AI-102 Plan and manage an Azure AI solution Practice Question
You manage an Azure AI Search solution that indexes documents from Azure Blob Storage. The index must support real-time updates when documents are added or modified. Which approach should you use?
⚠ Common exam trap
Candidates often confuse the push API (Option A) as the only way to achieve real-time updates, overlooking that indexers with change tracking and a short schedule can provide automated near-real-time indexing without custom code.
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
✓
Configure an indexer with a short schedule and change tracking.
Azure AI Search indexers can be configured with a short schedule (e.g., every 5 minutes) and change tracking (using high-water mark or integrated change detection on Azure Blob Storage) to automatically index new or modified documents without manual intervention. This provides near-real-time updates while leveraging the indexer's built-in change detection capabilities.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use the push API to manually upload documents.
Why it's wrong here
Push API requires custom code and is not automated.
- ✓
Configure an indexer with a short schedule and change tracking.
Why this is correct
Indexers can detect changes in Blob Storage and update the index automatically.
- ✗
Manually reset and rerun the indexer after each change.
Why it's wrong here
Manual reset is not real-time.
- ✗
Add a cognitive skillset to process new documents.
Why it's wrong here
Skillsets enrich content but do not trigger updates.
Quick reference
Azure Blob Storage Tier Comparison
| Tier | Storage Cost | Retrieval Cost | Latency | Use Case |
|---|---|---|---|---|
| Hot | Highest | Lowest | Immediate | Active data, frequent reads |
| Cool | Lower | Higher | Immediate | Data accessed < once / month |
| Cold | Lower still | Higher | Immediate | Data accessed < once / quarter |
| Archive | Lowest | Highest + rehydration delay | Hours | Long-term compliance retention |
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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