AI-103 Plan And Manage AN Azure AI Solution Practice Question
You are troubleshooting a performance issue where requests to an Azure OpenAI model deployment experience intermittent HTTP 429 errors. You examine Azure Monitor metrics and see that the 'Processed Tokens' metric is well below your provisioned limit, but the 'Requests' metric spikes. What is the root cause of the error?
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 request rate (Transactions Per Second) has exceeded the provisioned limit, even though token volume is within bounds.
HTTP 429 errors can be caused by exceeding Transactions Per Second (TPS) limits even if token quotas are not exhausted.
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 model weights have become corrupted and require redeployment.
Why it's wrong here
Model corruption would typically result in HTTP 500 errors, not rate-limiting HTTP 429 errors.
- ✓
The request rate (Transactions Per Second) has exceeded the provisioned limit, even though token volume is within bounds.
Why this is correct
Azure OpenAI enforces both token-based and request-rate (Calls per Minute/Second) limits; exceeding either triggers HTTP 429.
- ✗
The Azure subscription has run out of monthly financial budget.
Why it's wrong here
Exceeding budget alerts do not automatically trigger HTTP 429 throttling errors from the service.
- ✗
The Private Endpoint DNS resolution has failed.
Why it's wrong here
DNS resolution failure results in connection timeout or name resolution errors (e.g., DNS_PROBE_FINISHED_NXDOMAIN), not HTTP 429.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official Microsoft exam blueprint
This AI-103 practice question is part of Courseiva's free Microsoft 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 AI-103 exam.