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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: OT Security Fundamentals and Standards | 20% | - Purdue Reference Model and zone-conduit model - OT vs IT environments and convergence - Industry standards and compliance frameworks (ISA-95, IEC 62443, NIST) |
| Topic 2: Network Security and Segmentation | 25% | - Firewall policies and inspection for OT traffic - Virtual patching and vulnerability protection - Industrial protocol security (Modbus, DNP3, OPC, S7) - Secure OT network design and segmentation strategies |
| Topic 3: Monitoring, Threat Detection and Response | 15% | - Risk assessment and mitigation - Continuous monitoring and logging - Threat detection and incident response - FortiAnalyzer, FortiSIEM usage for OT security |
| Topic 4: Asset Management and Visibility | 25% | - Fortinet Security Fabric integration for asset visibility - Device detection and classification - Asset inventory and lifecycle management |
| Topic 5: Network Access Control | 15% | - OT-specific NAC design and deployment - FortiNAC integration in OT environments - Authentication and authorization for OT devices |
>> NSE6_OTS_AR-7.6 Prüfungsfragen <<
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122. Frage
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?
Antwort: D
Begründung:
The Configuration Management Database (CMDB) operational reports in FortiSIEM are used to monitor and analyze the operational status of devices. These reports can help identify device failures by providing detailed insights into device configurations, statuses, and performance metrics. CMDB operational reports are particularly useful for troubleshooting and maintaining the health of devices in an OT network, ensuring that any potential failures or risks to the network are promptly addressed.
123. Frage
Refer to the exhibits.
The network topology and the software-switch configuration are shown.
Why is Engineering Workstation not able to access the PLCs?
Antwort: B
Begründung:
The software switch is configured with intra-switch-policy explicit, which means traffic between member interfaces is not allowed automatically. Communication from the Engineering Workstation on port3 to the PLC on port2 requires an explicit firewall policy permitting that access.
124. Frage
Refer to the exhibit.
A partial OT network is shown. You want to provide the supervisor with secure remote access. Which two features can you implement on Edge-FortiGate? (Choose two answers)
Antwort: A,D
Begründung:
Based on the exhibit and the OT Security 7.6 Architect standards for Secure Remote Access:
Secure Tunneling (Statement A): The exhibit shows a Remote PC connecting through a VPN Cloud to the Edge-FortiGate. In the Fortinet architecture, IPsec VPN is the primary method for establishing a secure, encrypted tunnel for remote administrators or supervisors to access the internal OT segments (Level 2/3) from an external location.
Multi-Factor Authentication (Statement B): Secure remote access in OT environments (aligned with IEC 62443 standards) requires strong authentication. The study guide emphasizes the use of FortiToken to provide Two-Factor Authentication (2FA) for VPN users, ensuring that compromised credentials alone are not enough to gain access to critical infrastructure.
FSSO (Statement D): Fortinet Single Sign-On is generally used for identifying internal users already on the network to apply identity-based policies; it is not the primary mechanism for establishing the remote connection itself.
SD-WAN (Statement C): While SD-WAN can manage the path of the VPN traffic, it is a WAN optimization and reliability feature, not a "secure remote access" feature for a supervisor in the context of authentication and encryption.
125. Frage
Refer to the exhibit. Based on the Purdue model, which three measures can be implemented in the control area zone using the Fortinet Security Fabric? (Choose three.)
Antwort: B,C,D
Begründung:
FortiGate for application control and intrusion prevention system (IPS): In the control area zones, FortiGate can provide critical security measures such as application control and intrusion prevention. This helps detect and prevent unauthorized activities and threats targeting the OT network.
FortiNAC for network access control: FortiNAC can be used to enforce network access policies, ensuring that only authorized devices and users can access specific zones within the control area, thereby reducing the risk of unauthorized access or breaches.
FortiSIEM for security incident and event management: FortiSIEM provides centralized monitoring and analysis of security incidents and events across the OT environment. It helps to identify potential threats, improve visibility, and ensure quick responses to security incidents.
126. Frage
How are rogue devices evaluated in FortiNAC? (Choose one answer)
Antwort: C
Begründung:
The correct answer is A. Through device profiling rules . The study guide states: "When a rogue device record is created, the device is evaluated against the enabled device profiling rules." It further explains that "FortiNAC evaluates a device against each rule until a failed, passed, or cannot evaluate result is reached." That is the direct evaluation mechanism used for rogue devices in FortiNAC.
The guide also adds that "Device profiling rules are used to evaluate and classify rogue devices" and that FortiNAC applies rule methods and classification settings to determine whether the device matches a known type. This is why the other options are incorrect: FortiGuard server queries and the local device database (CIDB) relate to FortiGate device detection workflows, not FortiNAC rogue-device evaluation, and importing a devices list is not the evaluation method described for rogue devices.
127. Frage
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