EC-Council ICS-SCADA Exam - Topic 1 Question 22 Discussion

The third generation of ICS/SCADA systems is considered distributed. This generation features systems that are networked and interconnected, typically using a variety of standard communication protocols. This distribution allows for broader connectivity and integration with other systems, enhancing operational flexibility and efficiency but also introducing more vectors for potential cyber threats. Reference:

Joseph Weiss, 'Protecting Industrial Control Systems from Electronic Threats'.

The third generation of ICS/SCADA systems is considered distributed. These systems emerged in the late 1990s and early 2000s and were designed to overcome the limitations of earlier generations by leveraging networked architectures.

Distributed Architecture: Third-generation systems distributed control functions across multiple interconnected devices and systems, providing greater scalability and flexibility.

Network Integration: These systems integrated more extensively with IT networks, allowing for remote monitoring and control.

Standard Protocols: Adoption of standard communication protocols (e.g., Ethernet, TCP/IP) facilitated interoperability and integration with other systems.

Enhanced Redundancy: Improved fault tolerance and redundancy were implemented to ensure system reliability.

Due to these features, the third generation is known as the distributed generation.

Reference

'SCADA Systems,' SCADAHacker, SCADA Generations.