Question: *Only a regular expression is required, no programming behind it. An example of one is (a+b)(a+b)* Thanks for any answers. In order to locate industrial

*Only a regular expression is required, no programming behind it. An example of one is (a+b)(a+b)* Thanks for any answers.

In order to locate industrial control devices utilizing the Modbus communications protocol, create a regular expression that finds ESTABLISHED and LISTENING network connections on TCP port 502.

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