CompTIA 220-801 Certification Practice Test

Answer -- A -- The first step in troubleshooting this problem would be to check if the wall outlet supplying the power is working correctly. Then, proceed to the other components that are related to the power subsystem; including the power supply, the UPS, and power connectors.

Key takeaway: In order to troubleshoot issues, first isolate the points of failure or components that could go wrong and cause the issue. Next, establish a logical order that should be followed to troubleshoot an issue. This order determines the components that should be checked first, followed by the rest (from the point of origin to the destination).

In this case, power originates from the wall outlet. Hence, it should be checked first.