A utility is deploying a new OPC UA network between a control center and multiple remote stations over a WAN. The network must support failover and load balancing. The security team requires mutual authentication and encryption. Which deployment architecture best meets these requirements?

Use a single OPC UA server at the control center and have remote stations connect to it.

Use OPC UA with the None security policy and implement a custom load balancer.

Use OPC UA with anonymous access and rely on the WAN VPN for security.

Deploy OPC UA servers at each remote station and configure the clients with multiple server endpoints, using OPC UA security policies with certificates.

EC-CouncilICS/SCADA Cybersecurity

Domain 6Objective 3

Securing the Protocols Unique to the ICS ICSSCADA Practice Questions (Page 9)

Part of the Securing the ICS Network domain, which makes up ~16% of our current practice bank. EC-Council does not publish an official question count, but from its 120-minute exam (~50–80 total, ~8–13 in this domain), expect 1–2 from this objective — we provide 41 practice questions to prepare you well beyond it. (estimate)

41questions here

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Questions 41–41

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A utility is deploying a new OPC UA network between a control center and multiple remote stations over a WAN. The network must support failover and load balancing. The security team requires mutual authentication and encryption. Which deployment architecture best meets these requirements?
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Securing the Protocols Unique to the ICS ICSSCADA Practice Questions (Page 9)

Questions 41–41

A utility is deploying a new OPC UA network between a control center and multiple remote stations over a WAN. The network must support failover and load balancing. The security team requires mutual authentication and encryption. Which deployment architecture best meets these requirements?

Keep studying — Securing the ICS Network