The monitoring plane is generally composed of the monitoring unit of the main control board and the interface board, which can independently complete the system's environmental monitoring. Which of…

Question

Options

• ASystem power on and off detection
• BVoltage detection
• CFan control
• DTemperature detection

• A
  100% (43)

Explanation

All four options are correct because the monitoring plane is designed as a comprehensive, independent environmental oversight layer within the system - it handles the full range of hardware health indicators. Power on/off detection (A) ensures the system can track and respond to power state changes without relying on the main processing plane. Voltage detection (B) safeguards hardware by alerting to abnormal supply levels, while temperature detection (D) prevents thermal damage by continuously reading sensor data. Fan control (C) closes the loop on thermal management by actively adjusting cooling speed in response to temperature readings. Since there are no wrong distractors here (all choices are valid), the key exam trap is assuming the monitoring plane is limited - remember it is built to independently handle the full scope of environmental monitoring, not just one or two functions.

Memory tip: Use the acronym PVFT - Power, Voltage, Fans, Temperature - to recall the four pillars of environmental monitoring that the monitoring plane covers independently.

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