CA1-005: CompTIA SecurityXDemo

Question

Within a SCADA environment, a business requires access to the historian server to collect metrics on the environment's functionality. Which of the following actions should be taken to meet this requirement?

A Isolating the historian server for connections only from the SCADA environment
B Publishing the C$ share from SCADA to the enterprise
C Deploying a screened subnet between IT and SCADA
D Adding the business workstations to the SCADA domain

Explanation

A screened subnet between the IT network and the SCADA environment creates a controlled security boundary for business access to historian data. It enables tightly restricted, monitored communications while keeping enterprise systems separated from critical industrial-control assets.

CA1-005: CompTIA SecurityXDemo

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