1Z0-1127-25 Prompt Engineering Practice Question
A prompt engineer is designing a system that must extract structured data from unstructured text. The model occasionally outputs extra text beyond the required JSON. Which parameter should be adjusted to enforce strict output format?
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
✓
Set a stop sequence to the closing delimiter of the JSON (e.g., '}')
Stop sequences tell the model when to stop generating. By adding a stop sequence like '}' (end of JSON), the model will terminate after the JSON object, preventing extra text.
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 the frequency penalty
Why it's wrong here
Frequency penalty reduces repetition, but does not stop generation at a specific point.
- ✗
Reduce the temperature to 0
Why it's wrong here
Temperature 0 makes output deterministic but does not prevent extra generation after the JSON.
- ✗
Increase the top-p value
Why it's wrong here
Top-p does not control where generation ends.
- ✓
Set a stop sequence to the closing delimiter of the JSON (e.g., '}')
Why this is correct
Stop sequences halt generation when the specified token or string is produced, ensuring no additional output after the JSON.
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