1Z0-1127-25 OCI Generative AI Service Practice Question
A data scientist is creating a fine-tuning job in OCI Generative AI. They have prepared a JSONL dataset with prompt/completion pairs. What is the correct format for each line in the JSONL file?
⚠ Common exam trap
Watch out — candidates often confuse the key names with those used in other AI services (like OpenAI's fine-tuning which uses "prompt" and "completion" as well, but OCI's documentation explicitly requires these exact keys, and the exam tests attention to the specific OCI schema).
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
✓
{"prompt": "What is OCI?", "completion": "Oracle Cloud Infrastructure is a cloud computing platform."}
The OCI Generative AI fine-tuning service expects JSONL files where each line contains exactly the keys "prompt" and "completion". This format matches the service's internal training pipeline, which maps the prompt to the input and the completion to the expected output during supervised fine-tuning.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
{"input": "What is OCI?", "output": "Oracle Cloud Infrastructure is a cloud computing platform."}
Why it's wrong here
The correct field names are 'prompt' and 'completion', not 'input' and 'output'.
- ✓
{"prompt": "What is OCI?", "completion": "Oracle Cloud Infrastructure is a cloud computing platform."}
Why this is correct
This is the correct JSON format with 'prompt' and 'completion' fields.
- ✗
{"text": "What is OCI?", "label": "Oracle Cloud Infrastructure is a cloud computing platform."}
Why it's wrong here
Field names must be 'prompt' and 'completion'.
- ✗
{"question": "What is OCI?", "answer": "Oracle Cloud Infrastructure is a cloud computing platform."}
Why it's wrong here
Field names must be 'prompt' and 'completion'.
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