Verifying Proper Grounding of Data Racks | Exam 220-1101: CompTIA A+ Core 1 | Site Name

Proper Grounding of Data Racks

Question

During an inspection, it was found that data racks were not properly grounded.

To pass the inspection and address a growing concern to protect data cabling and equipment, a technician must make sure all racks are properly grounded.

Which of the following tools should the technician use to verify this has been completed?

Answers

Explanations

Click on the arrows to vote for the correct answer

A. B. C. D.

A.

The correct answer for this question is A. Multimeter.

Explanation: Grounding is an essential safety measure for electronic equipment, and it helps to protect against electrostatic discharge (ESD), voltage surges, and electrical interference. In this scenario, the technician needs to ensure that all the data racks are properly grounded to avoid any potential damage to the data cabling and equipment.

A multimeter is a tool that can measure various electrical properties, including voltage, current, and resistance. To verify that the racks are properly grounded, the technician can use a multimeter to measure the electrical continuity between the rack and the building's grounding system. The multimeter should be set to measure resistance, and the technician can touch one probe to the rack's metal surface and the other to a known good ground.

If the multimeter reading indicates that there is low or no resistance between the rack and the ground, then the rack is properly grounded. On the other hand, if the reading shows high resistance or an open circuit, then the technician needs to investigate further to find and correct the grounding issue.

Cable testers and tone generators are used to test the connectivity and continuity of network cables, but they are not suitable for testing grounding. A voltmeter can measure voltage, but it does not provide a direct indication of grounding, and it can be dangerous to use in this context. Therefore, a multimeter is the best tool for verifying proper grounding.