Free Fortinet NSE6_OTS_AR-7.6 Exam Dumps June 2026

Deploying a FortiGate in offline IDS (also known as one-arm sniffer mode) is a common strategy in OT environments for several reasons found in the study guide:

Priority of Availability: In OT, availability and safety are critically important and prioritized higher than in IT. An offline IDS minimizes impact because it does not sit in the direct path of production traffic.

Network Sensor Role: In this mode, the FortiGate is connected to a mirror/SPAN port on a switch. It acts as a network sensor, receiving a copy of the traffic rather than having the traffic flow through it. This confirms Statement A is correct and Statement D is incorrect.

Passive vs. Active: The guide explicitly states that in OT environments, passive methods are preferred over active methods to avoid negatively impacting performance or causing process interruptions.

Depth of Visibility: Even though the device is offline, you apply security profiles (such as IPS, Application Control, and Antivirus) to the sniffer interface. This allows the FortiGate to analyze the copied traffic and provide deep visibility into the OT assets and their behaviors. This confirms Statement B is correct.

Detection vs. Prevention: An IDS (Intrusion Detection System) is passive; it can detect threats but cannot reset connections or drop packets to block attacks. Therefore, it cannot block zero-day attacks, making Statement C incorrect.

Based on the provided exhibits from the FortiAnalyzer playbook engine:

Playbook Trigger Condition: The Partial Playbook configuration exhibit shows that the playbook is set to trigger based on a condition where the Basic Handler Name is Equal To IPS_Attack_Handling.

Event vs. Log: In FortiAnalyzer, the field Basic Handler Name is a property of an Event record, indicating the specific Event Handler that generated it. A playbook configured with this condition is triggered by an Event, not directly by a raw log.

Playbook Execution Flow: The Partial Playbook Monitor view shows the execution sequence:

Event_Trigger (Starter): This is the entry point of the playbook, which matches the condition defined in the configuration.

IPS_Attack_Incident: The first task executed after the trigger.

Run_Report: The task in question, which is executed as part of the automated workflow initiated by the starter.

Conclusion: Since the playbook's 'Starter' is defined by the IPS_Attack_Handling handler name, an event produced by that handler is the root trigger for the entire playbook execution, including the Run_Report task.

Therefore, the Run_Report task was triggered (as part of the playbook) by an IPS_Attack_Handling event.