This question-specific review guide is tied to the answer reasoning for a PracticeTestVault item. Use it after you answer the question so the review stays focused on what the prompt actually tested.
What this question is testing
Objective: Power
Prompt focus: What does the 80 Plus certification on a power supply indicate?
Why the correct answer works
The PSU has at least 80% efficiency at certain loads
80 Plus certifies at least 80% efficiency at rated loads.
Why the tempting wrong answer fails
The tempting wrong answer usually loses because it skips the key condition, priority, or evidence in the prompt.
Plain-language takeaway
80 Plus and its tiers (Bronze, Silver, Gold, Platinum, Titanium) certify a PSU achieves at least 80% efficiency at specified loads, reducing waste heat and energy use.
Simple analogy
Think of power like following a short checklist: identify the clue, confirm the rule, and then make the move that fits this exact scenario.
How to review it before a retake
- Underline the command word and name what the question is asking before rereading the choices.
- Compare the correct answer against the closest distractor and write the exact detail that separates them.
- Retest this objective with a fresh question without looking at the rationale first.