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| Section | Objectives |
|---|---|
| Network security | - Configure automation - Configure security inspections for industrial protocols - Configure virtual patching |
| Network access control | - Configure network access authentication - Configure network segmentation schemas - Explain OT Ethernet concepts |
| Asset management | - Explain OT standard and Fortinet compliance - Implement device detection on FortiGate and FortiNAC - Fortinet Security Fabric for an OT network |
| Monitoring and risk assessment | - Perform risk assessment and management - Create FortiAnalyzer event handlers - Analyze security reports from FortiAnalyzer |
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NEW QUESTION # 31
Refer to the exhibit.
A partial OT network is shown.
The OT network is divided into two main networks with a FortiGate device operating in NAT mode.
How can you further segment network 1 from network 2?
Answer: C
Explanation:
The correct answer is C . Fortinet VDOMs partition a physical FortiGate into multiple logical FortiGate devices, with each VDOM maintaining independent security policies, routing tables, and other configurations.
Traffic is confined to its VDOM unless explicit inter-VDOM connectivity is configured. Because the exhibit specifies that FortiGate operates in NAT mode , separate traffic VDOMs are the appropriate method for creating independent security domains for network 1 and network 2. Forward-domain IDs apply specifically to FortiGate operating in transparent mode , where interfaces otherwise share a broadcast domain, so option D does not fit this topology. An implicit software switch places interfaces in the same layer-2 broadcast domain rather than creating stronger separation. Universal ZTNA controls user access to applications and is not a replacement for structural network segmentation. Therefore, two traffic VDOMs provide the required separation.
NEW QUESTION # 32
Refer to the exhibit.
An industrial Ethernet protocol skipping layers 3 to 6 is shown. Which industrial Ethernet protocol is it?
(Choose one answer)
Answer: C
Explanation:
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 .
NEW QUESTION # 33
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,D
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 # 34
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)
Answer: B
Explanation:
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 .
NEW QUESTION # 35
Refer to the exhibit.
A partial OT network is shown. You have encountered many disconnections in the links and want to improve the availability of this network. Which action can you perform? (Choose one answer)
Answer: C
Explanation:
The correct answer is C. You can implement parallel redundancy protocol . The study guide explains that media redundancy involves creating a backup path that can be used when part of the network fails and specifically states that "Parallel Redundancy Protocol (PRP) can be used for a star topology." Since the problem described is many disconnections in the links , the issue is link availability, which is a media redundancy problem rather than a firewall virtualization or policy separation problem. PRP is designed to provide a backup communication path with low recovery time when links fail.
The other options do not fit this scenario as well. HA clusters are described in the guide as a solution for network node redundancy , where a backup firewall or switch takes over when the primary device fails. SD- WAN is recommended for remote site access across multiple WAN links, not for the local floor links shown in this topology. VDOMs provide logical segmentation, not link redundancy or higher link availability.
Because the question is specifically about repeated link disconnections , the best action is to implement PRP .
NEW QUESTION # 36
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