1Z0-1127-25 Using OCI Generative AI Service Practice Question
Exhibit
{
"status": 400,
"code": "InvalidParameter",
"message": "The model 'cohere.command-light' is not supported in region 'us-phoenix-1'."
}Refer to the exhibit. A user receives this error when calling the OCI Gen AI inference endpoint. What is the most likely cause?
⚠ Common exam trap
Oracle often tests the distinction between 'model not found' (invalid model name) and 'model not available in region' (valid model but not deployed there), leading candidates to incorrectly select the model name option when the error message explicitly mentions regional unavailability.
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
✓
The model is not deployed in the region
The error indicates that the model is not available in the specified region. OCI Gen AI models are deployed regionally, and each region supports only a specific subset of models. If the user calls an endpoint in a region where the requested model has not been deployed, the service returns an error because the model's inference endpoint does not exist in that region's routing table.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The region name is misspelled
Why it's wrong here
Misspelled region would give a different error about region not found.
- ✓
The model is not deployed in the region
Why this is correct
The error indicates the model is not supported in that region.
- ✗
The API key is expired
Why it's wrong here
Expired API key returns 401 Unauthorized.
- ✗
The model name is incorrect
Why it's wrong here
Incorrect model name returns 'model not found' error.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 1Z0-1127-25 practice question is part of Courseiva's free Oracle certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 1Z0-1127-25 exam.