1Z0-1127-25 OCI Generative AI Service Practice Question
A developer is using the OCI Generative AI Generate API (not Chat API) to create a single-turn text completion. They need to include a system-level instruction that guides the model's behavior for that request. Which parameter 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
✓
'preamble_override' parameter
The Generate API uses 'preamble_override' to set a system instruction for the completion. The 'system' parameter is for the Chat API. 'max_tokens' and 'temperature' are not system instructions.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
'temperature' parameter
Why it's wrong here
Temperature controls randomness, not system behavior.
- ✓
'preamble_override' parameter
Why this is correct
In the Generate API, 'preamble_override' allows you to set a preamble that acts as a system instruction for the completion.
- ✗
'system' parameter
Why it's wrong here
The 'system' parameter is used in the Chat API, not in the Generate API.
- ✗
'max_tokens' parameter
Why it's wrong here
Max tokens limits the response length; it does not provide a system instruction.
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