A plant network monitors pumps and valves and can send control commands to that equipment. Which system type is that?
Select an answer to reveal the explanation.
Short Explanation
The network is watching the machinery and is allowed to tell it what to do. You are looking at a supervisory control system. A print queue, a mail filter, and a clock source do not open a valve.
Full Explanation
Supervisory control and data acquisition, the plant-control class on the outline, monitors equipment such as pumps and valves and can send commands to it. That is this network. A print server queues print jobs. It does not open valves. A spam gateway filters mail. It does not monitor pumps. An NTP server synchronizes clocks. Accurate time can help the logs, and the time server does not command the equipment. Exam caveat: this traffic belongs on a carefully separated network. Naming the system does not make it safe to hang on the office LAN. Operational check: confirm the monitoring station sees the pump status and that a test command reaches only the equipment it should. Confirm a test command reaches only the equipment it should. Keep this traffic off the ordinary office LAN. Write the result on the ticket before you close it.