AI-102 Implement computer vision solutions Practice Question
You need to build a solution that detects whether a person is wearing a hard hat in a construction site image. Which Azure AI service should you use?
⚠ Common exam trap
Many candidates confuse Azure AI Custom Vision with pre-built vision services like Azure AI Face or Video Indexer, assuming they can be repurposed for custom object detection, but only Custom Vision allows training on your own labeled images for specific items like hard hats.
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
✓
Azure AI Custom Vision
Azure AI Custom Vision is the correct service because it allows you to train a custom object detection model to identify specific objects—such as a hard hat—in images. Unlike pre-built services, Custom Vision lets you upload labeled images of workers with and without hard hats, train a model, and then use it to detect hard hat presence in construction site photos. This tailored approach is necessary because hard hat detection is a specialized use case not covered by generic vision APIs.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Azure AI Video Indexer
Why it's wrong here
Video analysis, not single image.
- ✗
Azure AI Face
Why it's wrong here
Face detection, not hard hat detection.
- ✓
Azure AI Custom Vision
Why this is correct
Train a custom object detection model for hard hats.
- ✗
Azure AI Document Intelligence
Why it's wrong here
Document analysis, not object detection.
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