Practice Quiz

CompTIA A+ 220-801

Category - 801: Laptops

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A user calls the help desk from the road complaining that her new laptop’s power adapter is not working correctly. She recently purchased this laptop to replace an older model laptop. A mobile phone plugged into the same wall outlet receives power, and the user states that the power adapter at her office works fine. What is MOST likely the problem?
  1. The battery is not inserted and locked properly.
  2. The customer is using the power adapter for the older model laptop.
  3. The user is not using a power converter.
  4. The power outlet is not providing enough voltage.
Explanation
Answer: B - The customer is using the power adapter for the older model laptop.

Key Takeaway: Although power adapters for laptops may look similar, they are not interchangeable. Most laptops will power-on if plugged-in even if the battery is not inserted properly, and the power adapters for most laptops have built-in converters if traveling internationally. It is doubtful the power outlet is not providing enough voltage, especially because a mobile phone plugged into the wall has no issue powering.
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