CompTIA A+ Core 1 · 220-1101
Objective 3.5: Install or replace the appropriate power supply
Practice questions for A+ Core 1 objective 3.5, “Install or replace the appropriate power supply.” Every question is original, written to the 220-1101 exam objectives, and comes with a full explanation — answer them below to see instant grading.
This objective sits in Domain 3.0: Hardware, which is about 25% of the exam — so mastering it moves your readiness score meaningfully.
1.A discrete GPU requires a PCIe 8-pin power connector. The technician's PSU only has a PCIe 6-pin connector. What should be done?
2.A small form factor (SFF) desktop uses a TFX-style power supply rather than a standard ATX PSU. A technician needs to replace it. What must they consider?
3.What does 80 Plus Gold certification indicate about a power supply?
4.A technician measures voltages on a running PSU using a multimeter. The +12V rail reads 11.4V under load. What does this indicate?
5.Which PSU connector type is used to power PCIe graphics cards and comes in 6-pin and 8-pin variants?
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