An administrator notices that after contact with several switches in an MDF they failed due to electrostatic discharge. Which of the following sensors should the administrator deploy to BEST monitor static electricity conditions in the MDF?
Humidity sensors monitor the humidity of the environment, which can affect the operation of electronic equipment and contribute to the buildup of static electricity, but they do not directly measure the presence of static electricity.
This is about static electricity _conditions_ - so humidity. I also would have gone for D at first, but when you look at the facts, B is the correct answer.
I'll go with B because that's what the CompTIA resources say. Also the answer choice is an "electrical" sensor, which I believe is only going to measure the energy in wires. There ARE electrostatic sensors, but that wasn't an option here. So B for me.
Humidity Electrical components and water don’t mix well.
(Remind me to tell you about the time I installed a rack in an
abandoned bathroom and the toilet that later exploded.) Remember
that dryness also means low humidity. Avoid areas with the potential
for high humidity, such as a closet near a pool or the room where the
cleaning people leave mop buckets full of water. Of course, any well
air-conditioned room should be fine—which leads to the next big
Go back to the Comptia A+ books and read about how humidity and temperature affect devices.
If humidity is too low, the dry air will lead to electrostatic discharge (ESD) which can damage critical server components. Too much humidity will cause condensation, leading to hardware corrosion and equipment failure.
An electrical sensor (also called an electronic sensor) is a device that detects a physical parameter of interest (e.g. heat, light, sound) and converts it into electrical signal that can be measured and used by an electrical or electronic system.
To monitor static electricity conditions in an MDF (Main Distribution Frame) and help prevent electrostatic discharge, the administrator should deploy B. Humidity sensors.
Humidity plays a critical role in controlling static electricity. Low humidity levels can lead to an increase in static electricity and the potential for electrostatic discharge. By monitoring humidity levels, the administrator can take proactive measures to maintain appropriate humidity levels within the MDF to reduce the risk of ESD-related failures.
Temperature (A), smoke (C), and electrical (D) sensors are valuable for different purposes, such as monitoring temperature for cooling and fire prevention, smoke for detecting fires, and electrical sensors for detecting power anomalies, but they do not directly address the issue of static electricity and electrostatic discharge.
While an electrical sensor might seem like a logical choice for monitoring static electricity, it’s not typically used for this purpose in a data center environment. Electrical sensors are generally used to monitor the electrical power supply and consumption of the equipment, not the ambient electrostatic conditions.
I agree, common sense would lead us real people to choose a humidity sensor. Here's why.
Because the other choice 'electrical sensor' is so ambiguous, it should NOT be listed as a choice. Unless Comp Tia specifically offers a common sense example, I know there are a number of types of electrical sensors that DO NOT sense static discharge concerns such as heat, light, and sound. Recommend these idiots do quality assurance on their exam questions. They could'a just specified a commonly installed P.E.G. or Piezoelectric Gravimeter. Otherwise, try to offer one of many types of Environmental Monitoring Sensor types that we would have to ensure it features sensors that alert for electrical changes in surface potential.
To monitor static electricity conditions and prevent electrostatic discharge (ESD) in a data center or MDF (Main Distribution Frame), you should deploy Environmental Monitoring Sensors. These sensors are designed to detect various environmental conditions, including temperature, humidity, and in some cases, static electricity or ESD.
although it is always good to use a humidity sensor, a low humidity gives a bigger potential to generate ESD. It could be seen as a good mitigating measure. but it will not warn you or fully take away the "danger" for ESD.
The best sensor to monitor static electricity conditions in the MDF would be an electrical sensor. This type of sensor is specifi repressive measurecally designed to detect and measure electrical charges in a given environment
ofcourse you could mitigate a lot with a good humidity, simply grounding your hardware and cabinets. with the Use ESD cloths and equipment if it is nessesery. But only the electric sensor (EES sensor) can warn you of a potential upcomming spark :)
The correct answer here is the most obvious, it's not a trick question. Humidity can play a role in static buildup, yes, but the best sensor to monitor it. An electrical sensor is the best option.
The best sensor to monitor static electricity conditions in the MDF would be an electrical sensor. This type of sensor is specifically designed to detect and measure electrical charges in a given environment. It can alert the administrator to potential issues caused by electrostatic discharge, which can damage sensitive electronic equipment. An electrical sensor can also help the administrator to identify the sources of static electricity and take appropriate measures to reduce or eliminate them.
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