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| Section | Objectives |
|---|---|
| Asset management | - Explain OT standard and Fortinet compliance - Fortinet Security Fabric for an OT network - Implement device detection on FortiGate and FortiNAC |
| Monitoring and risk assessment | - Perform risk assessment and management - Create FortiAnalyzer event handlers - Analyze security reports from FortiAnalyzer |
| Network access control | - Configure network access authentication - Configure network segmentation schemas - Explain OT Ethernet concepts |
| Network security | - Configure virtual patching - Configure security inspections for industrial protocols - Configure automation |
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NEW QUESTION # 15
Which industrial protocol does not support VLANs? (Choose one answer)
Answer: B
Explanation:
The correct answer is C. EtherCAT .
The study guide states that for industrial Ethernet protocols, "such as Ethernet/IP and Modbus/TCP, you can use VLANs to segment your physical LAN into multiple logical LANs." This directly confirms that Ethernet/IP and Modbus/TCP support VLAN-based segmentation in the OT context.
By contrast, the guide explains that "EtherCAT skips layers 3 to 6 to deliver real-time communication" and describes it as an "Open-Software Modified-Ethernet" approach. Because it does not operate like the standard Ethernet/IP model used for normal VLAN-based segmentation, EtherCAT is the protocol identified here as not supporting VLANs in the way Ethernet/IP and Modbus/TCP do.
So, based on the study guide comparison, the verified answer is EtherCAT .
NEW QUESTION # 16
Refer to the exhibit.
A partial OT network is shown.
You have recently removed the air gap in the network to provide full connectivity.
What must you configure to protect your OT network from external attacks?
Answer: D
Explanation:
The correct answer is D . Removing the air gap creates connectivity between the OT environment and external networks, significantly increasing exposure to unauthorized access and cyberattacks. Fortinet explains that the expansion of remote connectivity and IT/OT interconnections increases the OT attack surface and that the modern threat landscape requires IPS to block a wider range of threats . In the shown Purdue-style topology, FortiGate_Level5 is positioned at the upper boundary toward external connectivity and is therefore the appropriate enforcement point for protecting against attacks entering from outside the OT environment. Virtual patching at Level 2 is intended primarily to compensate for known vulnerabilities on specific OT devices that cannot yet be patched. Application Control provides industrial protocol visibility and command-level control, while merely enabling OT signatures at Level 3 does not replace perimeter intrusion prevention. Consequently, IPS belongs on FortiGate_Level5 .
NEW QUESTION # 17
During layer 2 polling , which two pieces of information are gathered by FortiNAC to identify a device?
(Choose two answers)
Answer: B,C
NEW QUESTION # 18
According to the IEC 62443 standard, your security level is 4 . What is your OT environment defending against? (Choose one answer)
Answer: D
Explanation:
Explanation:
NEW QUESTION # 19
Refer to the exhibit.
A simplified OT network is shown. You want to optimize the protection of this OT network. Which two controls must you implement? (Choose two answers)
Answer: B,C
Explanation:
The correct answers are B. IPS on FortiGate_Level5 and C. Virtual patching on FortiGate_Level2 .
The study guide explains that "the first line of defense is securing the IT side of your network" and that FortiGate should be placed to protect ICS environments and stop threats from propagating from IT into OT. It also states that IPS improves OT security because "today's threat landscape requires IPS to block a wider range of threats and improve OT security" and that in IPS mode, vulnerable devices are protected . This makes FortiGate_Level5 , at the upper boundary near the DMZ and external connectivity, the correct place to implement IPS as a primary protection control.
The study guide also states in the Purdue model section that "Level 2 consists of the processes and programs that control the PLCs, RTUs, and IEDs found at Level 1" and that "it is necessary to segment, or even microsegment, these servers with firewall segmentation, along with policies that include application control and virtual patching." In addition, the virtual patching section says "Virtual patching protects OT devices that have not yet been updated against vulnerability exploits" and applies when traffic related to the vulnerable device reaches the firewall policy. Since FortiGate_Level2 sits between the process network and the control network, it is the right enforcement point for virtual patching to protect the PLC-side assets.
Option A is not one of the best answers because offline IDS only detects and logs attacks; the guide says "no traffic flows through FortiGate" in offline IDS mode, whereas IPS can actually block threats. Option D is also not the best answer because OT signatures are enabled within the IPS framework, but the stronger control explicitly described for this design is to deploy IPS at the upper boundary and virtual patching closer to vulnerable OT devices .
NEW QUESTION # 20
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