220-1101 Question 301
Single answerLiquidA user accidentally spills coffee onto a laptop keyboard while working at a desk. The laptop is still powered on and responsive. As the technician on site, what should you do FIRST to reduce the chance of permanent damage?
- A
Shut down the laptop, disconnect AC power, and remove the battery if it is removable
- B
Press the keys repeatedly to force the liquid out from under the keyboard
- C
Use a hair dryer on high heat to dry the keyboard immediately
- D
Restart the laptop and run hardware diagnostics before powering it off
Show answer and explanation
Correct answer: A
Explanation
The best first response to a liquid spill on a laptop is to immediately power the device down and disconnect all power sources, including AC and, if possible, the battery. This aligns with standard hardware safety and damage-mitigation practices commonly taught for CompTIA A+ Core 1. Once power is removed, the technician can blot excess liquid, position the device to drain if appropriate, and allow proper drying before inspection or testing. Running diagnostics, pressing keys, or using high heat before removing power can worsen damage. This reflects general manufacturer and IT support best practices for accidental liquid exposure on portable computers.
- A. Correct.
Correct. With a liquid spill on an energized device, the first priority is to remove power to reduce the risk of short circuits and component damage. After shutdown and disconnection from power, additional cleanup and drying steps can be performed safely. On A+ Core 1, proper response to liquid damage emphasizes immediate power removal before further troubleshooting.
- B. Incorrect.
Incorrect. Pressing keys can spread the liquid deeper into the keyboard assembly and other internal components. This action may increase contamination and damage rather than helping remove the spill.
- C. Incorrect.
Incorrect. Applying high heat with a hair dryer is not recommended. It can push moisture farther inside the device, warp plastic components, or create static-related risks. Drying should occur only after the device has been powered down and disconnected.
- D. Incorrect.
Incorrect. Continuing to operate or restart a liquid-damaged laptop increases the chance of electrical shorts. Diagnostics are not the first step in a spill scenario; power removal is.