-arm sniffer mode) is a common strategy in OT environments for several reasons found in the study guide:
* Priority of Availability : In OT, availability and safety are critically important and prioritized higher than in IT. An offline IDS minimizes impact because it does not sit in the direct path of production traffic.
* Network Sensor Role : In this mode, the FortiGate is connected to a mirror/SPAN port on a switch. It acts as a network sensor , receiving a copy of the traffic rather than having the traffic flow through it.
This confirms Statement A is correct and Statement D is incorrect.
* Passive vs. Active : The guide explicitly states that in OT environments, passive methods are preferred over active methods to avoid negatively impacting performance or causing process interruptions.
* Depth of Visibility : Even though the device is offline, you apply security profiles (such as IPS, Application Control, and Antivirus) to the sniffer interface. This allows the FortiGate to analyze the copied traffic and provide deep visibility into the OT assets and their behaviors. This confirms Statement B is correct.
* Detection vs. Prevention : An IDS (Intrusion Detection System) is passive ; it can detect threats but cannot reset connections or drop packets to block attacks. Therefore, it cannot block zero-day attacks, making Statement C incorrect.
46. Frage
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