Fortinet NSEI_OTS_AR-7.6 Dumps Questions Answers

The correct answers are B. Real-time control and D. Determinism . The study guide defines industrial Ethernet as the “use of Ethernet and TCP/IP as transport mechanisms for industrial protocols” and states that it provides “real-time control,” “low latency,” and “determinism (meaning reliable and predictable data delivery)” in harsh environments. It further explains that industrial Ethernet “provides deterministic communication between machine controllers, actuators, sensors, and other units.” These statements directly confirm that the two key advantages are real-time control and determinism.

The other options are not supported by the study guide as core advantages of industrial Ethernet. Encryption is not listed as one of the benefits in this section, and remote access is discussed elsewhere in the OT architecture but not as a defining advantage of industrial Ethernet itself. The guide is explicit that the main benefits here are predictable delivery and real-time communication, which are essential in industrial control environments where timing and reliability matter.

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 .

Based on the technical data provided in the exhibits and the OT Security 7.6 Architect curriculum:

Industrial Protocol Identification (Statement A) : The log details exhibit clearly shows that the Destination Port used in the attack is 502 . According to the study guide ' s section on Industrial Protocol Protection , the standard port used by the Modbus TCP protocol is 502 . Furthermore, the attack name identifies a " Triangle.Research.Nano-10.PLC, " which are industrial controllers commonly utilizing Modbus for communications.

Attack Mitigation (Statement B) : The log details specify that the Action taken by the FortiGate (Edge-FortiGate) was dropped . In cybersecurity and Fortinet fabric operations, dropping a packet associated with an IPS signature means the traffic was blocked from reaching its target, thereby mitigating the attack.

Target IP Address (Statement E) : The log detail explicitly lists the Destination IP as 192.168.2.3 . The Incident Analysis page also titles the incident with dstip:192.168.2.3. While the " Affected Endpoint " is shown as 10.1.5.20 , in an " outgoing " attack direction (as shown in the log), this likely refers to the internal source/attacker IP, whereas the target is the destination IP (192.168.2.3). Thus, Statement E is incorrect.

Protocol Conflict (Statement C) : The IEC 104 protocol typically utilizes port 2404 . Since the log specifies port 502, Statement C is incorrect.

Severity Distinction (Statement D) : While the Incident severity is marked as High , the question specifically asks about event severity. The " Events " table at the bottom of the Incident Analysis page shows a " User login/logout failed " event with a medium severity. Because there is a distinction in the management console between the severity of individual events and the aggregated incident, and Statement A and B are technically definitive based on port and action, A and B are the correct architectural choices.