Original English practice examples, with answers and explanations available here. No account required. These are independent teaching examples, not official exam questions or exam dumps.
Question 1 of 3 · A+ · Mobile devices and computer hardware
Answer and explanation
Best answer: Use a supported dock or power arrangement with sufficient delivered wattage
The measured power shortfall explains discharge under load even though data and video work. Use a supported arrangement that meets the laptop power requirement.
Why the other choices fit less well
Battery replacement is premature when the measured charging input is insufficient. Stable video does not indicate a graphics-driver fault; reducing refresh rate without checking the required and delivered wattage does not establish a supported charging arrangement.
Best answer: Back up the required files and verify that the backup can be read
Preserve the required data and verify the backup before a destructive operation. Confirm the destination and that the files open; an unverified backup is an assumption.
Why the other choices fit less well
A reset can remove data before recovery is possible. A renamed folder remains on the same drive. Cloud sync must be checked rather than presumed to cover local files.
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