Historian Server Locations for Reporting Natural Gas Usage
Question
An energy company is required to report the average pressure of natural gas used over the past quarter.
A PLC sends data to a historian server that creates the required reports.
Which of the following historian server locations will allow the business to get the required reports in an || and IT environment?
Answers
Explanations
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A. B. C. D.A.
The question is asking for the best location for the historian server that will allow the energy company to report the average pressure of natural gas used over the past quarter in an IT environment. Let's examine each answer option in detail:
A. In the || environment, use a VPN from the IT environment into the || environment.
Using a VPN (Virtual Private Network) to connect the IT environment to the || environment would create a secure connection between the two environments. However, it would still require the historian server to be located in the || environment, which may not be the most practical or secure option.
B. In the || environment, allow IT traffic into the || environment.
Allowing IT traffic into the || environment would mean that the historian server would be located within the || environment. This option may not be the most secure as it could potentially expose the || environment to security threats and attacks from the IT environment.
C. In the IT environment, allow PLCs to send data from the || environment to the IT environment.
This option would involve having the historian server located within the IT environment and allowing PLCs to send data from the || environment to the IT environment. This would be a more secure option as it would allow for better control and monitoring of the data being transferred from the || environment to the IT environment.
D. Use a screened subnet between the || and IT environments.
Using a screened subnet would create a secure and isolated environment between the || and IT environments, which would allow for better control and monitoring of the data being transferred between the two environments. This would be a more secure option, but it may also be more complex to set up and maintain.
In conclusion, option C, which involves having the historian server located in the IT environment and allowing PLCs to send data from the || environment to the IT environment, would be the best option in terms of security and practicality.
