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Fortinet NSE 7 - OT Security 7.2 Questions and Answers

Question 1

Refer to the exhibit.

Question # 1

PLC-3 and CLIENT can send traffic to PLC-1 and PLC-2. FGT-2 has only one software switch (SSW-1) connecting both PLC-3 and CLIENT. PLC-3 and CLIENT cannot send traffic to each other.

Which two statements about the traffic between PCL-1 and PLC-2 are true? (Choose two.)

Options:

The switch on FGT-2 must be hardware to implement micro-segmentation.

Micro-segmentation on FGT-2 prevents direct device-to-device communication.

Traffic must be inspected by FGT-EDGE in OT networks.

FGT-2 controls intra-VLAN traffic through firewall policies.

Question 2

Refer to the exhibit.

Given the configurations on the FortiGate, which statement is true?

Options:

FortiGate is configured with forward-domains to reduce unnecessary traffic.

FortiGate is configured with forward-domains to forward only domain controller traffic.

FortiGate is configured with forward-domains to forward only company domain website traffic.

FortiGate is configured with forward-domains to filter and drop non-domain controller traffic.

Question 3

Which two statements are true when you deploy FortiGate as an offline IDS? (Choose two.)

Options:

FortiGate receives traffic from configured port mirroring.

Network traffic goes through FortiGate.

FortiGate acts as network sensor.

Network attacks can be detected and blocked.

Question 4

An OT administrator deployed many devices to secure the OT network. However, the SOC team is reporting that there are too many alerts, and that many of the alerts are false positive. The OT administrator would like to find a solution that eliminates repetitive tasks, improves efficiency, saves time, and saves resources.

Which products should the administrator deploy to address these issues and automate most of the manual tasks done by the SOC team?

Options:

FortiSIEM and FortiManager

FortiSandbox and FortiSIEM

FortiSOAR and FortiSIEM

A syslog server and FortiSIEM

Question 5

An OT network architect must deploy a solution to protect fuel pumps in an industrial remote network. All the fuel pumps must be closely monitored from the corporate network for any temperature fluctuations.

How can the OT network architect achieve this goal?

Options:

Configure a fuel server on the remote network, and deploy a FortiSIEM with a single pattern temperature security rule on the corporate network.

Configure a fuel server on the corporate network, and deploy a FortiSIEM with a single pattern temperature performance rule on the remote network.

Configure a fuel server on the remote network, and deploy a FortiSIEM with a single pattern temperature performance rule on the corporate network.

Configure both fuel server and FortiSIEM with a single-pattern temperature performance rule on the corporate network.

Question 6

The OT network analyst run different level of reports to quickly explore failures that could put the network at risk. Such reports can be about device performance. Which FortiSIEM reporting method helps to identify device failures?

Options:

Business service reports

Device inventory reports

CMDB operational reports

Active dependent rules reports

Question 7

As an OT administrator, it is important to understand how industrial protocols work in an OT network.

Which communication method is used by the Modbus protocol?

Options:

It uses OSI Layer 2 and the primary device sends data based on request from secondary device.

It uses OSI Layer 2 and both the primary/secondary devices always send data during the communication.

It uses OSI Layer 2 and both the primary/secondary devices send data based on a matching token ring.

It uses OSI Layer 2 and the secondary device sends data based on request from primary device.

Question 8

With the limit of using one firewall device, the administrator enables multi-VDOM on FortiGate to provide independent multiple security domains to each ICS network. Which statement ensures security protection is in place for all ICS networks?

Options:

Each traffic VDOM must have a direct connection to FortiGuard services to receive the required security updates.

The management VDOM must have access to all global security services.

Each VDOM must have an independent security license.

Traffic between VDOMs must pass through the physical interfaces of FortiGate to check for security incidents.

Question 9

Refer to the exhibit.

An OT network security audit concluded that the application sensor requires changes to ensure the correct security action is committed against the overrides filters.

Which change must the OT network administrator make?

Options:

Set all application categories to apply default actions.

Change the security action of the industrial category to monitor.

Set the priority of the C.BO.NA.1 signature override to 1.

Remove IEC.60870.5.104 Information.Transfer from the first filter override.

Answer:

Explanation:

According to the Fortinet NSE 7 - OT Security 6.4 exam guide1, the application sensor settings allow you to configure the security action for each application category andnetwork protocol override. The security action determines how the FortiGate unit handles traffic that matches the application category or network protocol override. The security action can be one of the following:

Allow: The FortiGate unit allows the traffic without any further inspection.

Monitor: The FortiGate unit allows the traffic and logs it for monitoring purposes.

Block: The FortiGate unit blocks the traffic and logs it as an attack.

The priority of the network protocol override determines the order in which the FortiGate unit applies the security action to the traffic. The lower the priority number, the higher the priority. For example, a priority of 1 is higher than a priority of 10.

In the exhibit, the application sensor has the following settings:

The industrial category has a security action of allow, which means that the FortiGate unit will not inspect or log any traffic that belongs to this category.

The IEC.60870.5.104 Information.Transfer network protocol override has a security action of block, which means that the FortiGate unit will block and log any traffic that matches this protocol.

The IEC.60870.5.104 Control.Functions network protocol override has a security action of monitor, which means that the FortiGate unit will allow and log any traffic that matches this protocol.

The IEC.60870.5.104 Start/Stop network protocol override has a security action of allow, which means that the FortiGate unit will not inspect or log any traffic that matches this protocol.

The IEC.60870.5.104 Transfer.C.BO.NA.1 network protocol override has a security action of block, which means that the FortiGate unit will block and log any traffic that matches this protocol.

The problem with these settings is that the IEC.60870.5.104 Transfer.C.BO.NA.1 network protocol override has a lower priority than the IEC.60870.5.104 Information.Transfer network protocol override. This means that if the traffic matches both protocols, the FortiGate unit will apply the security action of the higher priority override, which is block. However, the IEC.60870.5.104 Transfer.C.BO.NA.1 protocol is used to transfer binary outputs, which are essential for controlling OT devices. Therefore, blocking this protocol could have negative consequences for the OT network.

To fix this issue, the OT network administrator must set the priority of the IEC.60870.5.104 Transfer.C.BO.NA.1 network protocol override to 1, which is higher than the priority of the IEC.60870.5.104 Information.Transfer network protocol override. This way, the FortiGate unit will apply the security action of the lower priority override, which is allow, to the traffic that matches both protocols. This will ensure that the FortiGate unit does not block the traffic that is used to transfer binary outputs, while still blocking the traffic that is used to transfer information.

1: NSE 7 Network Security Architect - Fortinet

Question 10

Which three Fortinet products can you use for device identification in an OT industrial control system (ICS)? (Choose three.)

Options:

FortiSIEM

FortiManager

FortiAnalyzer

FortiGate

FortiNAC

Question 11

An OT network consists of multiple FortiGate devices. The edge FortiGate device is deployed as the secure gateway and is only allowing remote operators to access the ICS networks on site.

Management hires a third-party company to conduct health and safety on site. The third-party company must have outbound access to external resources.

As the OT network administrator, what is the best scenario to provide external access to the third-party company while continuing to secure the ICS networks?

Options:

Configure outbound security policies with limited active authentication users of the third-party company.

Create VPN tunnels between downstream FortiGate devices and the edge FortiGate to protect ICS network traffic.

Split the edge FortiGate device into multiple logical devices to allocate an independent VDOM for the third-party company.

Implement an additional firewall using an additional upstream link to the internet.

Question 12

Which two frameworks are common to secure ICS industrial processes, including SCADA and DCS? (Choose two.)

Options:

Modbus

NIST Cybersecurity

IEC 62443

IEC104

Answer:

B, C

Explanation:

B. NIST Cybersecurity Framework (CSF)

Role: Provides a risk-based approach to manage cybersecurity for critical infrastructure (including ICS/SCADA/DCS).

Fortinet Reference:

Fortinet OT Security Solution Guide (v7.2):

"The NIST Cybersecurity Framework is widely adopted in OT environments to align security practices with business objectives, manage risks, and ensure resilience."

Page 12: "Framework adoption (e.g., NIST CSF) helps organizations prioritize OT asset protection."

C. IEC 62443

Role: International standard specifically designed for ICS/OT security, covering technical controls, processes, and risk management.

Fortinet Reference:

*Fortinet NSE 7 - OT Security 7.2 Study Guide*:

"IEC 62443 is the foundational standard for securing industrial automation and control systems (IACS), including SCADA and DCS. It defines security zones, conduits, and security levels (SLT)."

*Module 4: "IEC 62443 provides OT-specific security requirements not covered by IT frameworks."*

Why Other Options Are Incorrect

A. Modbus: A communication protocol (not a framework) used in OT environments. It lacks security features and governance.

FortiGate OT Security Guide:

"Modbus is an unauthenticated, cleartext protocol vulnerable to eavesdropping. It is not a security framework."

D. IEC 104: A telecontrol protocol for SCADA (based on IEC 60870-5-104). It is not a security framework.

FortiSIEM OT Monitoring Handbook:

"IEC 104 is used for data transmission in electrical grids. Like Modbus, it requires external security controls."

Key Documentation Extracts

Fortinet OT Security Solution Guide (v7.2):

*"Industrial environments align with IEC 62443 for OT-specific controls and NIST CSF for risk governance. Protocols like Modbus/IEC 104 require additional hardening."*

NSE 7 OT Security 7.2 Curriculum:

"IEC 62443 addresses OT asset discovery, segmentation, and threat detection. NIST CSF complements it with risk assessment methodologies."

Question 13

The OT network analyst runs different level of reports to quickly explore threats that exploit the network. Such reports can be run on all routers, switches, and firewalls. Which FortiSIEM reporting method helps to identify these type of exploits of image firmware files?

Options:

CMDB reports

Threat hunting reports

Compliance reports

OT/loT reports

Question 14

Refer to the exhibits.

Question # 14

Which statement about some of the generated report elements from FortiAnalyzer is true?

Options:

The report confirms Modbus and IEC 104 are the key applications crossing the network.

FortiGate collects the logs and generates the report to FortiAnalyzer.

The file types confirm the infected applications on the PLCs.

This report is predefined and is not available for customization.

Question 15

Operational technology (OT) network analysts run different levels of reports to identify failures that could put the network at risk Some of these reports may be related to device performance

Which FortiSIEM reporting method helps identify device failures?

Options:

Device inventory reports

Payment card industry (PCI) logging reports

Configuration management database (CMDB) operational reports

Business service reports

Question 16

Refer to the exhibit.

Question # 16

The IPS profile is added on all of the security policies on FortiGate.

For an OT network, which statement of the IPS profile is true?

Options:

FortiGate has no IPS industrial signature database enabled.

The listed IPS signatures are classified as SCADA equipment.

All IPS signatures are overridden and must block traffic match signature patterns.

The IPS profile inspects only traffic originating from SCADA equipment.

Question 17

In a wireless network integration, how does FortiNAC obtain connecting MAC address information?

Options:

RADIUS

Link traps

End station traffic monitoring

MAC notification traps

Question 18

When device profiling rules are enabled, which devices connected on the network are evaluated by the device profiling rules?

Options:

Known trusted devices, each time they change location

All connected devices, each time they connect

Rogue devices, only when they connect for the first time

Rogue devices, each time they connect

Question 19

What are two critical tasks the OT network auditors must perform during OT network risk assessment and management? (Choose two.)

Options:

Planning a threat hunting strategy

Implementing strategies to automatically bring PLCs offline

Creating disaster recovery plans to switch operations to a backup plant

Evaluating what can go wrong before it happens

Question 20

Which three common breach points can be found in a typical OT environment? (Choose three.)

Options:

Global hat

Hard hat

VLAN exploits

Black hat

RTU exploits

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Fortinet NSE7_OTS-7.2 Fortinet NSE 7 - OT Security 7.2 Exam Practice Test

Fortinet NSE 7 - OT Security 7.2 Questions and Answers

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