1Z0-1127-25 Deploying and Managing Generative AI on OCI Practice Question
A team is fine-tuning a foundation model on a large dataset stored in OCI Object Storage. They want to minimize data transfer costs. What is the best practice for locating the storage?
⚠ Common exam trap
Oracle often tests the misconception that specifying an availability domain (Option A) is necessary for cost optimization, when in fact Object Storage buckets are regional and availability domain selection is irrelevant for data transfer costs.
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
✓
Place the bucket in the same region as the fine-tuning job
Placing the Object Storage bucket in the same OCI region as the fine-tuning job eliminates cross-region data transfer charges. OCI charges egress fees when data moves between regions, but intra-region data transfer between services in the same region is free. This minimizes costs while keeping the data accessible for the fine-tuning workload.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Place the bucket in the same region and availability domain as the fine-tuning job
Why it's wrong here
Incorrect: Availability domain does not affect data transfer costs; same region is sufficient.
- ✗
Use OCI File Storage instead of Object Storage
Why it's wrong here
Incorrect: File Storage may have higher costs and is not optimized for large-scale training data.
- ✗
Use a cross-region bucket to leverage geographically distributed data
Why it's wrong here
Incorrect: Cross-region data transfer incurs egress costs.
- ✓
Place the bucket in the same region as the fine-tuning job
Why this is correct
Correct: Same-region transfer is free of charge.
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