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| Section | Weight | Objectives |
|---|---|---|
| Network Security | 25% | - Security automation and threat response - Virtual patching for legacy OT systems - Deep inspection for industrial protocols (Modbus, DNP3, OPC) |
| Network Access Control | 25% | - Purdue Model and secure network segmentation - OT Ethernet and industrial communication models - Authentication and access policies for OT devices |
| Asset Management | 25% | - Device detection and inventory using FortiGate & FortiNAC - Fortinet Security Fabric for OT environments - OT security standards and compliance (IEC 62443, NIST) |
| Monitoring and Risk Assessment | 25% | - Event handling and logging with FortiAnalyzer 7.6 - OT-focused risk assessment and management - Threat detection using FortiSIEM 7.4 |
>> Knowledge NSEI_OTS_AR-7.6 Points <<
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NEW QUESTION # 18
Refer to the exhibit.
A partial OT network is shown. You must improve the security of this OT network and implement internal segmentation between network 1 and network 2. How can you achieve the segmentation? (Choose one answer)
Answer: C
Explanation:
The correct answer is D. You can configure forward domain IDs for each network .
The study guide explains that in FortiGate transparent mode, all interfaces belong to the same broadcast domain, even interfaces with different VLAN IDs , and then states that you can "subdivide into multiple broadcast domains" by configuring set forward-domain < domain_ID > . It also states that "interfaces with the same domain ID belong to the same broadcast domain" and, with multiple forward domains,
"traffic arriving on one interface is broadcast only to interfaces in the same forward domain ID." That is the mechanism used to separate internal networks and confine traffic between network segments.
The other options do not fit this requirement. Universal ZTNA is for application access control, not segmentation between two OT networks. One traffic VDOM does not create segmentation by itself; multiple VDOMs would be needed for that type of isolation. An explicit software switch controls intraswitch traffic inside the same software-switch domain, not segmentation between separate networks like network 1 and network 2. Therefore, the correct way to implement the internal segmentation asked in the question is to assign different forward domain IDs to each network.
NEW QUESTION # 19
Refer to the exhibit.
The OT devices behind the ruggedized FortiGate have vulnerabilities and you want to apply a virtual patching profile in the firewall policy. Why is Virtual Patching not available in the Security Profiles section? (Choose one answer)
Answer: A
Explanation:
The correct answer is A. You must enable Virtual Patching in the Feature Visibility section .
The study guide states clearly that "By default, virtual patching profiles are hidden on the GUI, and you must enable them through System > Feature Visibility." That exactly matches the situation in the exhibit, where Virtual Patching does not appear under Security Profiles . So the issue is not that the feature is unsupported, but that it is simply hidden in the GUI until it is enabled.
The other options do not answer the question being asked. A valid OT security service license is required for virtual patching signatures and protection workflow, and OT signatures are relevant to IPS-based OT protection, but those do not explain why the menu item itself is missing from the Security Profiles section .
The guide specifically identifies Feature Visibility as the reason the Virtual Patching profile is not shown in the GUI. Therefore, the required action is to enable Virtual Patching in System > Feature Visibility .
NEW QUESTION # 20
Refer to the exhibit.
Why is the OT View tab not available in the Asset Identity Center section of the FortiGate-1 device? (Choose one answer)
Answer: B
Explanation:
The correct answer is A . The study guide states that "The OT view is not available by default. You must enable it in the Feature Visibility section of the GUI or using the CLI command shown on this slide" and shows config system settings # set gui-ot enable . It also says that "After you enable the feature, the Asset Identity Center contains an Asset Identity List tab and an OT View tab." This directly explains why the OT View tab is missing: the feature that enables the Purdue-style OT display has not been enabled yet.
The OT View is the view that displays devices in a Purdue diagram , and the Asset Identity List also shows the current Purdue level for each device. Because the answer options do not explicitly say enable OT View in Feature Visibility , option A is the intended match, since it refers to enabling the Purdue-related OT display feature. Option B is incorrect because device detection affects visibility of devices, not whether the OT View tab exists. Option C is not supported by the study guide, and option D is also not given as the requirement for showing the OT View tab.
NEW QUESTION # 21
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 # 22
You want to improve the security of your OT network and therefore deploy a FortiGate device with the OT signatures database. Which two statements about this database are true? (Choose two answers)
Answer: A,D
Explanation:
The correct answers are A and D .
Option A is correct because the study guide states that for OT protocol coverage, "a valid OT security service license is required to receive updates on both intrusion prevention and application control signatures." It also shows "Valid license required" in the FortiGuard subscriptions section for OT protocol coverage. This confirms that a valid OT security service license is required to use and maintain the OT signatures database correctly.
Option D is also correct because the guide explicitly shows the CLI configuration used "To enable OT signatures" :
config ips global
set exclude-signatures none
end
It then states that "By default, OT signatures are excluded from the signatures lists on the GUI until you enable them on the CLI." This directly confirms that you must set exclude-signatures to none in the CLI to enable OT signatures.
Option B is incorrect because the study guide does not say you manually import the OT signatures database.
Instead, it explains that FortiGuard maintains updated OT signatures and that a valid license is required to receive updates. Option C is incorrect because the guide clearly says OT signatures are excluded by default until enabled from the CLI.
NEW QUESTION # 23
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