Ethical Hacking Essentials Practice Test

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In the Purdue model, which zone segregates IT and OT systems to ensure uninterruptible production?

Field Zone
Industrial demilitarized zone
Operational zone
Enterprise Zone

The correct answer is: Industrial demilitarized zone

The industrial demilitarized zone plays a crucial role in the Purdue model by providing a segmented area between IT (Information Technology) and OT (Operational Technology) systems. This design helps to maintain uninterruptible production by minimizing the risk of cyber threats that could disrupt operational processes. By placing a barrier in the form of a demilitarized zone, organizations can monitor and control the traffic between IT and OT networks, allowing for enhanced security while enabling necessary communication. This segregation ensures that operational systems—whose functionality is critical to production—are shielded from vulnerabilities present in less secure IT environments. This approach recognizes the significance of both IT and OT systems while also addressing the distinct requirements and risks associated with each. The segmentation provided by the industrial demilitarized zone is essential for maintaining system integrity and ensuring continuous operations in industrial settings.