1Z0-1127-25 Prompt Engineering Practice Question
A prompt engineer is iteratively refining a prompt for a product review summarizer. They want to test which prompt version yields the most accurate summaries. Which approach should they use?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Conduct an A/B test with a diverse set of inputs and compare outputs against established evaluation criteria
A/B testing involves running both prompt variants on the same inputs and comparing outputs against human-annotated ground truth. This provides quantitative evidence of which prompt performs better.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Increase temperature to get varied outputs and choose the most common one
Why it's wrong here
Temperature variation is not a method for comparing prompt versions.
- ✗
Use a different model for each prompt version
Why it's wrong here
Changing the model confounds the comparison; prompts should be tested on the same model.
- ✗
Run both prompts on a single example and pick the better-looking output
Why it's wrong here
One example is insufficient for reliable comparison.
- ✓
Conduct an A/B test with a diverse set of inputs and compare outputs against established evaluation criteria
Why this is correct
A/B testing with diverse inputs and clear criteria yields robust results.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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